ACE ACE525C

ACE525C
300mA High PSRR, Linear Regulator
Description
ACE525C series are a group of positive voltage output, low power consumption, low dropout voltage
regulators.
ACE525C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command. ACE525C can also work under a wide input voltage ranging from 1.5V to 6V.
ACE525C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE525C 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
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Input voltage range: 1.5~6V
Output voltage range: 1.0V~4.5V (customized on command every 0.1V step)
Low power consumption: 35uA (Typ.)
Low output noise (47uVRMS)
Shutdown mode: 0.1uA
Low dropout voltage: [email protected] (Typ.)
High ripple rejection:[email protected] (Typ.)
Low temperature coefficient: ±100ppm/C
Excellent line regulation: 0.05%/V
Build-in chip enable circuit
Highly accurate: ±2%
Output current limit
Fold-back output short circuit protection
Application
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Power source for cellular phones and various kind of PCSs
Battery Powered equipment
Power Management of MP3, PDA, DSC, Mouse, PS2 Games
Voltage Reference
Regulation after Switching Power
Typical Performance Characteristic:
VER 1.4
1
ACE525C
300mA High PSRR, Linear Regulator
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Max Input voltage
Power Dissipation
SC-70-5
SOT-23-3L
SOT-23-5
DFN1*1-4
Junction temperature
VIN
8
V
TJ
250
250
250
600
125
Storage temperature
TS
- 45 to 150
Output Current
mW
300
Ambient Temperature
TA
O
C
O
C
mA
O
-40 to 85
C
Note: Heat Sink Area of PCB for DFN1x1-4 is recommended at least 2.5mmx4mm.
Exceed these limits to damage to the device.
Exposure to absolute maximum rating conditions may affect device reliability.
Packaging Type
SC-70-5
5
1
SOT-23-3L
4
2
3
3
SOT-23-5
5
1
2
1
DFN1*1-4
4
2
3
4
3
1
2 (Thermal Pad: Vss)
SC-70-5 SOT-23-3L SOT-23-5 DFN1*1-4 Description
Function
5
2
5
1
Vout
Output pin
1
3
1
4
Vin
Input pin
2
1
2
2
VSS
Ground pin
3
3
3
CE
Chip Enable pin
4
4
NC
No Connection
VER 1.4
2
ACE525C
300mA High PSRR, Linear Regulator
Ordering information
ACE525C XX XX + H
Halogen - free
Pb - free
HN: SC-70-5
BM: SOT-23-3L
BN: SOT-23-5
IN: DFN1*1-4
Output Voltage: 1.0V/1.5V/1.8V…..4.5V
Block Diagram
Recommended Work Conditions
Item
Min Max Unit
Input Voltage Range
1.5
6
V
Ambient Temperature
-40
85
℃
Electrical Characteristics
ACE525C, For Arbitrary Output Voltage.(Test Conditions: Cin=1uF,Cout=1uF,T A=25C, unless otherwise specified.)
Symbol
Parameter
Vin
Input Voltage
Vout
Iout (Max.)
Output
Voltage
Vout>1.5V
Vout<=1.5V
Maximun Output Current
Conditions
Min
Vin=Set Vout+1V
1mA≤Iout≤30mA
1.5
Vout
x0.98
Vout
-0.03
300
Vin-Vout=1V
Typ
Max
Vout
6
Vout
x 1.02
Vout
+0.03
Unit
s
V
V
mA
VER 1.4
3
ACE525C
300mA High PSRR, Linear Regulator
Iout=100mA
100
150
mV
Iout=300mA
Iout=40mA
2.8V≤Vin≤6V
Vin=Set Vout+1V
1mA≤Iout≤300mA
Vin=Set Vout+1V
Vin=Set Vout+1V
Vce=Vss
300
400
mV
0.05
0.2
%/V
50
80
mV
35
80
uA
0.1
1.0
uA
Vdrop1
Dropout Voltage,Vout≥2.8V
△Vout /
△Vin x Vout
Line Regulation
△Vout /△Iout
Load Regulation
Iss
Supply Current
Istandby
Supply Current (Srandby)
△Vout /
△T x Vout
Output Voltage Temperature
Coefficient
Iout=30mA
±100
ppm
/C
PSRR
Ripple Rejection
F=1KHz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
70
dB
Ilim
Current Limit
300
Vceh
CE Input Voltage “H”
1.5
Vin
V
Vcel
CE Input Voltage “L”
0
0.25
en
Output Noise
V
uVr
ms
BW=10Hz~100kHz
mA
47
Note: Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA.
Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage.
Typical Application Circuit
ACE525C
Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit.
Explanation:
ACE525C series is a group of positive voltage output, low noise, low power consumption, low dropout
voltage regulator.
ACE525C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command.
ACE525C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE525C 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%.
VER 1.4
4
ACE525C
300mA High PSRR, Linear Regulator
Typical Performance Characteristics (TA=25℃)
VER 1.4
5
ACE525C
300mA High PSRR, Linear Regulator
Typical Performance Characteristics
VER 1.4
6
ACE525C
300mA High PSRR, Linear Regulator
Packing Information
SC-70-5
SOT-23-3L
VER 1.4
7
ACE525C
300mA High PSRR, Linear Regulator
Packing Information
SOT-23-5
DFN1*1-4
VER 1.4
8
ACE525C
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 1.4
9