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LM21215A - Voltage-Mode Synchronous Buck Regulator

Description

The LM21215A is a synchronous buck DC-DC converter that delivers up to 15 A of output current at output voltages as low as 0.6 V.

Operating over an input voltage range of 2.95 V to 5.5 V with ultra-high efficiency, the LM21215A suits a wide variety of low voltage systems.

Features

  • 1 High-Efficiency Synchronous DC/DC Converter.
  • Input Voltage Range of 2.95 V to 5.5 V.
  • Adjustable Output Voltage From 0.6 V to VIN.
  • Output Current as High as 15 A.
  • Frequency Synchronization 300 kHz to 1.5 MHz.
  • Integrated 7-mΩ PMOS Buck Switch Supports 100% Duty Cycle for Low Dropout Voltage.
  • Integrated 4.3-mΩ NMOS Synchronous Rectifier Eliminates Schottky Diode.
  • Accurate ±1% Internal Voltage Reference.
  • Automatic Dio.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community LM21215A SNOSB87D – MARCH 2011 – REVISED MAY 2019 LM21215A 2.95-V to 5.5-V,15-A, Voltage-Mode Synchronous Buck Converter With Frequency Synchronization 1 Features •1 High-Efficiency Synchronous DC/DC Converter – Input Voltage Range of 2.95 V to 5.5 V – Adjustable Output Voltage From 0.6 V to VIN – Output Current as High as 15 A • Frequency Synchronization 300 kHz to 1.5 MHz • Integrated 7-mΩ PMOS Buck Switch Supports 100% Duty Cycle for Low Dropout Voltage • Integrated 4.3-mΩ NMOS Synchronous Rectifier Eliminates Schottky Diode • Accurate ±1% Internal Voltage Reference • Automatic Diode Emulation Mode for Improved Efficiency at Light Loads • Monotonic Pre-Biased Startup • Internal 0.
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