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MB39A112 - 3-Channel DC/DC Converter IC

Description

The MB39A112 is a 3-channel DC/DC converter IC using pulse width modulation (PWM) , and the MB39A112 is suitable for down-conversion.

3-channel is built in TSSOP-20P package.

Each channel can be controlled and soft-start.

Features

  • Voltage Triangular wave oscillation frequency fosc (kHz) 1400 1350 1300 1250 1200 1150 1100 1050 1000.
  • 40.
  • 20 0 20 40 Triangular wave oscillation frequency fosc (kHz) VCC = 12 V RT = 10 kΩ CT = 100 pF 1400 1350 1300 1250 1200 1150 1100 1050 100.

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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 SEMICONDUCTOR DATA SHEET DS04-27239-1E ASSP For Power Supply Applications (General-Purpose DC/DC Converter) 3-ch DC/DC Converter IC MB39A112 s DESCRIPTION The MB39A112 is a 3-channel DC/DC converter IC using pulse width modulation (PWM) , and the MB39A112 is suitable for down-conversion. 3-channel is built in TSSOP-20P package. Each channel can be controlled and soft-start. The MB39A112 contains a constant voltage bias circuit for output block, capable of implementing an efficient high-frequency DC/DC converter. It is ideal for built-in power supply such as ADSL modems. s REATURES • Supports for down-conversion (CH1 to CH3) • Power supply voltage range : 7 V to 25 V • Error amplifier threshold voltage : 1.00 V ± 1% (CH1) : 1.
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