L4988DTR - STMicroelectronics

Manufacturer Part Number

L4988DTR

Manufacturer

stmicroelectronics

Introduction

The L4988DTR from stmicroelectronics is a linear, low drop-out regulator designed for automotive applications, featuring fixed output configuration with robust power management capabilities.

Product Features and Performance

Low dropout voltage: 0.5V @ 200mA

Fixed output voltage of 5V

Capable of supplying 200mA output current

Quiescent current of 150 µA

Maximum supply current of 2.5 mA

Power supply rejection ratio (PSRR) of 60dB at 100Hz

Integrated reset and watchdog control features

Product Advantages

Excellent dropout performance for improved efficiency

Stable 5V output accommodates a wide range of applications

Low quiescent current optimizes power saving

High PSRR ensures clean output against supply noise

Key Technical Parameters

Voltage Input (Max): 31V

Voltage Output (Min/Fixed): 5V

Current Output: 200mA

Current Quiescent (Iq): 150 µA

PSRR: 60dB (100Hz)

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

AEC-Q100 qualified for automotive reliability

Compatibility

Compatible with automotive voltage requirement standards

Application Areas

Automotive electronics

Low power automotive applications

Power management in embedded systems

Product Lifecycle

Status: Active

Not near discontinuation with ongoing support and availability

Several Key Reasons to Choose This Product

Exact 5V output suitable for consistent power delivery in automotive systems

Low dropout feature to maintain performance across varying input conditions

Robust safety features including thermal and overcurrent protection

Low quiescent current enhances overall energy efficiency

AEC-Q100 certification assures high automotive-grade reliability

Broad operating temperature range from -40°C to 150°C for extreme environments