The LM2574 series of regulator are monolithic integrated circuits that provide all the active functions for a step down (buck) switching regulator, capable of driving a 0.5A load with excellent line and load regulation.
Output Current 500 mA
InputMin Voltage 4 Volt
InputMax Voltage 60 Volt
Output Min 3.3, 1.23, 12, 15, 5 Volt
Output Max 57, 3.3, 12, 15, 5 Volt
Frequency Min 52000 Hz
Frequency Max 52000 Hz
Efficiency 88, 77, 72 %
Applications
-Simple high-efficiency step-down (buck) regulator
-Efficient pre-regulator for linear regulators
-On-card switching regulators
-Positive to negative converter (Buck-Boost)
Read More Source:http://www.national.com/mpf/LM/LM2574HV.html
Thank you.
Related Links circuit
All circuits of Switching regulator
All circuits of DC converter ic
All circuits of DC converter step down voltage
All circuits of Micro dc converter
All circuits of DC voltage converter
Simple 5V 1A Switching regulator by IC LM2575-5.0
LM2577 5V to 12V DC Converter step up Voltage Regulator
5V to +12V/-12V DC Converter by LM2577
12V Switching Regulator Boosts Input Voltage
Step-up Switching Regulator Schematic
5V 3A switching power supply by LM2576
This entry was posted on Friday, October 5th, 2007 at 5:59 pm and is filed under dc converter, switching power supply.
