LD3985M25R - STMicroelectronics

Manufacturer Part Number

LD3985M25R

Manufacturer

stmicroelectronics

Introduction

Low drop-out, fixed 2.5V output voltage regulator suitable for various electronic applications.

Product Features and Performance

Positive output configuration

Fixed voltage output

Single voltage regulator

Designed for low input voltages up to 6V

Ultra-low dropout of 0.1V @ 150mA load

Stable current output of 150mA

Low quiescent current of 150 µA

Minimal supply current up to 250 µA

Excellent power supply rejection ratio (PSRR) of 60dB at 1kHz to 50dB at 10kHz

Enable control feature for on/off functionality

Over Current and Over Temperature protections enhancing reliability and safety

Product Advantages

Highly efficient voltage regulation for low voltage applications

Compact SC-74A, SOT-753 surface mount package ideal for space-constrained designs

Robust thermal performance for a wide operating temperature range

Key Technical Parameters

Input Voltage (Max): 6V

Output Voltage (Min/Fixed): 2.5V

Voltage Dropout (Max): 0.1V @ 150mA

Output Current: 150mA

Quiescent Current (Iq): 150 µA

Supply Current (Max): 250 µA

PSRR: 60dB ~ 50dB (1kHz ~ 10kHz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Compatibility

Compatible with a broad range of electronics requiring 2.5V regulated supply

SOT-23-5 package compatible with common surface mount processes

Application Areas

Consumer electronics

Power management for microcontrollers

Portable devices

Low-voltage logic supplies

Product Lifecycle

Active status

Not nearing discontinuation

Available in Tape & Reel (TR) packaging for high volume assembly

Several Key Reasons to Choose This Product

Highly efficient for battery-powered applications due to low dropout and quiescent currents

Robust protection features ensure long-term reliability

Optimal performance-to-price ratio

Versatile for integration in a variety of electronic devices

Broad operating temperature range suitable for industrial applications