LM22676-ADJ中文资料3A SIMPLE SWITCHER®, Step-Down Voltage Regulator with Precision Enable数据手册TI规格书

描述 Description

General Description
The LM22676 series of regulators are monolithic integrated circuits which provide all of the active functions for a stepdown (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (90%) is obtained through the use of a low ON-resistance N-channel MOSFET. The series consists of a fixed 5V output and an adjustable version.

特性 Features

■ Wide input voltage range: 4.5V to 42V
■ Internally compensated voltage mode control
■ Stable with low ESR ceramic capacitors
■ 120 mΩN-channel MOSFET TO-263 THIN package
■ 100 mΩN-channel MOSFET PSOP-8 package
■ Output voltage options:
   -ADJ (outputs as low as 1.285V)
   -5.0 (output fixed to 5V)
■ ±1.5% feedback reference accuracy
■ Switching frequency of 500 kHz
■ -40°C to 125°C operating junction temperature range
■ Precision enable pin
■ Integrated boot diode
■ Integrated soft-start
■ Fully WEBENCH®enabled
■ Step-down and inverting buck-boost applicationsPackage
■ PSOP-8 (Exposed Pad)
■ TO-263 THIN (Exposed Pad)Applications
■ Industrial Control
■ Telecom and Datacom Systems
■ Embedded Systems
■ Automotive Telematics and Body Electronics
■ Conversions from Standard 24V, 12V and 5V Input Rails