Datasheet Details
Part number:
LM1577, LM1
Manufacturer:
National Semiconductor
File Size:
889.65 KB
Description:
Simple switcher step-up voltage regulator.
Note:
This datasheet PDF includes multiple part numbers: LM1577, LM1.
Please refer to the document for exact specifications by model.
LM1577, LM1, SIMPLE SWITCHER Step-Up Voltage Regulator
The LM1577/LM2577 are monolithic integrated circuits that provide all of the power and control functions for step-up (boost), flyback, and forward converter switching regulators.
The device is available in three different output voltage versions: 12V, 15V, and adjustable.
Requiring a minimum number
LM1577 Features
* include a 52 kHz fixed-frequency oscillator that requires no external components, a soft start mode to reduce in-rush current during start-up, and current mode control for improved rejection of input voltage and output load transients. Features Requires few external components NPN output switches 3
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