Diodes AP2132 User Manual
2A CMOS LDO Regulator AP2132
Data Sheet
General Description
The AP2132 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 AP2132 have features of large current, low
dropout voltage, high output voltage accuracy, and
low input voltage. The AP2132 provide a power good
(PG) signal to indicate if the voltage level of V
reaches 92% of its rating value. And it operates with
a V
as low as 1.4V and VPP voltage 5V with output
IN
voltage programmable as low as 0.6V.
The AP2132 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 AP2132 series are available in PSOP-8 package.
OUT
Features
Adjustable Output: 0.6V to 3.0V
•
• Low Dropout Voltage: 300mV@I
V
=1.2V
OUT
• Over Current and Over Temperature Protection
• Enable Pin
• PSOP-8 Package with Thermal Pad
• Maximum Output Current: 2A
• High Output Voltage Accuracy: 2%
• V
• Excellent Line/Load Regulation
Power Good Signal
OUT
Applications
• Notebook
OUT
Figure 1. Package Type of AP2132
PSOP-8
=2A,
Oct. 2010 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
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Data Sheet
2A CMOS LDO Regulator AP2132
Pin Configuration
MP Package
(PSOP-8)
8
PG
EN
1
2
GND
ADJ
7
Pin Description
Pin
Number
1
2
3
4
5
6 VOUT
7 ADJ
8
Pin Name Function
PG
EN
VIN
VCTRL
NC
GND Ground
VIN
VCTRL
3
4
6
5
VOUT
NC
Figure 2. Pin Configuration of AP2132 (Top View)
Assert high once V
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
reaches 92% of its rating voltage
OUT
=0.6 (R1+R2)/R2
OUT
Oct. 2010 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
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Data Sheet
2A CMOS LDO Regulator AP2132
Functional Block Diagram
Figure 3. Functional Block Diagram of AP2132
Oct. 2010 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
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p
Data Sheet
2A CMOS LDO Regulator AP2132
Ordering Information
AP2132 -
Circuit Type G1: Green
Package Blank: Tube
MP: PSOP-8 TR: Tape & Reel
1.2: Fixed Output 1.2V
1.5: Fixed Output 1.5V
1.8: Fixed Output 1.8V
2.5: Fixed Out
ut 2.5V
Packing
Type
Package
Temperature
Range
Version
Description
Part Number Marking ID
AP2132MP-1.2G1 2132MP-1.2G1 Tube
AP2132MP-1.2TRG1 2132MP-1.2G1 Tape & Reel
AP2132MP-1.5G1 2132MP-1.5G1 Tube
PSOP-8 -40 to 85ºC
Each fixed
output version
integrates ADJ
version
AP2132MP-1.5TRG1 2132MP-1.5G1 Tape & Reel
AP2132MP-1.8G1 2132MP-1.8G1 Tube
AP2132MP-1.8TRG1 2132MP-1.8G1 Tape & Reel
AP2132MP-2.5G1 2132MP-2.5G1 Tube
AP2132MP-2.5TRG1 2132MP-2.5G1 Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and Green.
Oct. 2010 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
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