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AP2132

2A CMOS LDO Regulator

Datasheet

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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 VOUT reaches 92% of its rating value. And it operates with a VIN as low as 1.4V and VPP voltage 5V with output 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.

Feature(s)

Adjustable Output: 0.6V 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

Application(s)

Notebook

Specifications & Technical Documents

Product Parameters

Iq (typ) (µA)	300
Iq (max) (µA)	450
Operating Ambient Temperature (°C)	-40 to 85
AEC Qualified	No
Compliance (Only Automotive Supports PPAP)	Standard
Type	LDO
Output options	Adjustable & Fixed
Iout (A)	2
Vin (Max) (V)	5.5
Vin (Min) (V)	1.4
Vout (min)	0.6
Vout (max)	5.5
Fixed Vout (V)	1.2, 1.5, 1.8, 2.5
Adjustable VFB (V)	0.6
Accuracy 25C	2
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage	0.45
PSRR (dB) 1kHz	60
Enable Active	Yes (High)
Channels	1
Output Discharge	No
Power Good	Open Drain
Reverse Protection	No
VCTL Function	Yes

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products
PCN-2568	2022-03-29	2022-03-29	Qualified Additional Assembly & Test (A/T) Sites, Bill of Material, and updated Data Sheets for Package Outline Dimension Change