EmbeddedRelated.com
    Parts   Power Management  LDO Voltage Regulators    AP2112 / AP7361 LDO Family    AP2112K    AP2112K-1.8TRG1
AP2112K-1.8TRG1

DIOAP2112K-1.8TRG1

Diodes Incorporated
Linear Voltage Regulator IC Positive Fixed 1 Output 600mA SOT-25
Active46,028 in stock
Datasheet Digi-Key Compare Prices

Overview

The AP2112K-1.8TRG1 is a 600mA fixed-output linear voltage regulator designed for stable 1.8V power delivery. It features high PSRR and low noise performance, making it suitable for noise-sensitive digital and analog circuits in compact designs.

Why Choose This Part

The regulator includes internal protection features such as foldback short-circuit protection and over-temperature shutdown to ensure system reliability. Its SOT-25 package provides a small footprint while supporting high output current compared to standard LDOs in similar packages.

Applications

Microcontroller Core Rails
Providing a stable 1.8V supply for low-power MCU cores and I/O domains requiring up to 600mA.
Battery-Powered Electronics
Utilizing the integrated enable function and 55uA quiescent current to extend battery life in portable devices.
Communication Modules
Powering RF and wireless transceivers that demand high PSRR to minimize interference and signal jitter.

Key Specifications

PSRR 65dB (100Hz ~ 1kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Control Features Enable
Current - Output 600mA
Protection Features Over Current, Over Temperature
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 85degC
Voltage - Input (Max) 6V
Voltage Dropout (Max) 0.7V @ 600mA
Supplier Device Package SOT-25
Current - Quiescent (Iq) 80 uA
Voltage - Output (Min/Fixed) 1.8V

Getting Started

To implement this regulator, place a 1uF ceramic capacitor at the input and output pins for stability. Use the EN pin to control power sequencing, and ensure the PCB layout provides adequate copper area for thermal dissipation at higher current loads.

Part of AP2112 / AP7361 LDO family » AP2112K

AP2112K Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Voltage Dropout (Max) Output V Stock
AP2112K-1.8TRG1 (this part) 0.7V 1.8V 46,028
AP2112K-3.3TRG1 0.4V 3.3V 57,293
AP2112K-3.3 0.4V 3.3V 109,692

Categories

Power Management > LDO Voltage Regulators