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LM25574 Datasheet 0.5-A Step-Down Switching Regulator

Manufacturer: Texas Instruments

General Description

The LM25574 is an easy to use buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components.

Operating with an input voltage range of 6 V to 42 V, the LM25574 delivers 0.5-A of continuous output current with an integrated 750-mΩ N-Channel MOSFET.

The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators.

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community LM25574 SNVS483H – JANUARY 2007 – REVISED AUGUST 2017 LM25574 42-V, 0.

Key Features

  • 1 Integrated 42-V, 750-mΩ N-Channel MOSFET.
  • Ultra-Wide Input Voltage From 6 V to 42 V.
  • Adjustable Output Voltage as Low as 1.225 V.
  • 1.5% Feedback Reference Accuracy.
  • Operating Frequency Adjustable Between 50 kHz and 1 MHz With Single Resistor.
  • Master or Slave Frequency Synchronization.
  • Adjustable Soft-Start.
  • Emulated Current Mode Control Architecture.
  • Wide Bandwidth Error Amplifier.
  • Built-In Protection.