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MB39A126 - DC/DC Converter IC

Download the MB39A126 datasheet PDF. This datasheet also covers the MB39A125 variant, as both devices belong to the same dc/dc converter ic family and are provided as variant models within a single manufacturer datasheet.

Description

MB39A125/126 is a DC/DC converter IC for charging Li-ion battery, which is suitable for down-conversion, and uses pulse width modulation (PWM) for controlling the output voltage and current independently.

Features

  • S.
  • High efficiency : 97% (MAX) Built-in two constant current control circuits Analog control of the charging current value (+INE1, +INE2 terminal) Built-in AC adapter voltage detection function (ACOK, XACOK terminal) (Continued).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MB39A125_Fujitsu.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MB39A123 6 ch DC/DC Converter Fujitsu Media Devices
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MB39A115 5 ch DC/DC Converter IC with Synchronous Rectification Fujitsu Media Devices Limited
MB39A136 2ch PFM/PWM DC/DC Converter IC Cypress

Other Datasheets by Fujitsu Semiconductor Limited

Part Number Description
MB39A125 DC/DC Converter IC
MB39A102 4-Channel DC/DC Converter IC
MB39A103 4-Channel DC/DC Converter IC
MB39A104 2-Channel DC/DC Converter IC
MB39A105 1-Channel DC/DC Converter IC

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
FUJITSU SEMICONDUCTOR DATA SHEET DS04-27248-1E ASSP for Power Supply Applications (Secondary battery) DC/DC Converter IC for Charging Li-ion Battery MB39A125/126 ■ DESCRIPTION MB39A125/126 is a DC/DC converter IC for charging Li-ion battery, which is suitable for down-conversion, and uses pulse width modulation (PWM) for controlling the output voltage and current independently. This IC integrates the build-in comparator for the voltage detection of the AC adapter, and selects the AC adapter or battery automatically for power supply to the system. Provides a wide range of power supply voltage, low standby current, and high efficiency, which makes them ideal as a built-in charging device in products such as notebook PC.
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