Datasheet > A6986H

A6986H

更新时间： 2022-05-14 22:21:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
71页	18026K
描述
Automotive 38 V, 2 A synchronous step-down switching regulator with 30 Î¼A

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A6986H 数据手册

A6986H

Datasheet

Automotive 38 V, 2 A synchronous step-down switching regulator with 30 μA

quiescent current

Features

•

AEC-Q100 qualified

2 A DC output current

4 V to 38 V operating input voltage

Low consumption mode or low noise mode

30 µA I_Qat light-load (LCM V_OUT= 3.3 V)

8 µA I_Q-SHTDWN

Adjustable f_SW(250 kHz - 2 MHz)

Fixed output voltage (3.3 V and 5 V) or adjustable from 0.85 V to V_IN

Embedded output voltage supervisor

Synchronization

Adjustable soft-start time

Internal current limiting

Overvoltage protection

Output voltage sequencing

Peak current mode architecture

R_{DS(on) HS}= 180 mΩ, R_{DS(on) LS}= 150 mΩ

Thermal shutdown

Product status link

Applications

A6986H

•

Designed for automotive systems

Battery powered applications

Car body applications (LCM)

Car audio and low noise applications (LNM)

Description

The A6986H automotive grade device is a step-down monolithic switching regulator

able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.85 V to

VIN. The 100% duty cycle capability and the wide input voltage range meet the cold

crank and load dump specifications for automotive systems. The “low consumption

mode” (LCM) is designed for applications active during car parking, so it maximizes

the efficiency at light-load with controlled output voltage ripple. The “low noise mode”

(LNM) makes the switching frequency constant and minimizes the output voltage

ripple overload current range, meeting the low noise application specification like car

audio. The output voltage supervisor manages the reset phase for any digital load

(µC, FPGA). The RST open collector output can also implement output voltage

sequencing during the power-up phase. The synchronous rectification, designed for

high efficiency at medium - heavy load, and the high switching frequency capability

make the size of the application compact. Pulse by pulse current sensing on both

power elements implements an effective constant current protection.

DS12861 - Rev 3 - August 2020

www.st.com

For further information contact your local STMicroelectronics sales office.

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