Datasheet > A5975D

A5975D

更新时间： 2023-12-20 18:46:12

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		开关稳压器
页数	文件大小	规格书
50页	2261K
描述
最高3 A的降压开关稳压器，用于汽车应用

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A5975D 数据手册

A5975D

Up to 3 A step-down switching regulator

for automotive applications

Datasheet

- production data

Application

•

Dedicated to automotive applications

Description

HSOP8 - exposed pad

The A5975D is a step-down monolithic power

switching regulator with a minimum switch current

limit of 3.75 A, it is therefore able to deliver up to 3

A DC current to the load depending on the

application conditions. The output voltage can be

set from 1.235 V to 35 V. The high current level is

also achieved thanks to a HSOP8 package with

exposed frame, that allows to reduce the R_THJ-A

down to approximately 40 °C/W. The device uses

an internal P-channel DMOS transistor (with a

typical R_DS(on)of 250 mΩ) as switching element

to minimize the size of the external components.

An internal oscillator fixes the switching frequency

at 250 kHz. Having a minimum input voltage of

only 4 V, it fits automotive applications requiring

device operation even in cold crank conditions.

Pulse-by-pulse current limit with the internal

frequency modulation offers an effective constant

current short-circuit protection.

Features

•

Qualified following the AEC-Q100

requirements (see PPAP for more details)

•

3 A DC output current

Operating input voltage from 4 V to 36 V

3.3 V / ( 2%) reference voltage

Output voltage adjustable from 1.235 V to 35 V

Low dropout operation: 100% duty cycle

250 kHz internally fixed frequency

Voltage feed-forward

Zero load current operation

Internal current limiting

Inhibit for zero current consumption

Synchronization

Protection against feedback disconnection

Thermal shutdown

Figure 1. Application schematic

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May 2023

DocID018760 Rev 2

1/50

This is information on a product in full production.

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