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MB39C503 - High Efficiency Step Down DC/DC Controller Datasheet

Download the MB39C503 datasheet PDF. This datasheet also covers the MB39C502 variant, as both devices belong to the same high efficiency step down dc/dc controller datasheet family and are provided as variant models within a single manufacturer 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MB39C502-Cypress.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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MB39C011A 2 ch DC/DC Converter IC Cypress Semiconductor
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Other Datasheets by Cypress (now Infineon)

Part Number Description
MB39C502 High Efficiency Step Down DC/DC Controller Datasheet
MB39C504 High Efficiency Step Down DC/DC Controller Datasheet
MB39C014 1 ch DC/DC Converter IC
MB39C022G Buck DC/DC Converter + Low Noise LDO
MB39C022J Buck DC/DC Converter + Low Noise LDO

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.

View original datasheet text
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.