Datasheet > PM8903TR

PM8903TR

更新时间： 2024-11-13 01:21:43

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
34页	2132K
描述
3 A step-down monolithic switching regulator

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

PM8903TR 数据手册

PM8903

3 A step-down monolithic switching regulator

Features

■ Integrated 35 mΩ MOSFETs for high efficiency

■ 3 A continuous output current

■ 2.8 V to 6 V input voltage (VIN)

■ 2.9 V to 5.5 V supply voltage (VCC)

■ Adjustable output voltage down to 0.6 V

■ 1% output voltage accuracy

VFQFPN16 3x3 mm

Description

■ 1.1 MHz switching frequency operation

■ PSKIP mode to optimize light load efficiency

■ Embedded bootstrap diode

The PM8903 is a high efficiency monolithic step-

down switching regulator designed to deliver up to

3 A continuous current. The IC operates from 2.8

V to 6 V input voltage (VIN).

■ Thermally compensated loss-less current

sense across HS and LS MOSFETs

The PM8903 features low-resistance integrated

nMOS and proprietary pulse-skipping mode for

optimum efficiency over all the loading range.

■ OV/UV/OC and overtemperature protection

■ Internal soft-start and soft-stop

■ Interleaving synchronization (Up to 2 ICs)

■ Power Good output

The voltage mode control loop allows the widest

range of output filter. Current sense is internally

thermally compensated for optimum precision.

■ Shutdown function (<15 μA quiescent current)

■ VFQFPN16 3 x 3 mm compact package

The integrated 0.6 V reference allows the

regulation of output voltages with 1% accuracy

over temperature variations. Switching frequency

is typically set to 1.1 MHz and can be

programmed to 0.8 MHz or 1.0 MHz. Out of phase

synchronization allows the reduction of input RMS

current.

Applications

■ Subsystem power supply

■ CPU, DSP and FPGA power supply

■ Distributed power supply

The PM8903 provides precise dual-threshold

overcurrent protection as well as over /

undervoltage and overtemperature protection.

PGOOD output easily provides real-time

information on the output voltage.

■ General DC-DC converters

The PM8903 is available in VFQFPN16 3 x 3 mm.

Table 1.

Device summary

Order codes

Package

Packing

PM8903

VFQFPN16 3x3 mm

Tube

PM8903TR

Tape and reel

February 2012

Doc ID 022748 Rev 1

1/34

www.st.com

12 3 4 5 6 7...34

中文翻译

下载PDF

PM8903TR 替代型号

型号	品牌	替代类型	描述	数据表
PM8903	STMICROELECTRONICS	完全替代	3 A step-down monolithic switching regulator
PM8903ATR	STMICROELECTRONICS	类似代替	3 A step-down monolithic switching regulator

与PM8903TR相关器件

型号	品牌	获取价格	描述	数据表
PM8908	STMICROELECTRONICS	获取价格	Monolithic buck converter for DDR memory termination
PM8908TR	STMICROELECTRONICS	获取价格	Monolithic buck converter for DDR memory termination
PM891	ARTESYN	获取价格	Single and dual output 10 to 12 Watt Nominal input DC/DC converters
PM8918/002	ETC	获取价格	1 PROBE
PM892	ETC	获取价格	Analog IC
PM-9	GAMEWELL-FCI	获取价格	Transponder Voice Gateway
PM900	ARTESYN	获取价格	Single and dual output 5 to 6 Watt Nominal input DC/DC converters
PM-9001	PMI	获取价格	1000 Base-T MODULES ISOLATION TRANSFORMERS WITH FILTERS
PM-9002	PMI	获取价格	1000 Base-T MODULES ISOLATION TRANSFORMERS WITH FILTERS
PM901	ARTESYN	获取价格	Single and dual output 5 to 6 Watt Nominal input DC/DC converters

与PM8903TR相关文章

国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

23
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

8
AMD宣布全球裁员约1000人，调整战略聚焦增长
2024-11-14

9
英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

32

产品中心

服务支持

精选活动

关于我们

帮助中心

PM8903TR

PM8903TR 数据手册

PM8903TR 替代型号

与PM8903TR相关器件

与PM8903TR相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

PM8903TR

PM8903TR 数据手册

PM8903TR 替代型号

与PM8903TR相关器件

与PM8903TR相关文章

您还可以找

您在本页遇到什么问题？