LDLN025M28R - STMicroelectronics

Manufacturer Part Number

LDLN025M28R

Manufacturer

stmicroelectronics

Introduction

The LDLN025M28R is a low drop out (LDO) regulator from STMicroelectronics, designed for power management applications.

Product Features and Performance

Positive output configuration

Fixed output voltage of 2.8V

Capable of delivering up to 250mA output current

Low dropout voltage of 0.2V at 250mA load

Low quiescent current of 25 µA, increasing to 425 µA at maximum load

Excellent Power Supply Rejection Ratio (PSRR) ranging from 80dB to 60dB across 100Hz to 100KHz frequencies

Features enable control input for advanced power management

Provides over-current, over-temperature, and short-circuit protection along with a soft-start feature to minimize in-rush current

Operating temperature range from -40°C to 125°C, suitable for various environmental conditions

Surface mount packaging in SC-74A, SOT-753 format for compact PCB designs

Product Advantages

High-efficiency operation due to low dropout voltage

Low power consumption with minimal quiescent current

Robust protection features ensure long-term reliability under fault conditions

PSRR feature maximizes performance in noisy environments

Wide operating temperature range makes it suitable for industrial applications

Key Technical Parameters

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 2.8V

Max Current Output: 250mA

Voltage Dropout (Max): 0.2V @ 250mA

Quiescent Current (Iq): 25 µA

Supply Current Max: 425 µA

PSRR: 80dB ~ 60dB (100Hz ~ 100KHz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Short Circuit Protection

Soft Start mechanism

Compatibility

Compatible with a wide range of microcontrollers and digital devices requiring 2.8V power supply

Surface Mount Technology (SMT) compatible with standard PCB manufacturing processes

Application Areas

Consumer Electronics

Portable and Battery-powered Devices

Industrial Control Systems

Telecommunications Equipment

Product Lifecycle

Currently listed as Active

No indications of nearing discontinuation, replacements, or upgrades at this time

Several Key Reasons to Choose This Product

High efficiency and reliability for sensitive electronics

Low operational cost due to reduced power consumption

Customizable power management with enable control feature

Robust safety features protect the lifetime of both the LDO and connected components

Versatility in application across a broad range of industries and devices