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MB39C502 - High Efficiency Step Down DC/DC Controller Datasheet

General Description

MB39C502 is a single output step down DC/DC controller using external FETs.

It achieves the high efficiency with “Enhanced Low Power Mode (LPM) Operation” in light load.

Key Features

  • High Efficiency with Enhanced LPM Operation.
  • Automatic Transition for PFM/PWM.
  • Enhanced LPM Operation Transferred by SLP_N Assertion.
  • Over Current Alerting.
  • Reference Voltage Accuracy: ±1%.
  • Output Voltage Range : 0.7V to 2.0V (MB39C502) : 2.4V to 3.5V (MB39C503) : fixed 5V (MB39C504).
  • VIN Input Voltage Range : 4.0V to 25V (MB39C502/C503) : 5.4V.

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Part Number Description
MB39C503 High Efficiency Step Down DC/DC Controller Datasheet
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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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MB39C502/503/504 High Efficiency Step Down DC/DC Controller Datasheet Description MB39C502 is a single output step down DC/DC controller using external FETs. It achieves the high efficiency with “Enhanced Low Power Mode (LPM) Operation” in light load. In Enhanced LPM, this controller operates that the quiescent current is reduced only 30μA and the switching frequency is fallen by extending on time. These operations enable to improve the efficiency in light load. Internal compensation circuit with current mode architecture and internal boost switch allow reducing the BOM parts and the component area.