ACE519C

ACE519C
500mA High PSRR, Linear Regulator
Description
ACE519C series are a group of positive voltage output, low power consumption, low dropout voltage
regulators. It can provide foldback short-circuit protection and output current limit function.
ACE519C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command. ACE519C can also work under a wide input voltage ranging from 2V to 7V.
ACE519C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE519C 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: 2~7V
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.)
[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 [email protected]=3.3V
Fold-back short circuit current 250mA@ VOUT=3.3V
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 1.2
1
ACE519C
500mA High PSRR, Linear Regulator
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Max Input Voltage
VIN
7
V
Operating Junction Temperature
TJ
125
℃
500
mA
TA
-40~85
℃
mW
TS
250
250
250
-40~150
260 to 85
℃
Output Current
Ambient Temperature
Power Dissipation
SOT-23-3
SOT-23-5
SOT-89-3
Storage temperature
Lead Temperature & Time
℃
Note:
Exceed these limits to damage to the device.
Exposure to absolute maximum rating conditions may affect device reliability.
Packaging Type
SOT-23-3
SOT-23-5
3
1
5
2
1
SOT-89-3
4
2
3
1
2
SOT-23-3L SOT-23-5 SOT-89-3 Description
3
Function
2
5
3
Vout
Output pin
3
1
2
Vin
Input pin
1
2
1
VSS
Ground pin
3
CE
Chip Enable pin
4
NC
No Connection
Ordering information
ACE519C XX XX + H
Halogen - free
Pb - free
BM: SOT-23-3
BN: SOT-23-5
AM: SOT-89-3
Output Voltage: 1.0V/1.5V/1.8V…..4.5V
VER 1.2
2
ACE519C
500mA High PSRR, Linear Regulator
Block Diagram
Recommended Work Conditions
Item
Min
Max
Unit
Input Voltage Range
2
7
V
Ambient Temperature
-40
85
℃
Electrical Characteristics
ACE519C, For Arbitrary Output Voltage.(Test Conditions: Cin=1uF,Cout=1uF,TA=25°C, unless otherwise specified.)
Symbol
Parameter
Vin
Input Voltage
Output
Voltage
Vout
Iout (Max.)
1
Vdrop
Vout>1.5V
Vout<=1.5V
Maximun Output Current
Dropout Voltage,Vout≥2.8V
△Vout /
△Vin x Vout
△Vout/△Iout
Load Regulation
Iss
Supply Current
Istandby
Supply Current (Srandby)
△Vout /
△T x Vout
Output Voltage Temperature
Coefficient
Line Regulation
Conditions
Min
Vin=Set Vout+1V
1mA≤Iout≤30mA
2
Vout
x0.98
Vout
-0.03
500
Vin-Vout=1V
Typ
Max
Units
V
Vout
7
Vout
x 1.02
Vout
+0.03
V
mA
Iout=100mA
100
150
mV
Iout=300mA
300
400
mV
Iout=500mA
Iout=40mA
2.8V≤Vin≤6V
Vin=Set Vout+1V
1mA≤Iout≤500mA
Vin=Set Vout+1V
Vin=Set Vout+1V
Vce=Vss
500
800
mV
0.05
0.2
%/V
70
100
mV
35
80
uA
0.1
1.0
uA
Iout=30mA
±100
ppm/°
C
VER 1.2
3
ACE519C
500mA High PSRR, Linear Regulator
F=1KHz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
PSRR
Ripple Rejection
Ilim
Current Limit
Rcepd
CE pin pull down resistor
Vceh
CE Input Voltage “H”
1.5
Vin
V
Vcel
CE Input Voltage “L”
0
0.25
V
en
Output Noise
CE=Vin=5V
BW=10Hz~100kHz
70
dB
700
mA
5
Mohm
47
uVrms
Note: Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=500mA.
Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage.
Typical Application Circuit
ACE519C
Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit.
Explanation:
ACE519C series is a group of positive voltage output, low noise, low power consumption, low dropout
voltage regulator.
ACE519C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized
on command.
ACE519C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE519C 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 1.2
4
ACE519C
500mA High PSRR, Linear Regulator
Typical Performance Characteristics (TA=25℃)
VER 1.2
5
ACE519C
500mA High PSRR, Linear Regulator
Typical Performance Characteristics
Line Transient Response
Vout=3.3V, Iout=20mA
(Brown: Vin; Red: Vout)
Load Transient Response
Vin=5V, Vout=3.3V, Iout=1-100mA
(Green: Iout; Red: Vout)
CE Chip Enable Response
VER 1.2
6
ACE519C
500mA High PSRR, Linear Regulator
Packing Information
SOT-23-5
SOT-23-5
VER 1.2
7
ACE519C
500mA High PSRR, Linear Regulator
Packing Information
SOT-89-3
VER 1.2
8
ACE519C
500mA 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 1.2
9