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MB39A136 - 2ch PFM/PWM DC/DC converter IC

General Description

MB39A136 is 2ch step-down DC/DC converter IC of the current mode N-ch/N-ch synchronous rectification method.

Key Features

  • S.
  • High efficiency.
  • For frequency setting by external resistor : 100 kHz to 1 MHz.
  • Error Amp threshold voltage : 0.7 V ± 1.0%.
  • Minimum output voltage value : 0.7 V.
  • Wide range of power-supply voltage : 4.5 V to 25 V.
  • PFM/PWM auto switching mode and fixed PWM mode selectable.
  • Supports Symmetrical-Phase method.
  • With built-in over voltage protect.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FUJITSU MICROELECTRONICS DATA SHEET DS04-27262-2E ASSP for Power Management Applications (General-Purpose DC/DC Converter) 2ch PFM/PWM DC/DC converter IC with synchronous rectification MB39A136 ■ DESCRIPTION MB39A136 is 2ch step-down DC/DC converter IC of the current mode N-ch/N-ch synchronous rectification method. It contains the enhanced protection features, and supports the symmetrical-phase method and the ceramic capacitor. MB39A136 realizes rapid response, high efficiency, and low ripple voltage, and its high-frequency operation enables the miniaturization of inductors and I/O capacitors. ■ FEATURES • High efficiency • For frequency setting by external resistor : 100 kHz to 1 MHz • Error Amp threshold voltage : 0.7 V ± 1.0% • Minimum output voltage value : 0.