ACE555 - ACE Technology Co., LTD.

 ACE555
300mA High PSRR, Linear Regulator
Description
ACE555 series are a group of positive voltage output, low power consumption, low dropout voltage
regulators.
ACE555 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command. ACE555 can also work under a wide input voltage ranging from 1.5V to 6V.
ACE555 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE555 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 ±1%、±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: 25uA (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: ±1%、±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 1.1
1 ACE555
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 1.1 2
ACE555
300mA High PSRR, Linear Regulator Ordering information
ACE555 X 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
Reference Voltage accuracy :
A : 1%
B : 2%
Block Diagram
Recommended Work Conditions
Item
Min Max Unit
Input Voltage Range
1.5
6
V
Ambient Temperature
-40
85
℃
VER 1.1 3
ACE555
300mA High PSRR, Linear Regulator Electrical Characteristics
ACE555, For Arbitrary Output Voltage.(Test Conditions: Cin=1uF,Cout=1uF,TA=25C, unless otherwise specified.)
Symbol
Parameter
Vin
Input Voltage
Vout
Vout>1.5V
Output
Voltage
Vout<=1.5V
Max
Unit
s
1.5
6
V
Vin=Set Vout+1V
1mA≤Iout≤30mA
Vout
x0.98
Vout
-0.03
Vout
x 1.02
Vout
+0.03
V
Vin-Vout=1V
300
Conditions
Min
Typ
Vout
Iout (Max.)
Maximun Output Current
mA
Vdrop1
Dropout Voltage,Vout≥2.8V
ᇞVout /
ᇞVin x Vout
Line Regulation
ᇞVout
Load Regulation
Iss
Supply Current
Vin=Set Vout+1V
25
Istandby
Supply Current (Srandby)
Vin=Set Vout+1V
Vce=Vss
0.1
ᇞVout /
ᇞT 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
V
en
Output Noise
Iout=100mA
100
150
mV
Iout=300mA
300
400
mV
0.05
0.2
%/V
50
80
mV
Iout=40mA
2.8V≤Vin≤6V
Vin=Set Vout+1V
1mA≤Iout≤300mA
BW=10Hz~100kHz
uA
1.0
uA
mA
47
uVr
ms
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
ACE555
Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit.
VER 1.1 4
ACE555
300mA High PSRR, Linear Regulator Explanation:
ACE555 series is a group of positive voltage output, low noise, low power consumption, low dropout
voltage regulator.
ACE555 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command.
ACE555 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE555 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±1%、±2%.
Typical Performance Characteristics (TA=25℃)
VER 1.1 5
ACE555
300mA High PSRR, Linear Regulator Typical Performance Characteristics
VER 1.1 6
ACE555
300mA High PSRR, Linear Regulator VER 1.1 7
ACE555
300mA High PSRR, Linear Regulator Packing Information
SC-70-5
SOT-23-3L
VER 1.1 8
ACE555
300mA High PSRR, Linear Regulator Packing Information
SOT-23-5
DFN1*1-4
VER 1.1 9
ACE555
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 1.1 10