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LTC3672B-2 - Monolithic Fixed-Output 400mA Buck Regulator

Description

The LTC®3672B-2 is a triple power supply composed of a 400mA synchronous buck regulator and two 150mA low-dropout linear regulators (LDOs).

Constant-frequency 2.25MHz operation is maintained down to very light loads.

Features

  • n Triple Output Supply From a Single 2.9V to 5.5V Input n Buck DC/DC: Fixed 1.2V Output, Up to 400mA n LDO1: Fixed 2.8V Output, Up to 150mA n LDO2: Fixed 1.8V Output, Up to 150mA n ±2.5% Reference Accuracy n Constant-Frequency 2.25MHz Operation n Minimum External Component Count n Current Mode Operation for Excellent Line and Load Transient Response n Internal Soft-Start for Each Output n Single Enable Pin Turns On/Shuts Down All Three Outputs n Tiny 2mm × 2mm × 0.75mm DFN Package.

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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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LTC3672B-2 Monolithic Fixed-Output 400mA Buck Regulator with Dual 150mA LDOs in 2mm × 2mm DFN FEATURES n Triple Output Supply From a Single 2.9V to 5.5V Input n Buck DC/DC: Fixed 1.2V Output, Up to 400mA n LDO1: Fixed 2.8V Output, Up to 150mA n LDO2: Fixed 1.8V Output, Up to 150mA n ±2.5% Reference Accuracy n Constant-Frequency 2.25MHz Operation n Minimum External Component Count n Current Mode Operation for Excellent Line and Load Transient Response n Internal Soft-Start for Each Output n Single Enable Pin Turns On/Shuts Down All Three Outputs n Tiny 2mm × 2mm × 0.
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