AP2112-3.3 Low dropout voltage regulator

The AP2112-3.3 from Diodes Incorporated is a compact, low-dropout (LDO) linear voltage regulator that provides a stable 3.3V output with low noise and excellent transient response. Designed for space-constrained and battery-powered applications, it delivers up to 600 mA output current with high efficiency.
The device features low quiescent current, fast response to load changes, and stable operation with ceramic capacitors, making it ideal for powering microcontrollers, sensors, and RF modules. Built-in protection features ensure safe and reliable operation in a wide range of applications.

Key Features
Output & Performance
Fixed output voltage: 3.3V
Output current: up to 600 mA
Low dropout voltage (~250 mV at full load)

Efficiency
Low quiescent current (ideal for battery-powered devices)
High efficiency at light and moderate loads

Stability
Stable with low ESR ceramic capacitors
Fast transient response

Protection Features
Overcurrent protection
Thermal shutdown
Short-circuit protection

Control & Operation
Enable (EN) pin for on/off control
Good load and line regulation

Operating Conditions
Input voltage range: 2.5V to 6.0V
Operating temperature: -40°C to +85°C

Package Information
Package Type: SOT-23-5 / SOT-223 / DFN (variant dependent)
Pin Count: 5 (SOT-23-5 version)
Mounting Type: Surface Mount (SMD)

Datasheet: -AP2112

Package Contents
1 × AP2112-3.3 LDO Voltage Regulator