Datasheet > L5963D-EHT

L5963D-EHT

更新时间： 2024-11-27 01:06:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
45页	936K
描述
Dual monolithic switching regulator with LDO and HSD

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L5963D-EHT 数据手册

L5963

Dual monolithic switching regulator with LDO and HSD

Datasheet - production data

 Extremely low quiescent current in standby

conditions

 Power good / adjustable voltage detector

'!0'03ꢀꢀꢃꢄꢅ

outputs to realize customized power up/down

'!0'03ꢀꢀꢁꢁꢂ

PowerSSO-36

(slug-up)

sequences

PowerSSO-36

(exposed pad)

Description

Features

L5963 is a dual step-down switching regulator

with internal power switches, high side driver and

a low drop-out linear regulator that can operate as

standby regulator or normal LDO.

 Two step-down synchronous switching voltage

regulators with internal power switches:

–

Wide input voltage range (from 3.5 V to 26 V)

All the regulators can be connected directly to the

vehicle battery. In addition to an adjustable

voltage detector, voltage supervisors are

available.

– Internal high-side/ low-side NDMOS

– 1 V minimum output

– 3.0 A load current

– 250 kHz free-run frequency

– 250 kHz < f < 2 MHz synchronization range

– Integrated soft-start

– Independent hardware enable pins

– Independent power supply

– 180° PWM output phase shift

– Programmable switching frequency divider

by 1, 2, 4 or 8 between the two DC/DC

regulators

The two DC-DC converters can work in free-run

condition or synchronize themselves to an

external clock. DC/DCs' PWM outputs have a

180° phase shift.

The high operating frequency allowed by the

synchronization input helps to reduce AM and FM

interferences and grants the use of small and low

cost inductors and capacitors.

– Power good function

This IC finds application in the automotive

segment, where load dump protection and wide

input voltage range are mandatory.

 One standby / linear regulator

– Output voltage programmable with external

resistor divider

A slug-up package option is available for

applications which require heatsink use.

– 250 mA maximum current capability

– Backup function

– Power good function

In standby condition the device guarantees

extremely low quiescent current (25 μA typical @

-40 °C < T < 85 °C)

 One high side driver

– 0.5 V max drop @ 0.5 A

Table 1. Device summary

– Protected against short to ground and

battery, loss of ground and battery,

unsupplied short to battery

Order code

Package

Packing

L5963D-EHX

L5963D-EHT

L5963U-KBX

L5963U-KBT

Tube

 Programmable under voltage battery detector

– Under voltage threshold adjustable through

dedicated pin (VDIN)

PowerSSO36

(exposed pad)

Tape & Reel

Tube

PowerSSO36

(slug-up)

 Load dump protection

Tape & Reel

 Independent thermal protection on all

regulators

 Independent current limit on all regulators

October 2015

DocID028553 Rev 1

1/45

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...45

中文翻译

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与L5963D-EHT相关器件

型号	品牌	获取价格	描述	数据表
L5963D-EHX	STMICROELECTRONICS	获取价格	Dual monolithic switching regulator with LDO and HSD
L5963DN-EHT	STMICROELECTRONICS	获取价格	具有LDO和HSD的双路单片式开关稳压器
L5963DN-EHX	STMICROELECTRONICS	获取价格	具有LDO和HSD的双路单片式开关稳压器
L5963Q-V0T	STMICROELECTRONICS	获取价格	具有LDO和HSD的双路单片式开关稳压器
L5963Q-V0Y	STMICROELECTRONICS	获取价格	具有LDO和HSD的双路单片式开关稳压器
L5963U-KBT	STMICROELECTRONICS	获取价格	Dual monolithic switching regulator with LDO and HSD
L5963U-KBX	STMICROELECTRONICS	获取价格	Dual monolithic switching regulator with LDO and HSD
L5964	STMICROELECTRONICS	获取价格	具有LDO的单片式双路3.5 A步降开关稳压器
L5965	STMICROELECTRONICS	获取价格	汽车视觉和雷达系统的多重电源管理
L5970	STMICROELECTRONICS	获取价格	UP TO 1A STEP DOWN SWITCHING REGULATOR

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