ACE520C - ACE Technology Co., LTD.
ACE520C
Dual 300mA High PSRR Linear Regulator
Description
ACE520C dual, low-noise, low-dropout regulator delivers at least 300mA of continuous output current.
The output voltage for each regulator is set independently by trimming. Output voltages are selectable in
100mV steps within a range of 1.0V to 4.5V. Typical output noise is 47uVrms, and PSRR is 73dB at 100Hz.
The ACE520C includes two independent logic-controlled shutdown inputs and allows the output of each
regulator to be turned of independently.
The ACE520C includes high accuracy voltage reference, error amplifier, and current limit circuit and
output driver module.
The ACE520C has excellent load and line transient response and good temperature characteristics,
which can assure the stability of chip and power system. And it uses trimming technique to guarantee
output voltage accuracy within± 2%.
Features












Two low dropout voltage regulators
300mA output current for each LDO
35uA operating supply current per LDO
Low 47uVRMS output noise
Standby Mode: 0.1uA
Low 300mV dropout at 300mA load
73dB PSRR at 100Hz
Excellent Line regulation: 0.05%/V
Independent Shutdown controls
1.0V to 4.5V Factory-Preset Output
Output Current Limit
Highly Accurate: ±2% (±1% customized)
Application






Cellular phones
Cordless phones and radio communication equipment
Battery Powered equipment
Notebook and hand-ole equipment
Wireless LAN
GPS receivers
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Input voltage
Power Dissipation
SOT-23-6
Junction temperature
VIN
8
V
mW
TJ
250
125
Storage temperature
Ambient Temperature
TS
TA
O
C
- 45 to 150
O
C
-40 to 85
O
C
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.
VER 1.6
1
ACE520C
Dual 300mA High PSRR Linear Regulator
Packaging Type
SOT-23-6
SOT-23-6(D) SOT-23-6(E) Description
6
1
5
2
4
3
Function
6
6
Vout1
Output 1 pin
2
5
Vdd
Input pin
4
1
Vout2
Output 2 pin
3
3
CE2
Chip Enable pin2
5
2
GND
Ground pin
1
4
CE1
Chip Enable pin1
Ordering information
ACE520C X XXX + H
Halogen - free
Pb - free
DGM : SOT-23-6(D)
EGM : SOT-23-6(E)
Output Voltage:
B:1.5V(Output1),2.8V(Output2)
C:1.5V(Output1),3.0V(Output2)
R:3.0V(Output1),3.0V(Output2)
S:3.0V(Output1),3.3V(Output2)
D:1.5V(Output1),3.3V(Output2)
E:1.5V(Output1),4.0V(Output2)
T:3.3V(Output1),1.8V(Output2)
U:3.3V(Output1),3.3V(Output2)
F:1.2V(Output1),2.8V(Output2)
G:1.8V(Output1),2.5V(Output2)
Y:2.8V(Output1),3.3V(Output2)
a:1.2V(Output1),2.5V(Output2)
H:1.8V(Output1),2.8V(Output2)
I: 1.8V(Output1),3.0V(Output2)
b:2.8V(Output1),1.2V(Output2)
c:2.8V(Output1),1.3V(Output2)
J:1.8V(Output1),3.3V(Output2)
M:2.8V(Output1),1.8V(Output2)
d:2.5V(Output1),2.8V(Output2)
e:2.5V(Output1),3.3V(Output2)
O:2.8V(Output1),2.8V(Output2)
P:2.8V(Output1),3.0V(Output2)
g: 1.3V(Output1),2.8V(Output2)
x: 2.8V(Output1),1.5V(Output2)
Q:3.0V(Output1),2.5V(Output2)
h: 3.3V(Output1),2.8V(Output2)
VER 1.6
2
ACE520C
Dual 300mA High PSRR Linear Regulator
Block Diagram
Explanation
ACE520C series are highly accurate, dual, low noise, CMOS low dropout voltage regulators.
The output voltage for each regulator is set independently by trimming. Voltages are selectable in
100mV steps within a range of 1.2V to 4.5V. It also can be customized on command.
ACE520C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE520C has excellent load and line transient response and good temperature characteristics, which
can assure the stability of chip and power system. And it uses trimming technique to guarantee output
voltage accuracy within±2%.
Recommended Work Conditions
Item
Min
Input Voltage Range
Ambient Temperature
-40
Max
Unit
6
V
85
℃
VER 1.6
3
ACE520C
Dual 300mA High PSRR Linear Regulator
Electrical Characteristics
(Test Conditions: C1=1uF, Cout=3.3uF,TA=25℃, unless otherwise specified.)
ACE520C, For arbitrary output voltage
Parameter
Symbol
Input Voltage
VIN
Output Voltage
VOUT
Maximum Output Current
IOUT (Max.)
Dropout Voltage, Vout≧2.8V
Vdrop
Line Regulation
ΔVOUT /
ΔVIN•VOUT
Load Regulation
ΔVOUT
Supply Current
Iss
Supply Current (Srandby)
Istandby
Output Voltage Temperature
Coefficiency
ΔVOUT /
ΔT•VOUT
Conditions
Vin=Set Vout+1V
1mA≦Iout≦30mA
Vin-Vout=1V
Min
Vout
x0.98
300
Typ
Vout1
Max
Units
6
Vout
x1.02
V
V
mA
Iout=100mA
100
150
Iout=300mA
300
400
0.05
0.2
%/V
50
80
mV
35
800
uA
0.1
1.0
uA
Iout=40mA
2.8V≦Vin≦6V
Vin=Set Vout+1V
1mA≦Iout≦300mA
Vin=Set Vout+1V
Vin=Set Vout+1V
Vce=Gnd
Iout=30mA
F=100Hz
Ripple=0.5Vp-p
Vin=Set Vout+1V
Vout=0V
mV
±100
ppm/℃
70
dB
Ripple Rejection
PSRR
Short Current Limit
Llim
CE Input Voltage “H”
Vceh
1.5
Vin
V
CE Input Voltage “L”
Vcel
0
0.25
V
Output Noise
en
BW=10Hz~100kHz
47
uVrms
Discharge Resistor
Rdischarge
CE=0V, Vout=3.0V
1.5K
Ω
CE pin pull down resistor
Rcepd
CE=Vin=5V
500K
Ω
300
mA
Typical Application Circuit
Note: Input capacitor(Cin=1uF) and Output capacitor(Cout=1uF/3.3uF) are recommended in all application circuit.
VER 1.6
4
ACE520C
Dual 300mA High PSRR Linear Regulator
Electrical Characteristics
Line Regulation
(Iout=0mA)
Typical Performance Characteristics (TA=25℃)
VER 1.6
5
ACE520C
Dual 300mA High PSRR Linear Regulator
Typical Performance Characteristics (TA=25℃)
VER 1.6
6
ACE520C
Dual 300mA High PSRR Linear Regulator
Packing Information
SOT-23-6
VER 1.6
7
ACE520C
Dual 300mA High PSRR Linear Regulator
Notes
ACE does not assume any responsibility for use as critical components in life support devices or systems
without the express written approval of the president and general counsel of ACE Electronics Co., LTD.
As sued herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and shoes failure to perform when properly used in
accordance with instructions for use provided in the labeling, can be reasonably expected to result in
a significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can
be reasonably expected to cause the failure of the life support device or system, or to affect its safety
or effectiveness.
ACE Technology Co., LTD.
http://www.ace-ele.com/
VER 1.6
8
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement