LM1575 - Texas Instruments

LM1575 1A Step-Down Voltage Regulator

The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. Requiring a minimum number of e.

Features

1
•23 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
• Adjustable Version Output Voltage Range,
  – 1.23V to 37V (57V for HV Version) ±4% Max Over
  – Line and Load Conditions
• Specified 1A Output Current
• Wide Input Voltage Range, 40V up to 60V for HV Version
• Requires Only 4 External Components
• 52 kHz Fixed Frequency Internal Oscillator
• TTL Shutdown Capability, Low Power Standby Mode
• High Efficiency
• Uses Readily Available Standard Inductors
• Thermal Shutdown and Current Limit Protection
• P+ Product Enhancement Tested APPLICATIONS
• Simple High-Efficiency Step-Down (Buck) Regulat.