RTQ2940-QA Datasheet PDF (Asynchronous Step-Down Converter)

RTQ2940-QA - Asynchronous Step-Down Converter

Description

The RTQ2940 is a 0.5A, high-efficiency, peak current mode control asynchronous step-down converter which is optimized for automotive applications.

The device operates with input voltages from 4V to 42V and is protected from load dump transients up to 45V, eases input surge protection design.

Features

AEC-Q100 Grade 1 Qualified.
FMEA Compliant Pinout.
Wide Input Voltage Range  4.5V to 42V  4V to 42V (Soft-start is finished).
Wide Output Voltage Range : 0.8V to VIN.
0.8V ±1.5% Reference Accuracy.
Peak Current Mode Control.
Integrated 170mΩ High-Side MOSFET.
Low Quiescent Current : 90μA.
Low Shutdown Current : 1.3μA.
Adjustable Switching : 100kHz to 2.5MHz.
Synchronizable Switching : 300kHz to 2.2MHz.
Power Saving Mode (PSM) at Ligh.

Datasheet Details

Part number	RTQ2940-QA
Manufacturer	Richtek
File Size	739.56 KB
Description	Asynchronous Step-Down Converter
Datasheet	RTQ2940-QA Datasheet
Additional preview pages of the RTQ2940-QA datasheet.

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Full PDF Text Transcription

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® RTQ2940-QA 42VIN, 0.5A, Asynchronous Step-Down Converter with Low Quiescent Current General Description The RTQ2940 is a 0.5A, high-efficiency, peak current mode control asynchronous step-down converter which is optimized for automotive applications. The device operates with input voltages from 4V to 42V and is protected from load dump transients up to 45V, eases input surge protection design. The device can program the output voltage between 0.8V to VIN. The low quiescent current design with the integrated low RDS(ON) of high-side MOSFET achieves high efficiency over the wide load range. The peak current mode control with simple external compensation allows the use of small inductors and results in fast transient response and good loop stability.

Published: Sep 10, 2023 |