LDLN025PU28R - STMicroelectronics

Manufacturer Part Number

LDLN025PU28R

Manufacturer

STMicroelectronics

Introduction

LDLN025PU28R is a low dropout linear voltage regulator designed for power management applications.

Product Features and Performance

Positive output configuration

Fixed output type

Single regulator integration

Input voltage up to 5.5V

Fixed output voltage of 2.8V

Maximum voltage dropout of 0.25V at 250mA load

Output current capability of 250mA

Quiescent current of 25 µA

Supply current up to 425 µA

High power supply rejection ratio of 80dB to 60dB from 100Hz to 100KHz

Enable functionality for power saving

Product Advantages

Optimized for low voltage operations

Highly stable and accurate output voltage

Low quiescent current suitable for battery-powered applications

High PSRR for noise-sensitive circuits

Integrated protection features enhance system reliability

Key Technical Parameters

Maximum Input Voltage: 5.5V

Minimum/Fixed Output Voltage: 2.8V

Maximum Voltage Dropout: 0.25V @ 250mA

Output Current: 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 feature

Compatibility

Compatible with a wide range of circuits requiring a 2.8V supply

Surface mount 4-XDFN Exposed Pad for easy PCB integration

Application Areas

Portable and battery-powered electronics

IoT devices

Microcontroller power supply

Sensor interfaces

Product Lifecycle

Status: Active

No indication of discontinuation

Replacements or upgrades should be available if needed

Several Key Reasons to Choose This Product

Low dropout voltage supports applications with low input voltages

Ultra-low quiescent current extends battery life in portable devices

High PSRR provides clean voltage for sensitive electronic circuits

Compact 4-DFN package saves board space

Extensive protection features ensure long-term reliability

Broad operating temperature range suitable for industrial applications