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MB3889 Key Features

  • Built-in timer-latch overcurrent protection circuit (requiring no current sense resistor) Built-in timer-latch overvolta
  • Error amplifier threshold voltage: 1.23 V ± 1 % (0 °C to + 85 °C)
  • Support for frequency setting using an external resistor (Frequency setting capacitor integrated)
  • Oscillation frequency range: 100 kHz to 500 kHz
  • Built-in circuit for load-independent soft-start and discharge control
  • Built-in totem-pole output for Nch MOS FET

Related Fujitsu Semiconductor Limited Datasheets

Part Number Description
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MB3883 6-ch DC/DC Converter
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MB3886 2-Channel DC/DC Converter IC

MB3889 Description

The MB3889 is a symmetrical-phase type of two-channel, DC/DC converter IC using pulse width modulation (PWM) , incorporating an overcurrent protection circuit (requiring no current sense resistor) and an overvoltage protection circuit. Providing high output driving capabilities, the MB3889 is suitable for down-conversion. The MB3889 adopts both synchronous rectification to provide high efficiency and symmetrical...