ACE501
Technology
Description
250mA CMOS Low Dropout Voltage Low consumption Regulator
ACE501 series is a group of positive voltage output, low power consumption, low dropout voltage, three
terminal regulator. It can provide 250mA output current when input / output voltage differential drops to
400mV (Vin=4.0V. Vout=3.0V).The very low power consumption of ACE501 (lq=3.0uA) can greatly
improve natural life of batteries.
ACE501 can provide output value in the range of 1.2V~6.0V in 0.1V steps. It also can customized on
command.
ACE501 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver
module.
ACE501 has well load transient response and good temperature characteristic, which can assure the
stability of chip and power system, And it uses trimming technique to guarantee output voltage accuracy
within
±2%.
ACE501 is available in SOT-89-3. SOT-23-3 package which is lead free. It also can available in these
packages with lead.
Features
•
•
•
•
•
•
•
•
•
•
•
Low Power Consumption: 1.5uA (Typ)
Maximum Output Current: 250mA
Small Dropout Voltage 170mV@100mA (Vout=3.0V) / 400mV@250mA (Vout=3.0V)
Input Voltage Range: 1.5V~10V
Output Voltage Range: 1.2V~6.0V (customized on command in 0.1V steps)
High Accurate:
±2%
(±1% customized)e
Output Current Limit
Application
Battery Powered equipment
Power Management of MP3. PDA. DSC. Mouse. PS2 Games
Reference Voltage Source
Regulation after Switching Power
Typical Performance Characteristic:
Output Voltage vs. Output Current (Vout=1.5V)
Output Current (mA)
VER 1.2
1
Technology
Absolute Maximum Ratings
Parameter
Input supply voltage
Power Dissipation
SOT-23-3
SOT-89-3
Junction temperature
Storage temperature
Ambient Temperature
Symbol
V
IN
ACE501
250mA CMOS Low Dropout Voltage Low consumption Regulator
Max
10
0.15
0.5
125
- 45 to 150
-40 ~85
Unit
V
W
O
O
T
J
T
S
T
A
C
C
O
C
Packaging Type
SOT-89-3
SOT-23-3
3
1
2
3
1
2
Pin
V
SS
V
IN
V
OUT
SOT-89-3
1
2
3
SOT-23-3
1
3
2
Function
Ground
Supply Voltage Input
Output Voltage
Ordering information
Selection Guide
ACE501 XX XX + H
Halogen - free
Pb - free
AM : SOT-89-3
BM: SOT-23-3
Output Voltage：
1.2V/2.1V…..6.0V
VER 1.2
2
Technology
Block Diagram
ACE501
250mA CMOS Low Dropout Voltage Low consumption Regulator
Recommended Work Conditions
Item
Input Voltage Range
Ambient Temperature
Min Recommended
-40
Max Unit
8
V
+125
℃
Electrical Characteristics
(Test Conditions: Cin=1uF, Cout=1uF,T
A
=25℃, unless otherwise specified.)
ACE501-1.5V
Parameter
Input Voltage
Output Voltage
Maximum Output Current
Input-Output Voltage
Differential
Line Regulation
Load Regulation
Quiescent Current
Output Voltage Temperature
Coefficient
Symbol
V
IN
V
OUT
I
OUT
(Max.)
Dropout
Voltage
ΔV
OUT
/
ΔV
IN
‧V
OUT
ΔV
OUT
Iq
ΔV
OUT
/
ΔT‧V
OUT
Conditions
Min
1.47
250
Typ Max
8
1.5 1.53
V
IN
=2.5V, V
OUT
>1.47
I
OUT
=100mA
I
OUT
=40mA
1.6V≦V
IN
≦8A
V
IN
=2.5V
1mA≦I
OUT
≦100mA
V
IN
=2.5V
I
OUT
=10mA
Units
V
V
mA
mV
%/V
mV
uA
ppm/℃
270
0.2
20
1.5
50
400
0.3
40
3.0
VER 1.2
3
Technology
ACE501-3.0
Parameter
Input Voltage
Output Voltage
Maximum Output Current
Input-Output Voltage
Differential
Line Regulation
Load Regulation
Quiescent Current
Output Voltage Temperature
Coefficient
ACE501
250mA CMOS Low Dropout Voltage Low consumption Regulator
Symbol
V
IN
V
OUT
I
OUT
(Max.)
Dropout
Voltage
ΔV
OUT
/
ΔV
IN
‧V
OUT
ΔV
OUT
Iq
ΔV
OUT
/
ΔT‧V
OUT
Conditions
Min
2.94
250
Typ Max
8
3.0 3.06
170
320
0.2
20
1.5
50
300
500
0.3
40
V
IN
=4V, V
OUT
>2.94
I
OUT
=100mA
I
OUT
=200mA
I
OUT
=40mA
3.2V≦V
IN
≦8A
V
IN
=4.0V
1mA≦I
OUT
≦100mA
V
IN
=4V
I
OUT
=10mA
Units
V
V
mA
mV
%/V
mV
uA
ppm/℃
Typical Application Circuit
ACE501
Vin
+
Cin
1uF
Vin
GND
+
1uF
Cout
Vout
Vout
Application hints:
Note 1:Input capacitor (Cin=1uF) is recommended in all application circuit. Tantalum capacitor is recommended.
Note 2:Output capacitor (Cout=1uF) is recommended in all application to assure the stability of circuit. Tantalum
capacitor is recommended.
Explanation：
ACE501 is a series of low dropout voltage and low power consumption three pins 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 250mA.
ACE501 uses trimming technique to assure the accuracy of output value within±2%, at the same time,
temperature compensated is elaborately considered in this chip, which makes ACE501’s temperature
coefficient within 50ppm/℃.
VER 1.2
4
Technology
Typical Performance Characteristics
1. Load regulation
ACE501
250mA CMOS Low Dropout Voltage Low consumption Regulator
2. Line Regulation
3. Dropout Voltage
VER 1.2
5
京公网安备 11010802033920号
EEWORLD
