TS5203 - Electronic Datasheets
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
DFN 2x2
Pin Definition:
1. Out
2. N/C
3. Ground
4. N/C
5. N/C
6. Input
SOT-23
Pin Definition:
1. Output
2. Input
3. Ground
General Description
TS5203 is an efficient linear voltage regulator with ultra low noise output, very low dropout voltage (typically 50mV
at light loads), and very low ground current (50uA typical at light loads) when the application requires. TS5203 is
stable using without a output capacitor, and TS5203 is included a precision voltage reference, error correction
circuit, a current limited output driver, over temperature shutdown.
Ordering Information
Features
●
Stable with No Output Capacitor.
●
Output Current up to 30mA
●
Low Power Consumption
●
Current Limit & Thermal Shutdown Protection
Part No.
TS5203CXxx RF
Application
Package
Packing
SOT-23
3Kpcs / 7” Reel
TS5203CQxx RF
DFN 2x2
3Kpcs / 7” Reel
Note: Where xx denotes voltage option, available are
50=5.0V
33=3.3V
Typical Application Circuit
●
Cellular Telephones
●
Palmtops, Notebook Computers
●
Battery Powered Equipment
●
SMPS Post Regulator and DC to DC Modules
●
High-efficiency Linear Power Supplies
● Portable Application
Absolute Maximum Rating (Note 1)
Parameter
Symbol
Limit
Unit
VIN
+20
V
Operating Supply Voltage
VIN(opr)
+2.5 ~ +16
V
Power Dissipation (Note 2)
PD
Internal limited
Input Supply Voltage
SOT-23
Thermal Resistance
ӨJA
DFN 2x2
Operating Junction Temperature Range
TJ
Storage Temperature Range
TSTG
o
Lead Soldering Temperature (260 C)
220
80
C/W
-40 ~ +125
o
-65 ~ +150
o
5
1/7
o
C
C
S
Version: C12
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
Electrical Specification (VIN=Vo+1V, Io=1mA, COUT=0.47uF, TJ = 25oC, unless otherwise specified.)
Parameter
Min
Typ
Max
VIN=Vo + 1V
-3
--
3
-40ºC ≤ TJ ≤ +125ºC
-4
--
4
Output Voltage Temp. Coefficient
(Note 5)
--
50
200
ppm/ C
Line Regulation
Vo+1V ≤ VIN ≤ 16V
--
0.008
0.3
%
Load Regulation (Note 6)
0.1mA ≤ Io ≤ 30mA
--
0.08
0.3
%
Io=100uA
--
50
--
Io=30mA
--
200
300
Io=100uA
--
80
--
Io=30mA
--
225
1000
Output Voltage
Dropout Voltage (Note 7)
Conditions
Ground Pin Current (Note 8)
Unit
%
o
mV
uA
Output Current Limit
VOUT =0V
--
100
--
mA
Power Supply Rejection Ratio
At f=100Hz, Io=5mA,
--
65
--
dB
Power Supply Rejection Ratio
At f=10kHz, Io=5mA,
--
45
--
dB
Thermal Regulation (Note 9)
-0.05
-%/W
Note 1: Exceeding the absolute maximum rating may damage the device.
Note 2: The maximum allowable power dissipation at any Ta is Pd(max) = [TJ(MAX) - Ta] + ӨJA. Exceeding the
maximum allowable power dissipation will result in excessive die temperature, and the regulator will go
into thermal shutdown.
Note 3: Devices are ESD sensitive. Handling precautions recommended.
Note 4: The device is not guaranteed to function outside its operating rating.
Note 5: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
Note 6: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are
tested. for load regulation in the load range from 1mA to 30mA. Changes in output voltage due to heating
effects are covered by the thermal regulation specification.
Note 7: Dropout voltage is defined as the input to output differential at which the output voltage drops 1% below its
nominal value measured at 1V differential.
Note 8: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current
drawn from the supply is the sum of the load current plus the ground pin current.
Note 9: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power
dissipation is applied, excluding load or line regulation effects. Specifications are for a 30mA load pulse at
VIH =16V for t=10mS.
2/7
Version: C12
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
Application Information
Input Capacitor Requirement
An input capacitor of 0.17uF or greater is recommended when the device is more than 10” away from the bulk
AC supply capacitance or when the supply is a battery.
Output Capacitor Requirement
The TS5203 series is stable operating without output capacitor, as maintaining stability requiring is only 0.47uF
of output capacitance for stability and improve transient response is necessary. It is stable with all type of
capacitors, including the tiny, low-ESR ceramic chip capacitors. The output capacitor value may be increased
without limit.
No Load Stability
The TS5203 series will remain stable and in regulation with no load, unlike many other voltage regulators. This is
especially important in CMOS RAM keep alive applications.
Thermal Characteristics
TS5203 series is designed to provide 30mA of continuous current and wide input voltage in a very small package.
Maximum power dissipation can be calculated based on the output current and the voltage drop across the part.
To determine the maximum power dissipation of the package, use the junction-ambient thermal resistance of the
device and the following basic equation:
PD(MAX) = [ TJ(MAX) – T A ] /ΘJA
o
TJ(MAX) is the maximum junction temperature of the die(125 C), and Ta is the ambient operating temperature. ΘJA
is layout dependent, the actual power dissipation of the regulator circuit can be determined using the equation:
PD = (VIN – VOUT) * IOUT + VIN * IGND
Substituting Pd(max) for Pd and solving for the operating conditions that are critical to the application will give the
maximum operating conditions for the regulator circuit. For example, when operating the TS5203CX33 at room
temperature with a minimum footprint layout, the maximum input voltage for a set output current can be
determined as follows:
o
o
o
PD(MAX) = (125 C – 25 C) / 220 C/W
PD(MAX) = 455mW
o
The junction to ambient thermal resistance for the minimum footprint is 220 C/W, the maximum power dissipation
must not be exceeded for proper operation. Using the output voltage of 3.3V and an output current of 30mA, the
maximum input voltage can be determined. Form the electrical characteristics table, the maximum ground
current for 30mA output current is 1mA.
445mW = (VIN – 3.3V ) * 30mA + VIN * 1mA
445mW = VIN * 30mA – 3.3 * 30mA + VIN * 1mA
445mW = VIN * 30mA – 99mW + VIN * 1mA
544mW = VIN * 31mA
VIN (max) = 17.54V
Therefore, a 3.3V application at 30mA of output current can accept a maximum input voltage of 17.54V in a SOT23 package.
3/7
Version: C12
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
Electrical Characteristics Curve
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Ground Current vs. Output Current
Figure 3. Dropout Voltage vs. Output Current
Figure 4. Short Circuit Current vs. Input Voltage
Figure 5. Ripple Rejection vs. Frequency
4/7
Version: C12
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
SOT-23 Mechanical Drawing
DIM
A
A1
B
C
D
E
F
G
H
I
J
SOT-23 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
0.95 BSC
0.037 BSC
1.9 BSC
0.074 BSC
2.60
3.00
0.102
0.118
1.40
1.70
0.055
0.067
2.80
3.10
0.110
0.122
1.00
1.30
0.039
0.051
0.00
0.10
0.000
0.004
0.35
0.50
0.014
0.020
0.10
0.20
0.004
0.008
0.30
0.60
0.012
0.024
5º
10º
5º
10º
Marking Diagram
J = Device Code
X = Voltage Code
(5 = 5.0V, S = 3.3V)
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
L = Lot Code
5/7
Version: C12
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
DFN 2x2 Mechanical Drawing
DIM
A
A1
A3
b
D
D1
E
E1
L
e
Y
DFN 2x2 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
0.55
0.65
0.022
0.026
0.005 (typ)
0.0002 (typ)
0.06(typ)
0.003(typ)
0.2
0.4
0.008
0.016
1.9
2.1
0.075
0.083
1.8(typ)
0.071(typ)
1.9
2.1
0.075
0.083
1.0(typ)
0.039(typ)
0.25(typ)
0.01(typ)
0.5(typ)
0.02(typ)
-0.1
-0.04
Marking Diagram
J
X
Y
M
L
= Device Code
= Voltage Code
(5 = 5.0V, S = 3.3V)
= Year Code
= Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug,
I=Sep, J=Oct, K=Nov, L=Dec)
= Lot Code
6/7
Version: C12
TS5203
Cap-Free, 30mA Ultra Low Dropout Voltage Regulator
Notice
Specifications of the products displayed herein are subject to change without notice. TSC 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, to
any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of
sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty,
relating to sale and/or use of TSC 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 TSC for any damages resulting from such improper use or sale.
7/7
Version: C12
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