Technology
Description
ACE507A
Precise Low Dropout Voltage Regulator
The ACE507A series are precise, low power consumption, positive voltage regulators manufactured
using CMOS and laser trimming technologies. The series provides large currents with a significantly small
dropout voltage. The ACE507A consists of a current limit circuit, a driver transistor a precision reference
voltage and an error correction circuit. The series is compatible with low ESR ceramic capacitors. The
current limiter’s foldback circuit also operates as a short protect for the output current limiter and the
output pin. Output voltage can be set internally by laser trimming technologies. It is selectable in 100mV
Increments with a range of 1.2V to 5.0V. SOT-89-3 and SOT-23-3 packages are available.
Features
•
•
•
•
•
•
•
•
•
•
•
Output Voltage selectable in 100mV steps (1.2V to 5.0V)
Highly Accurate
Low Dropout Voltage
Low Power Consumption
Internal current limiting and short protecting
Small packages
Application
Battery Powered equipment
Cameras, Video cameras
Reference Voltage Source
Mobile phones
Communication tools
Functional Block Diagram
VER 1.6
1
Technology
Absolute Maximum Ratings
ACE507A
Precise Low Dropout Voltage Regulator
Operating temperature range applies unless otherwise specified.
Parameter
Input voltage
Output Current
Power Dissipation (T
A
=25℃)
SOT-23-3
SOT-89-3
Operating Temperature Rang
Storage Temperature Rang
Symbol
V
IN
V
OUT
P
D
T
OPR
T
STG
Max
-0.3 ~ 6
V
SS
-0.3 to V
IN
0.3
150
500
-25 ~ 80
- 40 to 125
Unit
V
V
mW
O
C
O
C
Packaging Type
SOT-89-3
SOT-23-3
3
1
2
3
1
2
Pin SOT-89-3(A) SOT-89-3(B) SOT-23-3
V
SS
2
1
1
V
IN
3
2
3
V
OUT
1
3
2
Ordering information
Selection Guide
ACE507A XX XX + H
Halogen - free
Pb - free
AMA : SOT-89-3
AMB: SOT-89-3
BM: SOT-23-3
Output Voltage：
1.5V/3.3V…..
VER 1.6
2
Technology
Electrical Characteristics
(T
A
=25℃, unless otherwise specified.)
ACE507A
Precise Low Dropout Voltage Regulator
Symbol
V
IN
I
SS
V
OUT
I
OUT
V
DROP
ΔV
OUT
/
ΔV
IN
•V
OU
T
Parameter
Input Voltage
Supply
Current
Output
Voltage
Output Current
Dropout
Voltage
Lin
Regulations
Load
Regulations
Output
Voltage
Temperature
Characteristi
cs
Ripple
Rejection
Short current
Maximum
Output
Current
Test Conditions
Test
Circui
t
Min
1.8
Typ
Max
6
Units
V
μA
V
mA
V
IN
=V
OUT
+1.0V
SOT-23-3
SOT-89-3
2
1
1
V
OUT
(T)
*0.98
300
8
20
V
OUT
(T)
50
V
OUT
(T)
*1.02
0.75
0.24
0.20
0.3
V
IN
=V
OUT
+1.0V, I
OUT
=40mA
V
IN
≧V
OUT
+1.0V
I
OUT
=
100mA
1.5V≦V
OUT
≦2.5V
2.6V≦V
OUT
≦3.3V
3.4V≦V
OUT
≦5.0V
0.51
0.16
0.12
0.05
1
V
V
OUT
+0.5V≦V
IN
≦5.5V
I
OUT
=80mA
V
IN
=V
OUT
+1.0V
1.0mA≦I
OUT
≦80mA
%/V
ΔV
OUT
20
40
mV
ΔV
OUT
/
ΔT
A
•V
OU
T
V
IN
=V
OUT
+1.0V, I
OUT
=10mA
±100
ppm/
℃
IRRI
I
SHORT
I
OUT
V
IN
=V
OUT
+1.0V, F=120Hz
V
RIP
=1V
RMS,
I
OUT
=30mA
V
IN
=V
OUT
+1.0V
V
IN
=V
OUT
+1.0V, V
OUT
>2.5V
1
1
1
62
30
350
dB
mA
mA
Note 1. V
OUT
(T)=Specified output Voltage
Note 2. V
OUT
(E)=Effective output Voltage (i.e. the output voltage when “V
OUT
(T)+.0V” is provided at the V
IN
pin while maintaining a
certain I
OUT
value)
Note 3. V
DROP
={V
IN1
(note5)-V
OUT1
(note4)}
Note 4. V
OUT1
=A voltage equal to 98% of the output voltage whenever an amply stabilized I
OUT
(V
OUT
(T)+1.0V)is input.
Note 5. V
IN1
=The voltage when V
OUT
=V
OUT1
VER 1.6
3
Technology
Test Circuit
ACE507A
Precise Low Dropout Voltage Regulator
Test Circuit 1
Test Circuit 2
Typical Application Circuit
ACE507A
Vin
+
Cin
1uF
Vin
GND
+
1uF
Cout
Vout
Vout
VER 1.6
4
Technology
Typical Performance Characteristics
3.0V Out unless otherwise specified
VIN=4.0V
CIN=1uF (Ceramic), CL=1uF (Ceramic)
ACE507A
Precise Low Dropout Voltage Regulator
TOPR=25℃
CIN=1uF (Ceramic), CL=1uF (Ceramic)
TOPR=80℃
25℃
I
OUT
=1mA
=40mA
=100mA
-
25℃
Output Current IOUT(mA)
Figure1. Output Voltage vs. Output Current
Input Voltage V
IN
(V)
Figure 2. Output Voltage vs. Input Voltage
IOUT=10mA, CL=1uF
CIN=1uF (Ceramic) CL=1uF
150mA
TOPR=80℃
25℃
-25℃
50mA
30mA
10mA
100mA
Output Current I
OUT
(mA)
Figure 3. Dropout Voltage vs. Output Current
V
OTA
(V)
Figure4. Dropout Voltage vs. Output Voltage
VER 1.6
5
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