STMicroelectronics A7985A 2 A Step-Down Switching Regulator Datasheet

This document provides preliminary information on a new product currently in development or undergoing evaluation. Details are subject to change.


STMicroelectronics A7985A 2 A Step-Down Switching Regulator Datasheet - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
45
File format
PDF
File size
1.2 MB
Published
10 August, 2012
Updated
28 September, 2023
MD5 checksum
03C447CF8910F1C60F6B2AB7304C4ACE

About this manual

The A7985A is a step-down switching regulator with a 2.5 A current limited embedded power MOSFET, capable of delivering up to 2 A to the load. It features an input voltage range of 4.5 V to 38 V and an adjustable output voltage starting from 0.6 V. The device operates with a default switching frequency of 250 kHz, programmable up to 1 MHz, and includes internal soft-start and enable functions.

What's inside

  • Pin settings
  • Maximum ratings
  • Thermal data
  • Electrical characteristics
  • Functional description
  • Application information
  • Application ideas
  • Package mechanical data
  • Order codes

Specifications

Output current2 A
Input voltage range4.5 V to 38 V
Output voltage range0.6 V to V IN
Switching frequency250 kHz to 1 MHz
Maximum limiting current2.5 A

Frequently asked questions

What is the switching frequency of the A7985A?

The device works at a free-running frequency of 250 kHz, which can be increased by connecting an external resistor up to 1 MHz.

What is the minimum output voltage?

The output voltage can be set starting from 0.6 V.

Is the A7985A qualified for automotive applications?

Yes, it is qualified following AEC-Q100 requirements.

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