3-A step-down voltage regulator, adj., 4 - 60 V, 1.23 - 57 V, TO

LM2576xx SIMPLE SWITCHER® 3-A Step-Down Voltage Regulator Series

Features:
• 3.3 V, 5 V, 12 V, 15 V and adjustable output versions
• Adjustable output voltage range from 1.23 V to 37 V (57 V for HV version)
±4% maximum over line and load conditions
• Specified 3A output current
• Wide input voltage range: 40 V up to 60 V for HV version
• Requires only 4 external components
• Internal 52 kHz fixed frequency oscillator
• TTL shutdown capability, power-saving standby mode
• High efficiency
• Uses readily available standard inductors
• Thermal shutdown and current limitation protection

Applications
• Simple, high-efficiency step-down regulator (Buck regulator)
• Efficient pre-regulator for linear controllers
• On-card switching regulators
• Positive-to-negative converter (buck boost)