LM2574HV - Texas Instruments

LM2574HV 0.5-A Step-Down Voltage Regulator

The LM2574xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable output version. Requiring a minimum nu.

Features

•1 3.3-V, 5-V, 12-V, 15-V, and Adjustable Output Versions
• Adjustable Version Output Voltage Range: 1.23 V to 37 V (57 V for HV version) ±4% Maximum Over Line and Load Conditions
• Specified 0.5-A Output Current
• Wide Input Voltage Range: 40 V, up to 60 V 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
• Create a Custom Design Using the LM2574 With the WEBENCH® Power Designer 2 Applica.