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RAA212422 - synchronous buck regulator

Description

.

2.

8 2.1 Absolute Maximum Ratings

Features

  • a PFM mode for improved efficiency at light load. This feature can be disabled if forced PWM mode is desired. It switches at a default frequency of 500kHz; however, it can also be programmed using an external resistor from 300kHz to 2MHz. Other features include programmable soft-start and hiccup overcurrent protection. The low VIN buck regulator operates at 1MHz switching frequency, which provides fast load transient response allowing the use of small inductors. Because the high-side MOSFET of t.

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Datasheet Details

Part number RAA212422
Manufacturer Renesas
File Size 2.13 MB
Description synchronous buck regulator
Datasheet download datasheet RAA212422 Datasheet
Additional preview pages of the RAA212422 datasheet.

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Full PDF Text Transcription

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DATASHEET RAA212422 Dual channel 40V 1.1A and 5.5V 1.5A synchronous buck regulators FN9326 Rev.2.00 Feb 27, 2020 The RAA212422 is a dual output regulator combining a 1.1A synchronous buck regulator with an input range of 3V to 40V with a 1.5A synchronous buck regulator with an input voltage range of 2.7V to 5.5V. Because both high-side and low-side MOSFETs are integrated for both regulators, the RAA212422 provides an easy-to-use, high-efficiency, and low BOM-count solution for a variety of applications. Both regulators feature internal and external compensation, thermal shutdown, and power-good functions. The wide VIN buck regulator features a PFM mode for improved efficiency at light load. This feature can be disabled if forced PWM mode is desired.
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