LM2674

LM2676 SNVS007H – SEPTEMBER 1998 – REVISED JUNE 2023 LM2674 SIMPLE SWITCHER® Power Converter, High-Efficiency, 500-mA, Step-Down Voltage Regulator 1 Features New product available: – LMR36506 3 to 65-V, 0.6-A, 200-kHz to 2.2MHz synchronous converter For faster time to market: – TPSM365R6 3 to 65-V, 0.6-A, 200-kHz to 2.2MHz power module Efficiency up to 96% Available in 8-pin SOIC, PDIP, and 16-pin WSON packages Simple and easy to design with Requires only five external components Uses readily available standard inductors 3-V, 5-V, 12-V, and adjustable output versions 1.21-V to 37-V adjustable version output voltage range ±1.5% maximum output voltage tolerance over line and load conditions Ensured 500-mA output load current 0.25-Ω DMOS output switch 8-V to 40-V wide input voltage range 260-kHz fixed frequency internal oscillator TTL shutdown capability, low power standby mode Thermal shutdown and current limit protection Create a custom design using the LM2674 with the WEBENCH® Power Designer 2 Applications Simple high efficiency (> 90%) step-down (buck) regulators Efficient preregulator for linear regulators Positive-to-negative converters 3 Description The LM2674 series of regulators are monolithic integrated circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 500-mA load current with excellent line and load regulation. These devices...