AP2132A
PEAK 3A CMOS LDO REGULATOR WITH ENABLE AND POWER GOOD
Description
The AP2132A series are positive voltage regulator ICs fabricated by
CMOS process. The ICs consist of a voltage reference, an error
amplifier, a power transistor, a resistor network for setting output
voltage, a current limit circuit for current protection, and a chip enable
circuit.
The AP2132A have features of large current, low dropout voltage,
high output voltage accuracy and low input voltage. The AP2132A
provide a power good (PG) signal to indicate if the voltage level of
V
OUT
reaches 92% of its rating value. And it operates with a V
IN
as
low as 1.4V and V
CTRL
voltage 5V with output voltage programmable
as low as 0.6V.
The AP2132A are available in 1.2V, 1.5V, 1.8V, 2.5V fixed output
voltage versions and adjustable output voltage version. The fixed
versions integrate the adjust resistors. It is also available in an
adjustable version, which can set the output voltage with external
resistor. If the pin of adjustable output voltage is to ground, it will
switch to fixed output voltage.
The AP2132A series are available in PSOP-8 package.
Pin Assignments
(Top View)
PG
EN
VIN
VCTRL
1
2
3
4
8
7
6
5
GND
ADJ
VOUT
NC
PSOP-8
Applications
Notebook
Features
Adjustable Output: 0.6V to 3.0V
Low Dropout Voltage: 300mV at I
OUT
= 2A, V
OUT
= 1.2V
Over Current and Over Temperature Protection
Enable Pin
PSOP-8 Package with Thermal Pad
Maximum Output Current: 3A (Peak)
High Output Voltage Accuracy: 2%
V
OUT
Power Good Signal
Excellent Line/Load Regulation
AP2132A
Document number: DS41214 Rev. 1 - 2
1 of 11
www.diodes.com
July 2018
© Diodes Incorporated
AP2132A
Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
Pin Name
PG
EN
VIN
VCTRL
NC
VOUT
ADJ
GND
Function
Assert high once V
OUT
reaches 92% of its rating voltage
Enable input
Input voltage
Input voltage for controlling circuit
Not connected
Regulated output voltage
Adjust output: when connected to ground, the output voltage is set by internal resistors; when external
feedback resistors are connected, the output voltage will be V
OUT
= 0.6V×(R1+R2)/R2.
Ground
Functional Block Diagram
3
OCP
OTP
VREF
Error Amp
6
VCTRL
4
Bias
PGood
1
VOUT
PG
VIN
EN
2
Enable
7
Switch
ADJ
8
GND
AP2132A
Document number: DS41214 Rev. 1 - 2
3 of 11
www.diodes.com
July 2018
© Diodes Incorporated
AP2132A
Absolute Maximum Ratings
(Note 1)
Symbol
V
IN
V
CTRL
V
EN
JA
T
J
T
STG
T
LEAD
—
—
Note 1:
Parameter
Input Voltage
Input Voltage for Controlling Circuit
Enable Input Voltage
Thermal Resistance (No Heatsink)
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
ESD (Machine Model)
ESD (Human Body Model)
Rating
6.0
-0.3 to 6.0
130
+150
-65 to +150
+260
200
2000
Unit
V
V
°
C/W
°
C
°
C
°
C
V
V
Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
V
IN
V
CTRL
T
A
Input Voltage
Input Voltage for Controlling Circuit
Operating Ambient Temperature Range
Parameter
Min
1.4
4.5
-40
Max
5.5
5.5
+85
Unit
V
V
°
C
AP2132A
Document number: DS41214 Rev. 1 - 2
4 of 11
www.diodes.com
July 2018
© Diodes Incorporated
AP2132A
Electrical Characteristics
(@V
IN
= V
OUT
+0.5V, V
CTRL
= V
EN
= 5V, T
A
= +25° C
IN
= C
OUT
= 10µF, C
CTRL
= 1µF, I
OUT
= 10mA,
Bold
C,
typeface applies over -40° ≤ T
A
≤ +85° unless otherwise specified.)
C
C,
Symbol
V
OUT
V
IN
I
LIMIT
V
RLOAD
V
RLINE
Parameter
Output Voltage
Input Voltage
Current Limit
Load Regulation
Line Regulation
Conditions
V
IN
= V
OUT
+0.5V, I
OUT
= 10mA
—
V
IN
–V
OUT
= 1V
V
IN
= V
OUT
+0.5V, 10mA ≤ I
OUT
≤ 2A
V
OUT
+0.5V ≤ V
IN
≤ 5V , I
OUT
= 10mA
I
OUT
= 500mA
Min
V
OUT
×
98%
1.4
3
—
—
—
—
—
—
—
—
—
—
—
0.588
1.5
—
—
—
—
—
—
—
Typ
—
—
—
10
2
80
150
300
300
250
0.1
60
60
±100
0.6
—
—
+165
+20
92
7
200
40
Max
V
OUT
×
102%
5.5
—
—
—
120
200
450
—
500
1.0
—
—
—
0.612
—
0.4
—
—
—
—
—
—
Unit
V
V
A
mV
mV
mV
mV
mV
µA
µA
µA
dB
dB
ppm/°
C
V
V
V
°
C
°
C
%
%
mV
°
C/W
V
DROP
Dropout Voltage
I
OUT
= 1A
I
OUT
= 2A
I
SUPPLY
I
CTRLH
Supply Current
V
IN
= V
OUT
+0.5V, I
OUT
= 0mA
V
IN
= V
OUT
+0.5V, V
CTRL
= V
EN
= 5V
V
CTRL
Current
I
CTRLL
Power Supply
Rejection Ratio
Output Voltage
Temperature Coefficient
Reference Voltage
Enable “High” Voltage
Enable “Low” Voltage
Thermal Shutdown
Thermal Shutdown Hysteresis
V
OUT
Power Good Voltage
V
PG
Hysteresis
Adjust Pin Threshold
Thermal Resistance
(Junction to Case)
V
IN
= V
OUT
+0.5V, V
CTRL
=5V, V
EN
= 0V
Ripple 0.5Vp-p,
V
IN
= V
OUT
+1V
f = 100Hz
f = 1kHz
PSRR
∆V
OUT
V
OUT
x
∆T
V
REF
—
—
OTSD
—
V
THPG
—
—
JC
I
OUT
= 10mA, -40° ≤ T
A
≤ +85°
C
C
Adjust Short to V
OUT
Enable Input Voltage “High”
Enable Input Voltage “Low”
—
—
—
—
—
PSOP-8
AP2132A
Document number: DS41214 Rev. 1 - 2
5 of 11
www.diodes.com
July 2018
© Diodes Incorporated
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