LM1577, LM2577
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SNOS658D – JUNE 1999 – REVISED APRIL 2013
LM1577/LM2577 SIMPLE SWITCHER® Step-Up Voltage
Regulator
Check for Samples: LM1577, LM2577
FEATURES
1
•23 Requires Few External Components •
NPN Output Switches 3.
0A, can Stand off 65V • Wide Input Voltage Range: 3.
5V to 40V • Current-mode Operation for Improved
Transient Response, Line Regulation, and Current Limit • 52 kHz Internal Oscillator • Soft-start Function Reduces In-rush Current During Start-up • Output Switch Protected by Current Limit, Under-voltage Lockout, and Thermal Shutdown
TYPICAL APPLICATIONS
• Simple Boost
Regulator • Flyback and Forward
Regulators • Multiple-output
Regulator
DESCRIPTION
The LM1577/L...