AP2132B
2A CMOS LDO REGULATOR
Description
Pin Assignments
The AP2132B 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.
(Top View)
The AP2132B series have features of large current, low dropout
voltage, high output voltage accuracy, low input voltage. The
AP2132B provides a power good (PG) signal to indicate if the voltage
level of VOUT reaches 92% of its rating value. And it operates with VIN
as low as 1.4V and VCTRL voltage 5V with output voltage
programmable as low as 0.8V.
The AP2132B 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.
PG
1
8
GND
EN
2
7
ADJ
VIN
3
6
VOUT
VCTRL
4
5
NC
PSOP-8
Applications
Notebook
AP2132B series are available in PSOP-8 package.
Features
Adjustable Output: 0.8V to 3.0V
Low Dropout Voltage: 300mV@ IOUT = 2A, VOUT = 1.2V
Over Current and Over Temperature Protection
Enable Pin
PSOP-8 Package with Thermal Pad
Maximum Output Current: 2A
High Output Voltage Accuracy: 2%
VOUT Power Good Signal
Excellent Line/Load Regulation
AP2132B
Document number: DS41215 Rev. 1 - 2
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AP2132B
Typical Applications Circuit
10kW
VCTRL
VCTRL
PG
VIN
EN
VIN
VIN
GND
VOUT
VOUT
R1
CCTRL
1mF
C1
10mF
ADJ
C2
10mF
R2
VOUT =
0.8 (R1+R2)
R2
For Adjustable Version
10kW
VCTRL
VCTRL
PG
VIN
EN
VIN
VIN
GND
VOUT
VOUT
ADJ
CCTRL
1mF
C1
10mF
C2
10mF
For Fixed Version
AP2132B
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AP2132B
Pin Descriptions
Pin Number
Pin Name
Function
1
PG
Assert high once VOUT reaches 92% of its rating voltage
2
EN
Enable input
3
VIN
Input voltage
4
VCTRL
5
NC
6
VOUT
7
ADJ
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 = 0.8(R1+R2)/R2.
8
GND
Ground
Input voltage for controlling circuit
Not connected
Regulated output voltage
Functional Block Diagram
VIN
3
OCP
OTP
VREF
Error Amp
6
VCTRL
EN
4
2
Bias
PGood
1
VOUT
PG
Enable
7
Switch
8
AP2132B
Document number: DS41215 Rev. 1 - 2
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ADJ
GND
July 2018
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AP2132B
Absolute Maximum Ratings (Note 1)
Symbol
VIN
VCTRL
Notes:
Parameter
Rating
Unit
6.0
V
-0.3 to 6.0
V
Input Voltage
Input Voltage for Controlling Circuit
VEN
Enable Input Voltage
IOUT
Output Current
2.5
A
JA
Thermal Resistance (Note 2)
53
°C/W
TJ
Operating Junction Temperature
+150
°C
-65 to +150
°C
TSTG
Storage Temperature Range
TLEAD
Lead Temperature (Soldering, 10sec)
+260
°C
—
ESD (Machine Model)
200
V
—
ESD (Human Body Model)
2000
V
1. 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.
2. JA is measured with the component mounted on 2-Layer FR-4 PCB board with 1.0cm*1.0cm thermal sink pad in free air.
Recommended Operating Conditions
Symbol
VIN
VCTRL
TA
Parameter
Min
Max
Unit
Input Voltage
1.4
5.5
V
Input Voltage for Controlling Circuit
4.5
5.5
V
Operating Ambient Temperature Range
-40
+85
°C
AP2132B
Document number: DS41215 Rev. 1 - 2
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AP2132B
Electrical Characteristics
(@VIN = VOUT+0.5V, VCTRL = VEN = 5V, TA = +25°C, CIN = COUT = 10µF, CCTRL = 1µF, IOUT = 10mA,
unless otherwise specified.)
Symbol
VOUT
Parameter
Conditions
Output Voltage
VIN = VOUT+0.5V, IOUT = 10mA
VIN
Input Voltage
—
ILIMIT
Current Limit
VRLOAD
VRLINE
VDROP
ISUPPLY
98%
—
Max
VOUT ×
102%
Unit
V
—
5.5
V
VIN–VOUT = 1V
3
—
—
A
Load Regulation
VIN = VOUT+0.5V, 10mA ≤ IOUT ≤ 2A
—
10
—
mV
Line Regulation
VOUT+0.5V ≤ VIN ≤ 5V, IOUT = 10mA
—
2
—
mV
IOUT = 500mA
—
80
120
mV
IOUT = 1A
—
150
200
mV
IOUT = 2A
—
300
450
mV
VIN = VOUT+0.5V, IOUT = 0mA
—
300
—
µA
VIN = VOUT+0.5V, VCTRL = VEN = 5V
—
250
500
µA
—
0.1
1.0
µA
f = 100Hz
—
60
—
dB
f = 1kHz
—
60
—
dB
Dropout Voltage
Supply Current
VCTRL Current
ICTRLL
∆VOUT
VOUT x ∆T
VOUT ×
Typ
1.4
ICTRLH
PSRR
Min
VIN = VOUT+0.5V, VCTRL = 5V, VEN =
0V
Power Supply Rejection Ratio
Ripple 0.5Vp-p,
VIN = VOUT+1V
Output Voltage
Temperature Coefficient
IOUT = 10mA, -40°C ≤ TA ≤ +85°C
—
±100
—
ppm/°C
Short Circuit Current
—
—
0.3
0.5
A
Reference Voltage
Adjust Short to VOUT
0.784
0.8
0.816
V
—
Enable “High” Voltage
Enable Input Voltage “High”
1.2
—
—
V
—
Enable “Low” Voltage
Enable Input Voltage “Low”
—
—
0.4
V
Thermal Shutdown
—
—
+165
—
°C
Thermal Shutdown Hysteresis
—
—
+20
—
°C
VOUT Power Good Voltage
—
—
92
—
%
—
VPG Hysteresis
—
—
7
—
%
—
Adjust Pin Threshold
—
—
200
—
mV
JC
Thermal Resistance
(Junction to Case)
PSOP-8
—
29
—
°C/W
ISHORT
VREF
OTSD
—
VTHPG
AP2132B
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AP2132B
Performance Characteristics
Supply Current vs. Output Current
Supply Current vs. Case Temperature
0.40
0.40
AP2132B-1.2V
VIN=2.2V
VCTRL=VEN=5V
0.38
0.34
Supply Current (mA)
Supply Current (mA)
0.36
0.32
0.30
0.28
0.26
o
TC=-40 C
0.24
0.36
VCTRL=VEN=5V
0.34
No Load
0.32
0.30
0.28
0.26
0.24
o
TC=+25 C
0.22
AP2132B-1.2V
VIN=VOUT+1V
0.38
0.22
o
TC=+85 C
0.20
0.20
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-25
2.0
0
25
50
75
100
125
o
Case Temperature ( C)
Output Current (A)
Enable High/Low Voltage vs. Case Temperature
Supply Current vs. Input Voltage
1.5
0.50
1.4
Enable High Voltage
Enable Low Voltage
1.3
1.2
0.40
1.1
1.0
Supply Current (mA)
Enable High/Low Voltage (V)
AP2132B-1.2V
No Load
VCTRL=VEN=5V
0.45
0.9
0.8
0.7
0.6
0.5
0.3
AP2132B-1.2V
VCTRL=5V
0.2
VIN=2.2V
0.4
0.35
0.30
0.25
0.20
o
0.15
TC=-40 C
0.10
TC=+25 C
o
o
TC=+85 C
0.05
0.1
0.00
0.0
-25
0
25
50
75
100
125
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
o
Case Temperature ( C)
Input Voltage (V)
Output Voltage vs. Case Temperature
Output Voltage vs. Output Current
1.5
1.30
1.28
AP2132B-1.2V
VIN=2.2V
1.26
VCTRL=VEN=5V
1.4
1.3
1.2
1.1
Output Voltage (V)
Output Voltage (V)
1.24
1.22
1.20
1.18
1.16
0.9
0.8
0.7
AP2132B-1.2V
VIN=2.2V
VCTRL=VEN=5V
0.6
0.5
0.4
o
TC=-40 C
0.3
1.14
1.12
1.10
1.0
o
0.2
TC=+25 C
0.1
TC=+85 C
o
0.0
-25
0
25
50
75
100
125
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
o
Case Temperature ( C)
AP2132B
Document number: DS41215 Rev. 1 - 2
Output Current (A)
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AP2132B
Performance Characteristics (Cont.)
Dropout Voltage vs. Output Current
1.50
400
1.35
360
1.20
320
1.05
280
0.90
AP2132B-1.2V
VCTRL=VEN=5V
No Load
0.75
0.60
o
TC=-40 C
0.45
o
TC=+25 C
Dropout Voltage (mV)
Output Voltage (V)
Output Voltage vs. Input Voltage
o
0.30
AP2132B-1.2V
VCTRL=VEN=5V
240
200
160
120
o
TC=-40 C
o
TC=+25 C
o
TC=+85 C
80
TC=+85 C
40
0.15
0
0.00
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.0
6.0
0.2
0.4
0.6
Input Voltage (V)
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Output Current (A)
Dropout Voltage vs. Case Temperature
Short Current vs. Case Temperature
400
AP2132B-1.2V
VCTRL=VEN=5V
360
280
Short Current (mA)
Dropout Voltage (mV)
320
IOUT=30mA
240
IOUT=500mA
200
IOUT=1A
IOUT=2A
160
120
320
AP2132B-1.2V
VOUT=1.2V
280
VIN=2.2V
VCTRL=VEN=5V
240
Ouput Short to GND
200
160
120
80
80
40
40
0
-25
0
25
50
0
75
-30
-15
0
15
30
45
60
75
90
105
120
o
Case Temperature ( C)
o
Case Temperature ( C)
VIN Start up Waveform
(VCTRL=VEN=5V, VIN=0 to 2.2V, No Load)
PSRR vs. Frequency
100
90
AP2132B-1.2V
VOUT=1.2V
80
CIN=10mF, COUT=10mF, CCTRL=1mF
PSRR (dB)
70
VOUT
1V/div
VCTRL=VEN=5V, VIN=2.2V to 3.2V, IOUT=10mA
VPG
1V/div
60
50
VIN
2V/div
40
30
20
IIN
1A/div
10
0
10
100
1k
10k
Time 80ms/div
100k
Frequency (Hz)
AP2132B
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AP2132B
Performance Characteristics (Cont.)
VEN Start up Waveform
(VCTRL=5V, VEN=0 to 5V, VIN=2.2V, No Load)
VCTRL Start up and Shut down Waveform
(VCTRL=0 to 5V, VEN=5V, VIN=2.2V, No Load)
VPG
1V/div
VOUT
1V/div
VOUT
1V/div
VPG
1V/div
VEN
2V/div
VCTRL
1V/div
IIN
1A/div
IIN
1A/div
Time 80ms/div
Time 80ms/div
Load Transient
(VCTRL=VEN=5V, VIN=2.2V, IOUT=0 to 2A)
VOUT
50mV/div
Line Transient
(VCTRL=VEN=5V, CIN=CCTRL=1µF, COUT=10µF,
VIN=2.2V to 3.2V, IOUT=10mA)
VIN
1V/div
VPG
500mV/div
VOUT
50mV/div
IOUT
1A/div
Time 80ms/div
AP2132B
Document number: DS41215 Rev. 1 - 2
Time 80ms/div
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AP2132B
Ordering Information
AP2132B X - X X X
Package
Output Voltage
Packing
RoHS/Green
MP : PSOP-8
1.2 : Fixed Output 1.2V
1.5 : Fixed Output 1.5V
1.8 : Fixed Output 1.8V
2.5 : Fixed Output 2.5V
TR : Tape & Reel
Blank : Tube
G1 : RoHS Compliant
and Green
Product Name
Package
PSOP-8
Temperature Range
-40 to +85°C
AP2132B
Document number: DS41215 Rev. 1 - 2
Version Description
Each fixed output version
integrates ADJ version
Part Number
Marking ID
Packing
AP2132BMP-1.2G1
2132B-1.2G1
Tube
AP2132BMP-1.2TRG1
2132B-1.2G1
Tape & Reel
AP2132BMP-1.5G1
2132B-1.5G1
Tube
AP2132BMP-1.5TRG1
2132B-1.5G1
Tape & Reel
AP2132BMP-1.8G1
2132B-1.8G1
Tube
AP2132BMP-1.8TRG1
2132B-1.8G1
Tape & Reel
AP2132BMP-2.5G1
2132B-2.5G1
Tube
AP2132BMP-2.5TRG1
2132B-2.5G1
Tape & Reel
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AP2132B
Package Outline Dimensions (All dimensions in mm(inch).)
(1)
Package Type: PSOP-8
3.800(0.150)
4.000(0.157)
2.313(0.091)
3.202(0.126)
3.402(0.134)
2.513(0.099)
1.270(0.050)
TYP
4.700(0.185)
5.100(0.201)
0.330(0.013)
0.510(0.020)
5.800(0.228)
6.200(0.244)
0.050(0.002)
0.150(0.006)
1.350(0.053)
1.550(0.061)
1.350(0.053)
0°
8°
1.750(0.069)
0.400(0.016)
1.270(0.050)
0.170(0.007)
0.250(0.010)
Note: Eject hole, oriented hole and mold mark is optional.
AP2132B
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AP2132B
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
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indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
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This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
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Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
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representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
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AP2132B
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