LM2594ASCBCKGEVB: 5V @ 500mA, 5 ~ 60V in, Buck

Summary

The LM2594 regulator is circuit ideally suited for easy and convenient design of a step-down switching regulator (buck converter). It is capable of driving a 0.5 A load with excellent line and load regulation.

This device is available in adjustable output version and it is internally compensated to minimize the number of external components to simplify the power supply design. Demoboard size: 28mm x 25mm.

The LM2594 regulator is monolithic integrated circuit ideally suited for easy and convenient design of a step−down switching regulator (buck converter). It is capable of driving a 0.5 A load with excellent line and load regulation. This device is available in adjustable output version. It is internally compensated to minimize the number of external components to simplify the power supply design.

Since LM2594 converter is a switch−mode power supply, its efficiency is significantly higher in comparison with popular three−terminal linear regulators, especially with higher input voltages. The LM2594 operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 8−Lead PDIP and 8−Lead Surface Mount packages.

Specifications

Manufacturer	onsemi
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	LM2594ASCBCKGEVBOS-ND
Eval Board Supplier	onsemi
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	5 V
Current Out	500 mA
Voltage In	5 ~ 60 V
Efficiency @ Conditions	>85%, 14 ~ 40V in, 12V @ 500 mA >77%, 7 ~ 39V in, 5V @ 500 mA >75%, 6 ~ 22V in, 3.3V @ 500 mA
Voltage Out Range	1.23 ~ 37 V
Features	Current Limit (Adj. or Fixed) Shutdown, Enable, Standby Thermal Protection
Switching Frequency	150 kHz
Standby Current [Typical]	500 nA
Quiescent Current [Typical]	5 mA
Component Count + Extras	8 + 4
Internal Switch	Yes
Design Author	ONSemiconductor
Application / Target Market	Battery Chargers Power: Auxiliary Power Supply
Standby Current [Maximum]	2 mA
Quiescent Current [Maximum]	10 mA
Main I.C. Base Part	LM2594
Date Created By Author	2009-01
Date Added To Library	2016-05