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MAX5099 - Automotive Synchronous Buck Converter

Description

The MAX5099 offers a dual-output, high-switching-frequency DC-DC buck converter with an integrated highside switch.

The MAX5099 integrates two low-side MOSFET drivers to allow each converter to drive an external synchronous-rectifier MOSFET.

Features

  • include internal digital soft-start, individual enable for each DC-DC regulator (EN1 and EN2), open-drain power-good outputs (PGOOD1 and PGOOD2), and shutdown input (ON/OFF). Other features of the MAX5099 include overvoltage protection and short-circuit (hiccup current limit) and thermal protection. The MAX5099 is available in a thermally enhanced, exposed pad 5mm x 5mm, 32-pin TQFN package and operates over the automotive -40°C to +125°C temperature range.

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Datasheet preview – MAX5099

Datasheet Details

Part number MAX5099
Manufacturer Maxim Integrated
File Size 440.08 KB
Description Automotive Synchronous Buck Converter
Datasheet download datasheet MAX5099 Datasheet
Additional preview pages of the MAX5099 datasheet.

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Full PDF Text Transcription

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MAX5099 19-4112; Rev 0; 5/08 EVAALVUAAILTAIOBNLEKIT Dual, 2.2MHz, Automotive Synchronous Buck Converter with 80V Load-Dump Protection General Description The MAX5099 offers a dual-output, high-switching-frequency DC-DC buck converter with an integrated highside switch. The MAX5099 integrates two low-side MOSFET drivers to allow each converter to drive an external synchronous-rectifier MOSFET. Converter 1 delivers up to 2A output current, and converter 2 can deliver up to 1A of output current. The MAX5099 integrates load-dump protection circuitry that is capable of handling load-dump transients up to 80V for automotive applications. The load-dump protection circuit utilizes an internal charge pump to drive the gate of an external n-channel MOSFET.
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