ACE507A
Precise Low Dropout Voltage Regulator
Description
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.
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 1.7
1
ACE507A
Precise Low Dropout Voltage Regulator
Absolute Maximum Ratings
Operating temperature range applies unless otherwise specified.
Parameter
Symbol
Max
Unit
Input voltage
VIN
-0.3 ~ 6
V
Output Current
Power Dissipation (TA=25℃)
SOT-23-3
SOT-89-3
Operating Temperature Rang
VOUT
VSS -0.3 to VIN 0.3
V
PD
150
500
-25 ~ 80
mW
TOPR
Storage Temperature Rang
TSTG
- 40 ~125
O
C
O
C
Packaging Type
SOT-89-3
SOT-23-3
3
1
2
3
1
2
Description SOT-89-3(A) SOT-89-3(B) SOT-23-3
VSS
2
1
1
VIN
3
2
3
VOUT
1
3
2
Ordering information
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 1.7
2
ACE507A
Precise Low Dropout Voltage Regulator
Electrical Characteristics
(TA=25℃, unless otherwise specified.)
Parameter
VIN
Input Voltage
ISS
Supply Current
VOUT
Output Voltage
VIN=VOUT+1.0V, IOUT=40mA
1
IOUT
Output Current
VIN≧VOUT+1.0V
1
VDROP
Voltage
100mA
ΔVIN•VOUT
Regulations
ΔVOUT /
ΔTA•VOUT
IRRI
ISHORT
IOUT
VIN=VOUT+1.0V
IOUT=
Lin
Circuit
Min
Typ
1.8
Dropout
ΔVOUT /
ΔVOUT
Test Conditions
Test
Symbol
SOT-23-3
SOT-89-3
Max
Units
6
V
8
2
20
VOUT(T)
*0.98
VOUT(T)
50
μA
VOUT(T)
V
*1.02
300
mA
1.5V≦VOUT≦2.5V
0.51
0.75
2.6V≦VOUT≦3.3V
0.16
0.24
3.4V≦VOUT≦5.0V
0.12
0.20
0.05
0.3
%/V
20
40
mV
VOUT+0.5V≦VIN≦5.5V IOUT=80mA
V
1
Load
VIN=VOUT+1.0V
Regulations
1.0mA≦IOUT≦80mA
Output Voltage
Temperature
VIN=VOUT+1.0V, IOUT=10mA
±100
ppm/℃
Characteristics
Ripple
VIN=VOUT+1.0V, F=120Hz
Rejection
VRIP=1VRMS, IOUT=30mA
Short current
VIN=VOUT+1.0V
1
VIN=VOUT+1.0V, VOUT>2.5V
1
Maximum
Output Current
1
62
dB
30
mA
350
mA
Note 1. VOUT(T)=Specified output Voltage
Note 2. VOUT(E)=Effective output Voltage (i.e. the output voltage when “VOUT(T)+.0V” is provided at the VIN pin while maintaining a
certain IOUT value)
Note 3. VDROP={VIN1(note5)-VOUT1(note4)}
Note 4. VOUT1=A voltage equal to 98% of the output voltage whenever an amply stabilized I OUT(VOUT(T)+1.0V)is input.
Note 5. VIN1=The voltage when VOUT=VOUT1
VER 1.7
3
ACE507A
Precise Low Dropout Voltage Regulator
Test Circuit
Test Circuit 1
Test Circuit 2
Typical Application Circuit
ACE507A
Vin
Vin
Vout
Vout
GND
+
Cin
1uF
+
1uF
Cout
VER 1.7
4
ACE507A
Precise Low Dropout Voltage Regulator
Typical Performance Characteristics
3.0V Out unless otherwise specified
VIN=4.0V
CIN=1uF (Ceramic), CL=1uF (Ceramic)
TOPR=25℃
CIN=1uF (Ceramic), CL=1uF (Ceramic)
TOPR=80℃
25℃
IOUT=1mA
-25℃
=40mA
=100mA
Output Current IOUT(mA)
Figure1. Output Voltage vs. Output Current
IOUT=10mA, CL=1uF
Input Voltage VIN(V)
Figure 2. Output Voltage vs. Input Voltage
CIN=1uF (Ceramic) CL=1uF
150mA
TOPR=80℃
25℃
100mA
-25℃
50mA
30mA
10mA
Output Current IOUT(mA)
Figure 3. Dropout Voltage vs. Output Current
VOTA(V)
Figure4. Dropout Voltage vs. Output Voltage
VER 1.7
5
ACE507A
Precise Low Dropout Voltage Regulator
VIN=4VDC+1VP-PAC
IOUT=30mA CL=1μF(Ceramic)
TA(℃)
Figure 5. Output Voltage vs. Temperature
Frequency f(kHz)
Figure 6. Ripple rejection rate
VIN=4.0V
IOUT=10mA , CL=1uF
CIN=1uF (Ceramic), CL=1uF (Ceramic)
Input Voltage
Output Voltage
Time (2msed/div)
Figure 7. Input Transient Response
Output Voltage
40m
1mA
Output Current
Time (1msed/div)
Figure 8. Load Transient Response
VER 1.7
6
ACE507A
Precise Low Dropout Voltage Regulator
Packing Information
SOT-23-3
VER 1.7
7
ACE507A
Precise Low Dropout Voltage Regulator
Packing Information
SOT-89-3
VER 1.7
8
ACE507A
Precise Low Dropout Voltage 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 1.7
9