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UM3433 - 600kHz Step-Up DC-DC Converter

General Description

The UM3433 is synchronous rectified, fixed frequency, step-up DC/DC converter series delivering high efficiency in a low profile SOT23-6 package.

It is available both in 3.3V/3.0V fixed output and adjustable output.

Key Features

  • low shutdown current of under 1 μA. With inrush current limiting and soft start built inside, it also.

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Datasheet Details

Part number UM3433
Manufacturer Union Semiconductor
File Size 490.99 KB
Description 600kHz Step-Up DC-DC Converter
Datasheet download datasheet UM3433 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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UM3433 600mA, 600kHz Step-Up DC-DC Converter UM3433 SOT23-6 General Description The UM3433 is synchronous rectified, fixed frequency, step-up DC/DC converter series delivering high efficiency in a low profile SOT23-6 package. It is available both in 3.3V/3.0V fixed output and adjustable output. With an internal NMOS switch and PMOS synchronous rectifier and high switching frequency of 600KHz, the UM3433 is capable of supplying 3.3V output at 100mA from a single AA cell input using low profile inductors and ceramic capacitors. Current mode PWM control with internal compensation cuts external parts count thereby saving BOM cost and PCB real estate. At light loads, UM3433 enters automatically into power saving mode to keep high efficiency at light load.