ACE ACE50940BM+

 Technology
ACE509
Low noise, fast response 500mA LDO regulator
Description
ACE509 series is a group of positive voltage output, low power consumption, low dropout voltage
regulator.
ACE509 can provide output value in the range of 1.2V~4.5V every 0.1V step. It also can be customized
on command.
ACE509 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module with discharge capability.
ACE509 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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Low Power Consumption: 75uA(Typ.)
Low output noise (47uVRMS)
Standby 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 and discharge circuit
Output Voltage Range: 1.2V~4.5V (customized on command every 0.1V step)
Highly Accurate: ±2% (±1% customized)
Output Current Limit
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 Reference Voltage Source
Regulation after Switching Power Typical Performance Characteristic:
ACE509-2.8V Output
I load (mA)
VER 1.2
1 Technology
ACE509
Low noise, fast response 500mA LDO regulator
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Input Voltage
10
V
Output Current
Power Dissipation
SOT-23-5
SOT-23-3
SOT-89-3
TO-92
Junction temperature
Storage temperature
500
mA
TJ
TS
250
200
500
350
125
- 45 to 150
mW
O
O
C
C
Packaging Type
SOT-23-5
5
1
Pin
VOUT VDD VSS CE NC SOT-23-3
4
2
3
SOT-23-5
5
1
2
3
4
SOT-89-3
TO-92
3
1
SOT-23-3
2
3
1
2
1
SOT-89-3(A)
1
3
2
2
3
SOT-89-3(B)
3
2
1
123
TO-92
3
1
2
Function
Output pin
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Ordering information
Selection Guide
ACE509 XX XX + H
Halogen - free
Pb - free
BN: SOT-23-5
BM: SOT-23-3
AMA: SOT-89-3A
AMB: SOT-89-3B
EP: TO-92
Output Voltage: 1.2V/1.5V…..4.5V
VER 1.2 2
Technology
ACE509
Low noise, fast response 500mA LDO regulator
Block Diagram
Recommended Work Conditions
Item
Input Voltage Range
Ambient Temperature
Min Recommended Max Unit
8
V
-40
85
℃
Electrical Characteristics
(Test Conditions: Cin=1uF, Cout=3.4uF,TA=25℃, unless otherwise specified.)
ACE509, for arbitrary output voltage
Symbol
Parameter
Vin
Input Voltage
Conditions
Min
Typ
Vout1
Vout
Output Voltage
Vin=Set Vout+1V
1mA≤Iout≤30mA
Vout
x0.98
Iout (Max.)
Maximun Output
Current
Vin-Vout=1V
500
Vdrop
1
Dropout
Voltage,Vout≥2.8V
△Vout/△Vin·Vout
Line Regulation
△Vout/△Iout
Load Regulation
Iss
Supply Current
Supply Current
(Srandby)
Output Voltage
Temperature
Coefficiency
Istandby
△Vout/△T·Vout
Max
8
Vout
X1.02
Units
V
V
mA
Iout=100mA
88
120
mV
Iout=300mA
Iout=500mA
270
460
350
600
mV
mV
Iout=40mA
2.8V≤Vin≤8V
0.05
0.2
%/V
20
40
mV
75
90
uA
0.1
1.0
uA
Vin=Set Vout+1V
1mA≤Iout≤500mA
Vin=Set Vout+1V
Vin=Set Vout+1V
Vce=GND
Iout=30mA
±100
ppm/°C
VER 1.2 3
Technology
Low noise, fast response 500mA LDO regulator
PSRR
Ripple Rejection
Ilim
Short Current Limit
CE
Pull
down
Resistance
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
Rpd
Vceh
Vcel
en
ACE509
F=100Hz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
Vout=0V
2.0
65
dB
200
mA
5.0
1.5
0
BW=10Hz~100kHz
47
10.0
MΩ
Vin
0.25
V
V
uVrms
Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA or 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
CE
ACE509
In
VDD
VOUT
Out
+
Cap
GND
+
Cap
Application hints:
Note1:Input capacitor (Cin=1uF) is recommended in all application circuit.
Note2:Output capacitor (Cout=3.3uF/4.7uF) is recommended in all application to assure the stability of
circuit.
Explanation:
ACE509 series is a group of positive voltage output, low noise, low power consumption, low dropout
voltage regulator.
ACE509 can provide output value in the range of 1.2V~4.5V every 0.1V step. It also can be customized
on command.
ACE509 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE509 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
Technology
ACE509
Low noise, fast response 500mA LDO regulator
Typical Performance Characteristics
1.Output Voltage vs. Output Current
(with output short protection)
I load(mA)
3.Droput Voltage vs. Output Current
I load(mA)
2.Output Voltage vs. Input Voltage
Vin(V)
4.Ripple rejection vs. Frequency
Freq(kHz)
5.Line transient response
VER 1.2 5
Technology
ACE509
Low noise, fast response 500mA LDO regulator
6.Load transient response
7.Startup response
8.Shutdown response
VER 1.2 6
Technology
ACE509
Low noise, fast response 500mA LDO regulator
Packing Information
SOT-23-5
VER 1.2 7
Technology
ACE509
Low noise, fast response 500mA LDO regulator
Packing Information
SOT-23-3
VER 1.2 8
Technology
ACE509
Low noise, fast response 500mA LDO regulator
Packing Information
SOT-89-3
VER 1.2 9
Technology
ACE509
Low noise, fast response 500mA LDO regulator
Packing Information
TO-92
VER 1.2 10
Technology
ACE509
Low noise, fast response 500mA LDO 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 11