EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts   Power Management  LDO Voltage Regulators    AP2210N-3.3TRG1
AP2210N-3.3TRG1

DIOAP2210N-3.3TRG1

Diodes Incorporated
Linear Voltage Regulator IC Positive Fixed 1 Output 300mA SOT-23-3
Active19,386 in stock
Datasheet Digi-Key Compare Prices

Overview

The AP2210N-3.3TRG1 is a 300mA fixed output low dropout (LDO) linear regulator designed for high performance and low noise applications. It operates with a wide input voltage range up to 13.2V while maintaining a low quiescent current of 1uA under typical operation. This regulator is housed in a compact SOT-23-3 package, making it suitable for space-constrained power management tasks.

Why Choose This Part

The device features comprehensive integrated protection, including over-current, thermal shutdown, and reverse polarity protection. It offers a high PSRR and low noise performance combined with a very low 1uA quiescent current, balancing power efficiency with signal integrity.

Applications

Battery-Powered Instrumentation
Utilizes the ultra-low quiescent current and 5uA sleep mode to extend battery life in portable handheld devices.
RF and Communication Modules
The high PSRR of 75dB at 100Hz and low noise output of 260nV/rtHz make it ideal for sensitive analog and RF stages.
Post-Regulator for Switching Supplies
Effectively filters high-frequency ripple from DC-DC converters to provide a clean 3.3V rail for precision sensors.

Key Specifications

PSRR 75dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Current - Output 300mA
Protection Features Over Current, Over Temperature, Reverse Polarity
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC
Voltage - Input (Max) 13.2V
Voltage Dropout (Max) 0.5V @ 300mA
Current - Supply (Max) 15 mA
Supplier Device Package SOT-23-3
Current - Quiescent (Iq) 180 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

To ensure stability, place a low-ESR ceramic capacitor (typically 1uF or larger) close to the output pin. Ensure the input voltage remains between 2.5V and 13.2V, and verify that the thermal dissipation of the SOT-23-3 package is sufficient for your specific load current and ambient temperature.

AP2210 Family

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

Part Number Package Stock
AP2210N-3.3TRG1 (this part) 3-236 19,386
AP2210K-3.3TRG1 SC-74A, SOT-753 148,290

Also Consider

MCP1700T-3302E/TT MCHPMicrochip Technology - Offers a lower quiescent current of 1.6uA and is a widely available alternative for low-power 3.3V regulation.

Featured in Projects

USB-C RF Receiver for Wireless Temperature/Humidity Sensors
Intermediate · 7 parts · ~$10-15
Build your own project with the Project Advisor

Categories

Power Management > LDO Voltage Regulators
The 2026 Embedded Online Conference