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KB3440 - Micropower Synchronous Buck-Boost DC/DC Converter

General Description

The kB3440 is a high efficiency, fixed frequency, BuckBoost DC/DC converter that operates from input voltages above, below or equal to the output voltage.

Key Features

  • include a 1µA shutdown, soft-start control, thermal shutdown and current limit. The kB3440 is available in the 10-pin thermally enhanced MSOP and (3mm × 3mm) DFN packages.

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Datasheet Details

Part number KB3440
Manufacturer Kingbor Technology
File Size 235.77 KB
Description Micropower Synchronous Buck-Boost DC/DC Converter
Datasheet download datasheet KB3440 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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Kingbor Technology Co.,Ltd TEL:(86)0755-26508846 FAX:(86)0755-26509052 kB3440 Micropower Synchronous Buck-Boost DC/DC Converter DESCRIPTION The kB3440 is a high efficiency, fixed frequency, BuckBoost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range. The device includes two 0.191 N-channel MOSFET switches and two 0.221 P-channel switches. Switching frequencies up to 2MHz are programmed with an external resistor and the oscillator can be synchronized to an external clock.