Hot-selling and scarce LM22673TJE-5.0 3A SIMPLE SWITCHER®, Step-Down Voltage Regulator TO263 spot stock

Product Descriptions

The LM22673 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.

​The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and National’s Webench® design tool.National’s Webench®tool includes features such as external component calculation,  electrical  simulation,  thermal  simulation,  and Build-It boards for easy design-in. The switching clock frequency is provided by an internal fixed frequency oscillator which operates at 500 kHz.The LM22673 series also has built in thermal shutdown and current limiting. The current limit threshold can be adjusted using an external resistor. An adjustable soft-start feature is provided by selecting an appropriate external soft-start capacitor.

Product 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 500kHz

■-40°C to 125°C operating junction temperature range

■Adjustable soft-start

■Adjustable current limit

■Integrated boot diode

■Fully Webench® enabled

■Step-down and inverting buck-boost applications

Product Applications

■Industrial Control

■Telecom and Datacom Systems

■Embedded Systems

■Automotive Telematics and Body Electronics

■Conversions from Standard 24V, 12V and 5V Input Rails

Product Photos

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