TILM2576HVT-ADJ/NOPB

Overview

The LM2576HVT-ADJ/NOPB is a high-voltage, adjustable step-down switching regulator capable of driving a 3A load with excellent line and load regulation. This version of the popular SIMPLE SWITCHER series supports input voltages up to 60V, making it suitable for applications with high-voltage transients or wide-range supply rails. The device simplifies power supply design by requiring a minimum number of external components and featuring internal frequency compensation.

Why Choose This Part

The HV variant extends the standard LM2576 input range to 60V while maintaining a high 3A output current capability. It features a low-power standby mode with a typical current of 50uA and includes internal thermal shutdown and current limit protection for robust operation. Its 52kHz fixed switching frequency allows for the use of readily available standard inductors.

Applications

Getting Started

When designing with this regulator, ensure the input capacitor is placed as close as possible to the VIN and GND pins to minimize EMI. Use the formulas in the datasheet to select the appropriate inductor and feedback resistor network for your desired output voltage between 1.23V and 55V. Thermal management is critical at 3A loads, so utilize the TO-220 package's ability to mount to a heatsink if necessary.

LM2576 Family

Comparing specs that differ across variants. The current part is highlighted.

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