LM3477AMM - Texas Instruments

Manufacturer Part Number

LM3477AMM

Manufacturer

Texas Instruments

Introduction

High efficiency, versatile switch-mode power controller for low to medium power applications

Product Features and Performance

Buck and Buck-Boost topology support

Single output transistor driver design

Up to 93% duty cycle for high efficiency

Operates over a wide supply voltage range (2.97V to 35V)

500kHz switching frequency for compact external components

Thermal shutdown and overcurrent protection

Product Advantages

Flexible design suitable for various applications

High efficiency reduces thermal footprint and energy consumption

Wide input voltage range accommodates multiple sources

Key Technical Parameters

Topology: Buck, Buck-Boost

Voltage - Supply (Vcc/Vdd): 2.97V ~ 35V

Swing frequency: 500kHz

Duty Cycle (Max): 93%

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Built-in overcurrent protection

Thermal shutdown feature for safety

Compatibility

Designed for use with various inductors and capacitors

Application Areas

Power supplies for consumer electronics

Point of load conversions

Distributed power systems

Networking and telecommunication infrastructure

Product Lifecycle

Obsolete – End of Life with no direct replacement

Several Key Reasons to Choose This Product

Versatile for multiple power management scenarios

High-switching frequency simplifies use of smaller components

Robust thermal and current protection features ensure reliability

Obsolete status might favor legacy designs or specific industry applications