Datasheet > L5963U-KBT

L5963U-KBT

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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L5963U-KBT 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L5963U-KBT相关器件

型号	品牌	获取价格	描述	数据表
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
L5970AD	STMICROELECTRONICS	获取价格	1.5A SWITCH STEP DOWN SWITCHING REGULATOR
L5970ADTR	STMICROELECTRONICS	获取价格	1.5A SWITCH STEP DOWN SWITCHING REGULATOR
L5970D	STMICROELECTRONICS	获取价格	UP TO 1A STEP DOWN SWITCHING REGULATOR
L5970D_07	STMICROELECTRONICS	获取价格	Up to 1A step down switching regulator
L5970D_0710	STMICROELECTRONICS	获取价格	Up to 1A step down switching regulator
L5970D013	STMICROELECTRONICS	获取价格	UP TO 1A STEP DOWN SWITCHING REGULATOR

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