ACE577C - ACE Technology Co., LTD.
ACE577C
40V 150mA Low Consumption Linear Regulator
Description
ACE577C series is a group of positive voltage output, low power consumption, low dropout voltage
regulator. It can provide 150mA output current when input / output voltage differential drops to 400mV
(Vout = 5V), and it also provides fold back short-circuit protection, thermal protection and output current
limit function. The very low power consumption of ACE577C (Iq = 2.5uA) can greatly improve natural life
of batteries.
ACE577C can provide output value in the range of 1.2V~5.0V in 0.1V steps. It also can customize on
command.
ACE577C includes high accuracy voltage reference, error amplifier, and current limit circuit and output
driver module.
ACE577C has well load transient response and good temperature characteristic, And it uses trimming
technique to guarantee output voltage accuracy within±2%.
Features

Low Power Consumption: 2.5uA(Typ.)

Maximum Output Current: 150mA

Small Dropout Voltage

[email protected] (Vout=5V)

Input Voltage Range: 3V~40V

Output Voltage Range: 1.2V~5.0V (Vout>5V customized)

Highly Accurate:±2%(±1% customized)

Output Current Limit: 180mA
Application

Battery Powered equipment

Power Management of MP3、PDA、DSC、 Mouse、PS2 Games

Reference Voltage Source Regulation after Switching Power
Absolute Maximum Ratings
Parameter
Value
Max Input Voltage
48V
Operating Junction Temperature(Tj)
125℃
Ambient Temperature(Ta)
-40 ℃-85℃
Power Dissipation ([email protected]=25℃)
Storage Temperature(Ts)
SOT-23-3
250mW
SOT-23-5
400mW
SOT-89-3
500mW
Lead Temperature & Time
-40℃ -150℃
Power Dissipation ([email protected]=25)
260℃,10S
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
Packaging Type
Pin Configuration
SOT-23-3
SOT-23-5
SOT-89-3(A)
SOT-89-3(B)
Description
1
2
1
2
GND
2
5
3
1
Vout
3
1
2
3
Vin
3
EN
4
NC
Ordering Information
ACE577CXX XX+ H
Halogen - free
Pb - free
BM: SOT-23-3
BN: SOT-23-5
AMA: SOT-89-3(A)
AMB: SOT-89-3(B)
Output Voltage: 1.2V/1.5V/……/5.0V
Typical Application
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
Recommended Work Conditions
Item
Min
Max.
Unit
Input Voltage Range
3
40
V
Ambient Temperature
-40
85
℃
Block Diagram
Explanation
ACE577C is a series of low dropout voltage and low power consumption regulator. Its application circuit is
very simple, which only needs two outside capacitors. It is composed of these modules: high accuracy
voltage reference, current limit circuit, error amplifier, output driver and power transistor.
Current Limit module can keep chip and power system away from danger when load current is more than
180mA.
ACE577C uses trimming technique to assure the accuracy of output value within±2%, at the same time,
temperature compensation is elaborately considered in this chip, which makes ACE577C’s temperature
coefficient within ±100ppm/℃。
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
Electrical Characteristics
(Test Conditions: Cin=1uF, Cout=1uF, Ta=25℃, Unless Otherwise Specified)
Parameter
Symbol
Input Voltage
Vin
Vout>1.5V
Output Voltage
Vout
Vout≤1.5V
Maximum Output Current
Input-Output Voltage Differential
3
40
V
Vout
Vout
1mA≤Iout≤30mA
Vout
Dropout
Iout=100mA, Vout
Voltage
= 5V
Vout
Iq
Output Voltage Temperature
Thermal Shutdown
Units
x0.98
Vin-Vout=1V
Vin.Vout
Coefficient
Max
Vin-Vout=1V
Iout(Max.)
Line Regulation
Quiescent Current
Min
Typ
Vout
-0.03
Vout
Load Regulation
Conditions
Iout=10mA,
X1.02
V
Vout
+0.03
150
mA
400
mV
0.2
0.3
%/V
20
40
mV
Vin=Set Vout+1V
2.5
5
uA
Iout=10mA
±100
ppm/°C
130
°C
4V≤Vin≤40V
Vin=Set Vout+1V
1mA≤Iout≤100mA
 T.Vout
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
Typical Performance Characteristics
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
Packing Information
SOT-23-3
SOT-23-5
VER 1.1
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ACE577C
40V 150mA Low Consumption Linear Regulator
Packing Information
SOT-89-3
VER 1.1
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ACE577C
40V 150mA Low Consumption 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 1.1
9
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