LM51551QDSSRQ1 - Texas Instruments

Manufacturer Part Number

LM51551QDSSRQ1

Manufacturer

Texas Instruments

Introduction

LM51551QDSSRQ1 is a highly efficient, automotive-grade, DC-DC switching controller designed for power management applications.

Product Features and Performance

Supports Step-Up, Step-Up/Step-Down functions

Features Boost, Flyback, SEPIC topologies

Output configuration is positive

Operates with a duty cycle up to 93%

Features soft start control

Clock synchronization available

Operates over a switching frequency range from 100kHz to 2.2MHz

Temperature range from -40°C to 150°C

Product Advantages

High efficiency and flexibility in power management

Can handle a wide range of input voltages from 2.97V to 45V

Suitable for harsh automotive environments due to high temperature resistance

Compact 12-WFDFN package ideal for space-constrained applications

Key Technical Parameters

Number of Outputs: 1

Output Phases: 1

Voltage Supply (Vcc/Vdd): 2.97V to 45V

Frequency Switching: 100kHz to 2.2MHz

Duty Cycle (Max): 93%

Operating Temperature: -40°C to 150°C

Quality and Safety Features

Automotive grade with AEC-Q100 qualification

Robust thermal management with exposed pad package

Compatibility

Compatible with various automotive and industrial applications requiring adjustable power supply solutions

Application Areas

Automotive power systems

Industrial power supplies

Portable devices requiring boosted power

Product Lifecycle

Currently active product status

No indication of nearing discontinuation

Check for updates on Texas Instruments' website for potential upgrades

Several Key Reasons to Choose This Product

Highly versatile with support for multiple topologies and configurations

Resilient to extreme temperatures, making it ideal for automotive applications

High switching frequency enables compact and efficient power supply designs

AEC-Q100 qualification ensures reliability and compliance in automotive applications

Texas Instruments' reputation for quality and robust support