datasheet for SI9175DH

datasheet for SI9175DH
Si9175
Vishay Siliconix
High Performance Step-Down DC-DC Converter
With Adjustable Output Voltage
D Synchronizable to13-MHz Clock
D User Selectable PWM, PSM, or AUTO Mode
D PSM Frequency w20 kHz for Inaudible
Harmonics
FEATURES
D
D
D
D
D
D
D
D
D
D
D
D
D
2-MHz PWM Operation
Integrated MOSFET Switches
2.6-V to 6.0-V Input Voltage Range
Minimal Number of External Components
Up to 96% conversion efficiency
600-mA Load Capability
100% Duty Cycle Allows Low Dropout
Integrated Compensation Circuit
Over-Current Protection
Shutdown Current < 2 mA
Thermal Shutdown
Integrated UVLO
10-Pin MSOP and Space Saving MLP33 Packaging
APPLICATIONS
D
D
D
D
D
D
D
D
D
W-CDMA Cell Phone
PDAs/Palmtop PCs
LCD Modules
Portable Image Scanners
GPS Receivers
Smart Phones
MP3 Players
3G Cell Phone
Digital Cameras
DESCRIPTION
The Si9175 is a high efficiency 600-mA step down converter
with internal low on resistance power MOSFET switch and
synchronous rectifier transistors. It is designed to convert one
cell LiIon battery or three cell alkaline battery voltages to a
dynamically adjustable dc output.
The integrated high
frequency error amplifier with internal compensation
minimizes external components.
minimize system noise, the switching frequency can be
synchronized to an external 13-MHz clock.
In order to insure efficient conversion throughout the entire
load range, PWM (pulse width modulation), PSM (pulse
skipping mode) or Auto mode can be selected. In PWM mode,
2-MHz switching permits use of small external inductor and
capacitor sizes allowing one of the smallest solutions. To
The Si9175 is available in the10-pin MSOP and the even
smaller MLP33 package and is specified to operate over the
industrial temperature range of –40_C to 85_C. The Si9175
packaged in the MLP33 package is available in both standard
and lead (Pb)-free.
PSM mode provides increased efficiency at light loads. In PSM
mode the oscillator frequency is kept above 20 kHz to avoid
audio band interference. When operating in Auto mode, the
converter automatically selects operating in either PWM or
PSM mode according to load current demand.
TYPICAL APPLICATIONS CIRCUIT
BATTERY
VIN
2.2 mH
VOUT
LX
VDD
CIN
10 mF
COUT
4.7 mF
Si9175
R1
PGND
13 MHz
SYNC
FB
ENABLE
PWM/PSM/AUTO
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
SD
MODE
REF
AGND
REF
R2
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Si9175
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to AGND = 0 V
VIN, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 V
Lx, SD, MODE, FB, CREF, SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 to 6.2 V
(or to VDD )0.3 V whichever is less)
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 to +0.3 V
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to 125_C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150_C
Power Dissipation (Package)a
10-pin MSOPb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 481 mW
10-pin MLP33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 915 mW
Thermal Impedance (QJA)
10-Pin MSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135_C/W
10-Pin MLP33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71_C/W
Peak Inductor Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 A
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 7.4 mW/_C above 85_C.
c. Derate 14 mW/_C above 85_C.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
VIN Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6 V to 5.5 V
Inductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 mH
CIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mF Ceramic
Operating Load Current PWM Mode . . . . . . . . . . . . . . . . . . . . . . 0 to 600 mA
COUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7 mF Ceramic
Operating Load Current PSM Mode . . . . . . . . . . . . . . . . . . . . . . . 0 to 150 mA
SPECIFICATIONS
Test Conditions Unless Specified
Parameter
Modef
Symbol
Limits
−40_C to 85_C, VIN = VDD,, CIN = 10 mF, COUT = 4.7 mF
L = 2.2 mH, 2.6 V v VIN v 5.5 V, R1 = 11.3 kW, R2 = 20 kW
Mina
VIN rising
2.3
Typb
Maxa
Unit
Under Voltage Lockout (UVLO)
Under Voltage Lockout (turn-on)
Hysteresis
2.5
V
0.1
Shutdown (SD)
Logic HIGH
VSDH
Logic LOW
VSDL
Delay to Outputc
ten
Pull Down
ISD
1.6
0.4
RL = 3.3 W
Settle Within $2% accuracy SD rising
tr < 1 ms
V
100
RL = 51 W
ms
100
Input at VIN
mA
Mode Selection Tri-Level Logic (MODE)
MODE Pin HIGH
PWM
MODE Pin LOW
Auto
VIN −0.4
VIN
0.4
Mode Pin Input Current
MODE = GND
−5
MODE = VIN
5
V
mA
Oscillator
Frequency
fOSC
1.6
2
2.4
MHz
External Clock Synchronization (SYNC)
Frequency
SYNC Input = 500 mVp-p
Ac Coupled Sinewave
13
Frequency = 13 MHz
0.2
MHz
0.8
Vp-p
Error Amplifier (FB Pin)
FB Voltage Accuracy
Power Supply Rejection
Input Bias Current
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2
VFB
PSRR
VIN = 2.6 V to 5.5 VDC
IFB
VFB = 1.25 V
TA = 25_C
1.190
TA = −40 to 85_C
1.173
1.215
1.240
1.257
60
−1
0.01
V
db
1
mA
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
Si9175
Vishay Siliconix
SPECIFICATIONS
Test Conditions Unless Specified
Parameter
Modef
Symbol
−40_C to 85_C, VIN = VDD,, CIN = 10 mF, COUT = 4.7 mF
L = 2.2 mH, 2.6 V v VIN v 5.5 V, R1 = 11.3 kW, R2 = 20 kW
Maximum Output
Current
PWM
ILOAD
VIN = 3.6 V
Maximum Output
Current
PSM
ILOAD
VIN = 3.6 V
Dropout Voltagee
VDD
VIN = 2.6 V, IOUT = 600 mA
Closed Loop Bandwidth
BW
Limits
Mina
600
Typb
Maxa
Unit
Converter Operation
Load Regulationc
PWM
150
190
IOUT = 30 mA to 600 mA
0.5
IOUT = 30 mA to 75 mA
0.25
PWM
Line Regulation
IAUpk
200
Maximum Inductor Peak Current Limit
ILpk
1500
P-Channel
On Resistance
N-Channel
VIN = 3.6
36V
0 05 W COUT(ESR)
0.05
PSM
PWM
Efficiency
Frequency
%/V
mA
250
rDS(on)
DS( )
PWM
Output Ripple Voltage
mV
%
"0.1
PWM/PSM Switch Threshold Current
mA
kHz
"0.1
VOUT = 3.0
3 0 V,
V VIN = 3.5
3 5 V to 5
5.5
5V
PSM
300
300
VIN = 3.6 V
VOUT = 1.9 V @ 25_C
PSM
mA
VIN = 3.6
3 6 V,
V VOUT = 3.3
33V
PSM
PSM
mW
250
IOUT = 600 mA
60
IOUT = 30 mA
80
IOUT = 600 mA
90
IOUT = 30 mA
80
IOUT w 30 mA
mVp-p
%
20
kHz
Supply Current
PWM
Input Supply Current
PSM
Shutdown Supply Current
450
ISUPPLY
(VDD &
VIN)
IOUT = 0 mA,
mA VIN = 3.6
3 6 V (not switching
switching, FB = GND)
ISD
SD = Low
750
mA
400
2
Thermal Shutdown
Thermal Shutdown Temperaturec
Thermal Hysteresisc
TJ(S/D)
165
20
_C
Notes
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
b. Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing.
c. Guaranteed by design.
d. Settling times, ts, apply after ten.
e. Bypass is a device mode of operation, in which, the device is in 100% duty cycle. Bypass operation is possible in either PWM or PSM.
f.
Operating modes are controlled with the MODE pin where Auto mode = MODE = LOW, PWM Mode = MODE = HIGH, and PSM mode = MODE = OPEN.
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
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Si9175
Vishay Siliconix
PIN CONFIGURATION
MSOP-10
MLP33
LX
1
10
PGND
AGND
2
9
VIN
FB
3
8
SYNC
VDD
4
7
SD
REF
5
6
MODE
LX
AGND
FB
VDD
REF
10
9
8
7
6
2
3
4
5
PGND
VIN
SYNC
SD
MODE
Top View
Top View
PIN DESCRIPTION
Pin Number
Name
1
LX
2
AGND
Function
Inductor connection
Low power analog ground
3
FB
Output voltage feedback
4
VDD
Input supply voltage for the analog circuit.
5
REF
Internal reference, no connection should be made to this pin.
Used to select switching mode of the buck converter
PWM/PSM Pin Logic:
6
MODE
7
SD
8
SYNC
9
VIN
10
PGND
MODE Pin
VIN
Open
GND
Operating Mode
PWM
PSM
AUTO
Logic low disables IC and reduces quiescent current to below 2 mA
Converter switching frequency can be synchronized to 1/6 of the clock frequency at this pin.
Input supply voltage
Low impedance power ground
ORDERING INFORMATION
MSOP-10
MLP33
Standard
Part Number
Marking
Temperature
Standard
Part Number
Lead (Pb)-Free
Part Number
Marking
Temperature
Si9175DH-T1
9175
−40 to 85_C
Si9175DM-T1
Si9175DM-T1—E3
9175
−40 to 85_C
Additional voltage options are available.
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Eval Kit
Temperature Range
Board
Si9175DB
−40 to 85_C
Surface Mount
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
Si9175
Vishay Siliconix
FUNCTIONAL BLOCK DIAGRAM
VDD
VIN
Si9175
PMOS
Current Sense
Error
Amplifier
FB
−
+
REF
Clamp
PWM
Comparator
−
+
PWM and
Pulse
Skipping
Logic
LX
To IC Bias
Voltage
Reference
UVLO
B6
AGND
SYNC
2 MHz
Oscillator
MODE
SD
PGND
DETAIL DESCRIPTION
General
The Si9175 is a high efficiency synchronous dc-dc converter
that is ideally suited for lithium ion battery or three cell alkaline
applications, as well as step-down of 3.3-V or 5.0-V supplies.
The major blocks of the Si9175 are shown in the Functional
Block Diagram. The 0.25-W internal MOSFETs switching at a
frequency of 2-MHz minimize PC board space while providing
high conversion efficiency and performance. The high
frequency error-amplifier with built-in loop compensation
minimizes external components and provides rapid output
settling times of <30 ms. Sensing of the inductor current for
control is accomplished internally without power wasting
resistors. The switching frequency can be synchronized to an
external 13-MHz clock signal.
accomplished in PWM mode to ensure start-up under all load
conditions. Switching to other modes of operation occurs
according to the state of the MODE pin and the load current.
The start-up sequence occurs after SD switches from LOW to
HIGH with VIN applied, or after VIN rises above the UVLO
threshold and SD is a logic HIGH.
Mode Control (MODE)
The MODE pin allows the user to control the mode of operation
or to enable the Si9175 to automatically optimize the mode of
operation according to load current. There are three different
modes of operation as controlled by the MODE pin. Switching
waveforms are shown in the Typical Switching Waveform
sections, page 9.
Start-Up
PWM Mode (MODE pin = HIGH)
When voltage is applied to VIN and VDD, the under-voltage
lockout (UVLO) circuit prevents the oscillator and control
circuitry from turning on until the voltage on the exceeds 2.4 V.
With a typical UVLO hysteresis of 0.1 V, the converter
operates continuously until the voltage on VIN drops below
2.3 V, whereupon the converter shuts down. This hysteresis
prevents false start-stop cycling as the input voltage
approaches the UVLO switching threshold. Start-up is always
With the MODE pin in the logic HIGH condition, the Si9175
operates as a 2-MHz fixed frequency voltage mode converter.
A NMOS synchronous rectification MOSFET transistor
provides very high conversion efficiency for large load currents
by minimizing the conduction losses. PWM mode provides low
output ripple, fast transient response, and switching frequency
synchronization. Output load currents can range from 0 to
600 mA.
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
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Si9175
Vishay Siliconix
The error amplifier and comparator control the duty cycle of the
PMOS MOSFET to continuously force the REF pin and FB pin
voltages to be equal. As the input-to-output voltage difference
drops, the duty cycle of the PMOS MOSFET can reach 100%
to allow system designers to extract the maximum stored
energy from the battery. The dropout voltage is 190 mV at
600 mA.
During each cycle, the PMOS switch current is limited to a
maximum of 1.5 A (typical) thereby protecting the IC while
continuing to force maximum current into the load.
Pulse Skipping Mode (MODE pin = OPEN)
By leaving the MODE pin open-circuit, the converter runs in
pulse skipping mode (PSM). In PSM mode the oscillator
continues to operate, but switching only occurs if the FB pin
voltage is below the REF voltage at the start of each clock
cycle. Clock cycles are skipped thereby reducing the
switching frequency to well below 100 kHz and minimizing
switching losses for improved efficiency at loads under
150 mA. Although PSM mode switching frequency varies with
line and load conditions, the minimum PSM frequency will be
kept above 20 kHz for load currents of 30 mA or more to
prevent switching noise from reaching the audio frequency
range.
Each time the PMOS switch is turned on, the inductor current
is allowed to reach 300 mA. Once achieved, the PMOS switch
is turned off and the NMOS switch is turned on in the normal
manner. However, unlike PWM mode, the NMOS switch, turns
off as the switch current approaches zero current to maximize
efficiency. The PMOS switch remains on continuously (100%
duty cycle) when the input-voltage-to-output-voltage
difference is low enabling maximum possible energy
extraction from the battery.
nominal. There is hysteresis in the switchover threshold to
provide smooth operation. Thus, the mode PSM-to-PWM
mode switchover current for increasing load currents is higher
than that of PWM-to-PSM mode switchover for decreasing
load currents.
Oscillator Synchronization (SYNC)
The internal oscillator provides for a fixed 2-MHz switching
frequency. In order to minimize system noise, the oscillator of
the Si9175 can be synchronized to an external clock, typically
an ac-coupled 13-MHz sine wave. An on-chip divide-by-six
circuit sets the converter switching frequency to 2.167 MHz in
this mode. The frequency lock range of the synchronization
circuitry is typically 20%. If synchronization is not required, the
SYNC pin must be tied to GND permitting the internal oscillator
to oscillate at 2 MHz.
Dynamic Output Voltage Control (REF)
The Si9175 is designed with an adjustable output voltage
which has a change of VFB to VIN − VDROP. VOUT is defined
according to the following relationship:
ǒ
VOUT + 1 )
R1
R2
Ǔ
VFB
Converter Shutdown (SD pin)
PSM mode is recommend for load currents of 150 mA or less.
With logic LOW level on the SD pin, the Si9175 is shutdown.
Shutdown reduces current consumption to less than 2-mA by
shutting off all of the internal circuits. Both the PMOS and
NMOS transistors are turned off. A logic HIGH enables the IC
to start up as described in “Start-up” section.
Auto Mode
Thermal Shutdown
When the MODE pin grounded, the converter is set to Auto
mode. Switching between PWM mode and PSM modes takes
place automatically without an external control signal. For
heavy load operation, the converter will operate in PWM mode
to achieve maximum efficiency. When delivering light load
currents, the converter operates in PSM mode to conserve
power. The switchover threshold between the two modes is
determined by the peak inductor current, which is 300 mA
The Si9175 includes thermal shutdown circuitry, which turns
off the regulator when the junction temperature exceeds
165_C. Once the junction temperature drops below 145_C,
the regulator is enabled. If the condition causing the over
temperature, the Si9175 begins thermal cycling, turning the
regulator on and off in response to junction temperature.
Restart from a thermal shutdown condition is the same as
described in the “Start-up” section.
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Document Number: 71728
S-41148—Rev. C, 14-Jun-04
Si9175
Vishay Siliconix
APPLICATIONS CIRCUIT
BATT
VIN
2.2 mH
VOUT
LX
CIN
10 mF
VDD
C1
C2
COUT
4.7 mF
Si9175
R1
PGND
13 MHz
SYNC
FB
ENABLE
PWM/PSM/AUTO
REF
SD
MODE
REF
R2
AGND
CIN = 10 mF, Ceramic, Murata GRM42-2X5R106K16
C1, C2 = 0.01 mF, Vishay VJ0603Y 104KXXAT
COUT = 4.7 mF, Ceramic, Murata GRM42-6X5R475K16
R1 = 8.2 kW, Vishay CRCW06031132F
R2 = 20 kW, Vishay CRCW06032002F
L1 = 2.2 mH, Toko A914BYW-2R2M
TYPICAL CHARACTERISTICS
VSDH
VSDL
SD
tr
tf
Undefined
(Load Dependent)
ten
VOUT
Time
d Indicates VOUT settles to $2% of the final value.
Figure 1.
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
PWM Mode VOUT Settling
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Si9175
Vishay Siliconix
TYPICAL CHARACTERISTICS
Dropout Voltage vs. ILOAD
Auto Mode Efficiency vs. Load
100
200
VIN = 3.6 V
95
90
VOUT = 1.9 V
85
160
Dropout Voltage (mV)
Efficiency (%)
VOUT = 3.0 V
VIN = 2.6 V
VIN = 3.6 V
120
80
VIN = 5.5 V
80
40
75
0
70
0
0
100
200
300
400
500
100
200
300
400
500
600
600
Load Current (mA)
Load Current (mA)
PSM vs. PWM Efficiency
PWM
95
VOUT Ripple
PSM
90
100
PSM
80
75
0
100
200
300
400
500
600
Load Current (mA)
Auto Mode Efficiency vs. Load Direction
100
Efficiency (%)
VIN = 3.6 V
VOUT = 1.9 V
COUT = 4.7 mF
85
VOUT Ripple (mVp-p)
Efficiency (%)
100
80
60
40
Load Decreasing
95
20
Load Increasing
90
PWM
85
0
80
0
75
30
60
90
120
150
Load Current (mA)
0
100
200
300
400
500
600
Load Current (mA)
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Document Number: 71728
S-41148—Rev. C, 14-Jun-04
Si9175
Vishay Siliconix
TYPICAL SWITCHING WAVEFORMS (VIN = 3.6 V, VOUT = 3.0 V)
PWM mode Heavy-Load Switching Waveforms,
IOUT = 600 mA, MODE = HIGH
PWM Mode Medium-Load Switching Waveforms,
IOUT = 300 mA, MODE = HIGH
VLX, 5 V/div
VLX, 2 V/div
Inductor Current
500 mA/div
Inductor Current
500 mA/div
VOUT
(AC-Coupled)
10 mV/div
VOUT
(AC-Coupled)
10 mV/div
200 nS/div
200 nS/div
PWM Mode Light-Load Switching Waveforms,
IOUT = 0 mA, MODE = HIGH
PSM Mode Light-Load Switching Waveforms,
IOUT = 150 mA, MODE = OPEN
VLX, 5 V/div
VLX, 5 V/div
Inductor Current
200 mA/div
Inductor Current
200 mA/div
VOUT
(AC-Coupled)
10 mV/div
VOUT
(AC-Coupled)
10 mV/div
1.0 mS/div
200 nS/div
PSM Mode Light-Load Switching Waveforms,
IOUT = 30 mA, MODE = OPEN
VLX, 5 V/div
Inductor Current
200 mA/div
VOUT
(AC-Coupled)
100 mV/div
2.0 mS/div
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
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Si9175
Vishay Siliconix
TYPICAL WAVEFORMS (VIN = 3.6 V, VOUT = 1.9 V)
PWM Mode Medium-Load Switching Waveforms,
IOUT = 300 mA, MODE = HIGH
PWM Mode Heavy-Load Switching Waveforms,
IOUT = 600 mA, MODE = HIGH
VLX, 5 V/div
VLX, 5 V/div
Inductor Current
500 mA/div
Inductor Current
500 mA/div
VOUT
(AC-Coupled)
10 mV/div
VOUT
(AC-Coupled)
10 mV/div
200 nS/div
200 nS/div
PWM Mode Light-Load Switching Waveforms,
IOUT = 0 mA, MODE = HIGH
PSM Mode Light-Load Switching Waveforms,
IOUT = 150 mA, MODE = OPEN
VLX, 5 V/div
VLX, 5 V/div
Inductor Current
200 mA/div
Inductor Current
200 mA/div
VOUT
(AC-Coupled)
10 mV/div
200 nS/div
VOUT
(AC-Coupled)
100 mV/div
1.0 mS/div
PSM Mode Light-Load Switching Waveforms,
IOUT = 30 mA, MODE = OPEN
VLX, 5 V/div
Inductor Current
200 mA/div
VOUT
(AC-Coupled)
100 mV/div
2.0 mS/div
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Document Number: 71728
S-41148—Rev. C, 14-Jun-04
Si9175
Vishay Siliconix
TYPICAL START-UP AND SHUTDOWN TRANSIENT WAVEFORMS (VIN = 3.6 V, VOUT = 1.9 V)
Start-Up, RLOAD = 4 W
Start-Up, VIN = VSD = 3.6 V, RLOAD = 4 W
VIN, VSD, 1 V/div
VSD, 1 V/div
VOUT, 500 mV/div
VOUT, 500 mV/div
20 mS/div
20 mS/div
Enable Switching, RLOAD = 4 W
Shutdown, RLOAD = 4 W
VSD, 1 V/div
VSD 1 V/div
VOUT, 500 mV/div
VOUT, 500 mV/div
200 mS/div
20 mS/div
TYPICAL MODE SWITCH TRANSIENT WAVEFORM
Output Transient At Mode Switch, ILOAD = 30 mA
VOUT
(AC-Coupled)
200 mV/div
Mode Pin
1 V/div
100 mS/div
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
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Si9175
Vishay Siliconix
TYPICAL LOAD TRANSIENT WAVEFORMS (VIN = 3.6 V, VOUT = 1.9 V)
Load Transient, PWM Mode,
ILOAD = 30 to 500 mA, L = 2.2 mH, MODE= HIGH
Load Transient, Auto Mode, ILOAD = 30 to
500 mA, MODE = LOW
ILOAD, 200 mA /div
ILOAD, 200 mA /div
VOUT
(AC-Coupled)
50 V/div
VOUT
(AC-Coupled)
50 mV/div
10 mS/div
10 mS/div
Load Transient (PSM Mode),
ILOAD = 30 to 150 mA, L = 2.2 mH
ILOAD, 200 mA /div
VOUT
(AC-Coupled)
50 mV/div
100 mS/div
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12
Document Number: 71728
S-41148—Rev. C, 14-Jun-04
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
Package Information
Vishay Siliconix
MSOP:
10-LEADS (POWER IC ONLY)
JEDEC Part Number: MO-187, (Variation AA and BA)
(N/2) Tips)
2X
5
A B C 0.20
N N-1
0.60
0.48 Max
Detail “B”
(Scale: 30/1)
Dambar Protrusion
E
1 2
0.50
N/2
0.60
0.08 M C B S
b
A S
7
Top View
b1
e1
With Plating
e
A
See Detail “B”
c1
0.10 C
A1
-H-
D
6
Seating Plane
c
Section “C-C”
Scale: 100/1
(See Note 8)
Base Metal
-A-
3
See Detail “A”
Side View
0.25
BSC
C
Parting Line
0.07 R. Min
2 Places
C
ς
A2
Seating Plane
0.05 S
E1
-B-
L 4
T
-C-
3
0.95
End View
Detail “A”
(Scale: 30/1)
NOTES:
1.
2.
Dimensioning and tolerances per ANSI.Y14.5M-1994.
3.
Dimensions “D” and “E1” do not include mold flash or protrusions, and are
measured at Datum plane -H- , mold flash or protrusions shall not exceed
0.15 mm per side.
4.
Dimension is the length of terminal for soldering to a substrate.
5.
Terminal positions are shown for reference only.
6.
Formed leads shall be planar with respect to one another within 0.10 mm at
seating plane.
7.
N = 10L
Die thickness allowable is 0.203"0.0127.
The lead width dimension does not include Dambar protrusion. Allowable
Dambar protrusion shall be 0.08 mm total in excess of the lead width
dimension at maximum material condition. Dambar cannot be located on the
lower radius or the lead foot. Minimum space between protrusions and an
adjacent lead to be 0.14 mm. See detail “B” and Section “C-C”.
8.
Section “C-C” to be determined at 0.10 mm to 0.25 mm from the lead tip.
9.
Controlling dimension: millimeters.
10. This part is compliant with JEDEC registration MO-187, variation AA and BA.
11. Datums -A- and -B- to be determined Datum plane -H- .
12. Exposed pad area in bottom side is the same as teh leadframe pad size.
Document Number: 72817
28-Jan-04
MILLIMETERS
Dim
A
A1
A2
b
b1
c
c1
D
E
E1
e
e1
L
N
T
Min
Nom
Max
Note
−
−
1.10
0.05
0.10
0.15
0.75
0.85
0.95
0.17
−
0.27
8
0.17
0.20
0.23
8
0.13
−
0.23
0.15
0.18
0.13
3.00 BSC
3
4.90 BSC
2.90
3.00
3.10
3
0.70
4
0.50 BSC
2.00 BSC
0.40
0.55
10
0_
4_
5
6_
ECN: S-40082—Rev. A, 02-Feb-04
DWG: 5922
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1
Package Information
Vishay Siliconix
MLP33Ć10 (POWER IC ONLY)
JEDEC Part Number: Outline is consistent with JEDEC MO229-VEED-2
Detail D
4xQ
//
ccc C
A2
A
A1
NX
A3
0.08 C
Side View
e
1
A1
5
NX b
bbb M C A B
2
L2
ddd M C
D
ÉÉÉ
ÉÉÉ
ÇÇ
ÉÉÉ
ÇÇ
L + L2
Detail C
Seating
Plane
C
Detail C
A
L2
B
8
R2
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
Detail A
Detail D
Pin 1
Mark
4
N
N-1
Detail B
0.20 Ref
6
(ND-1) x
7
e
E
1
aaa C 2 X
L2
TopView
Bottom View
7
2X
aaa C
Datum A or B
Datum A or B
NX R1
NX R1
L
e2/2
e
L2
Terminal Tip
Terminal Tip
e
5
5
Detail B
Even Terminal/Side
Odd Terminal/Side
L1
L2
This Feature Applies To
Both Ends of The Package
B
Exposed Metalized Feature
Detail A
Document Number: 72819
28-Nov-05
0.17
0.30
Edge of Plastic Body
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1
Package Information
Vishay Siliconix
MLP33Ć10 (POWER IC ONLY)
N = 10 PITCH: 0.50 mm, BODY SIZE: 3.00 x 3.00
MILLIMETERS*
Dim
Min
Nom
INCHES
Max
Min
Nom
Max
Notes
A
0.80
0.90
1.00
A1
0
0.025
0.05
A2
0.65
0.70
0.75
A3
0.15
0.20
0.25
aaa
–
0.10
–
b
0.20
0.25
0.30
bbb
–
0.10
–
ccc
–
0.10
–
D
3.00 BSC
ddd
–
0.05
–
E
3.00 BSC
e
–
0.5
–
e2
1.10
1.20
1.30
L
0.45
0,58
0.65
L1
0.20
0.29
0.45
L2
–
–
0.125
N
10
ND
5
R1 Ref
–
0.100
–
R2 Ref
–
0.075
–
Q
0_
10_
12_
* Use millimeters as the primary measurement.
0.031
0
0.026
0.006
–
0.008
–
–
0.035
0.001
0.028
0.008
0.004
0.010
0.004
0.004
0.118 BSC
0.002
0.118 BSC
0.002
0.047
0.023
0.012
–
10
5
0.039
0.002
0.030
0.010
–
0.012
–
–
1, 2
1, 2
1, 2
1, 2
1, 2
5, 11
1, 2
1, 2
1, 2
1, 2
1, 2
–
0.043
0.018
0.008
–
–
–
0_
0.003
10_
–
0.051
0.026
0.018
0.005
–
–
12_
1, 2, 9
1, 2
1, 2
5, 11
3
6
5, 11
1, 2
1, 2
ECN: S-52448—Rev. B, 28-Nov-05
DWG: 5924
NOTES:
1.
Dimensioning and tolerancing conform to ASME Y14.5M-1994.
2.
All dimensions are in millimeters. All angels are in degrees.
3.
N is the total number of terminals.
4.
The terminal #1 identifier and terminal numbering convention shall conform to JESD 95-1 SPP-012. Details of terminal #1 identifier are optional, but must
be located within the zone indicated. The terminal #1 identifier may be a molded, marked, or metallized feature.
5.
Dimension b applies to metallized terminal and is measured between 0.15 mm and 0.20 mm from the terminal tip.
6.
ND refers to the maximum number of terminals on the D side.
7.
Profile tolerance (aaa) will be applicable only to the plastic body and not to the metallized features (such as the terminal tips and tie bars.) Metallized
features may protrude a maximum of L2 from the plastic body profile.
8.
The corner will be sharp unless otherwise specified with radius dimensions.
9.
Package outline is consistent with JEDEC M0229-VEED-2.
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2
Document Number: 72819
28-Nov-05
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Revision: 12-Mar-12
1
Document Number: 91000
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