LM2574MX-ADJ
Conv DC-DC 4V to 40V Step Down Single-Out 1.23V to 37V 0.5A 14Pin SOIC W T/R
Description
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 number of external components, these regulators are simple to use and include internal frequency compensation and a fixed frequency oscillator.
Features
• 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
Applications
• Simple High-Efficiency Step-Down Buck Regulator
• Efficient Preregulator for Linear Regulators
• On-Card Switching Regulators
• Positive-to-Negative Converter Buck-Boost
