Datasheet > L5953_07

L5953_07

更新时间： 2024-09-30 03:49:47

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		开关
页数	文件大小	规格书
31页	379K
描述
Multiple switching voltage regulator

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中文翻译

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数据手册

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L5953_07 数据手册

L5953

Multiple switching voltage regulator

Features

■ PWM: adjustable 2.5/10V - 1A switching

voltage regulator

■ External POWER MOS ability for output

current enhancement

■ Synchronization function

■ REG1- Linear low drop 3.3/5V - 250mA STBY

voltage regulator (low current consumption)

with RESET

PowerSO36

■ REG2- Linear voltage regulator 1.5V to 3.3V

externally adjustable - 300mA maximum

current

Protections

■ HSD1 : 500mA High side driver

■ HSD2 : 200mA High side driver

■ SPI Interface

■ Over voltage protection

■ Internal current limiting

■ Thermal shutdown

■ ESD

■ SPI Diagnostics HSD1, HSD2

■ Double switching frequency SPI selectable

■ Double inpuT LVW

Description

SPI functions

■ Input controls

The L5953 is the integration of one switching

regulator, two linear voltage regulators, two low

voltage warnings and two high side drivers. It has

a stand-by operation mode (low current

consumption) where only the stand-by voltage

regulator plus the low voltage warnings are active.

The other regulators and high side drivers are

controlled by the SPI interface.

– Turn-on/off PWM

– Turn-on/off REG2

– Turn-on/off HSD1

– Turn-on/off HSD2

– Switching frequency selection f1- f2

■ Output functions:

– HSD1 & HSD2 short to gnd, open load and

short to battery (Test mode)

– Thermal warning

Table 1.

Device summary

Part number

Package

Packing

L5953

PowerSO36

Tray

September 2007

Rev 2

1/31

www.st.com

12 3 4 5 6 7...31

中文翻译

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