LM2575 Overview
The LM2575 device greatly simplifies the design of switching power supplies by conveniently providing all the active functions needed for a step-down (buck) switching regulator in an integrated circuit. Accepting a wide input voltage range and available in an adjustable output version, the LM2575 has an integrated switch capable of delivering 1 A of load current, with excellent line and load regulation. The device...
LM2575 Key Features
- 1 Adjustable With a Range of 1.23 V to 37 V and ±4% Regulation (Max) Over Line, Load, and Temperature Conditions
- Specified 1-A Output Current
- Wide Input Voltage Range 4.75 V to 40 V
- Uses Readily Available Standard Inductors
- 52-kHz (Typical) Fixed-Frequency Internal
- TTL Shutdown Capability With 50-μA (Typical)
- High Efficiency…as High as 88% (Typical)
- Thermal Shutdown and Current-Limit Protection
- For the Full Offering of Voltages (Including Fixed

