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LMS3655 Datasheet 400-khz DC-dc Step-down Converter

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & munity LMS3655 SNAS744B – JULY 2017 – REVISED MARCH 2018 LMS3655 5.

General Description

The LMS3655 synchronous buck regulators are optimized for high performance applications, providing an adjustable output of 1 V to 20 V.

Seamless transition between PWM and PFM modes, along with a low quiescent current, ensures high efficiency and superior transient responses at all loads.

Advanced high-speed circuitry allows the LMS3655 to regulate an input of 24 V to an output of 3.3 V at a fixed frequency of 400 kHz while also enabling a continuous load current of 5.5 A.

Key Features

  • 1 96% Peak Efficiency While Converting 12 V to 5 V.
  • Low EMI and Switch Noise.
  • Minimized Switch Node Ringing.
  • Pseudo-Random Spread Spectrum.
  • 400-kHz (±10%) Fixed Switching Frequency.
  • 40°C to +150°C Junction Temperature Range.
  • External Frequency Synchronization.
  • RESET Output With Internal Filter and 3-ms Release Timer.
  • Automatic Light Load Mode for Improved Efficiency.
  • Pin-Selectable Forced PWM Mode.

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LMS3655 Distributor