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MAX5092 - (MAX5092 / MAX5093) LDOs

Description

The MAX5092A/MAX5092B/MAX5093A/MAX5093B lowquiescent-current, low-dropout (LDO) regulators contain simple boost preregulators operating at a high frequency.

Features

  • include output overload, short-circuit, and thermal protection. The MAX5092_/MAX5093_ are available in a thermally enhanced, 16-pin 5mm x 5mm thin QFN package and can dissipate up to 2.7W at +70°C on a multilayer PC board. Features.
  • Wide Operating Input Voltage Range: 3.5V to 72V with a 4V Startup Voltage.
  • LDO Output Regulates to 5V Seamlessly from an Input Voltage of 3.5V to 72V.
  • Up to 250mA Output Current.
  • Preset 3.3V, 5V, or Externally Programmable LDO Out.

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Full PDF Text Transcription

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www.DataSheet4U.com 19-0659; Rev 0; 10/06 KIT ATION EVALU E L B AVAILA 4V to 72V Input LDOs with Boost Preregulator General Description The MAX5092A/MAX5092B/MAX5093A/MAX5093B lowquiescent-current, low-dropout (LDO) regulators contain simple boost preregulators operating at a high frequency. The devices seamlessly provide a preset 3.3V (MAX5092A/MAX5093A) or 5V (MAX5092B/MAX5093B) LDO output voltage from an automotive cold-crank through load-dump (3.5V to 80V) input voltage conditions. The MAX5092_/MAX5093_ deliver up to 250mA with excellent load and line regulation. During normal operation, when the battery is healthy, the boost preregulator is completely turned off, reducing quiescent current to 65µA (typ). This makes the devices suitable for always-on power supplies.
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