3 A step-down monolithic switching regulator

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  • The PM8903A 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).

    The PM8903A features low-resistance integrated nMOS and proprietary pulse-skipping mode for optimum efficiency over all the loading range.
    The voltage mode control loop allows the widest range of output filters. Current sense is internally thermally compensated for optimum precision.
    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.
    The PM8903A 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.
    The PM8903A is available in VFQFPN16 3 x 3 mm.

    主要特性

    • 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
    • 1.1 MHz switching frequency operation
    • PSKIP mode to optimize light load efficiency
    • Embedded bootstrap diode
    • Thermally compensated loss-less current sense across HS and LS MOSFETs
    • OV/UV/OC and overtemperature protection
    • Internal soft-start and soft-stop
    • Interleaving synchronization (up to 2 ICs)
    • Power Good output
    • Shutdown function (< 15 μA quiescent current)
    • VFQFPN16 3 x 3 mm compact package

样片和购买

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PM8903ATR QFN16 3x3 Tape And Reel
批量生产
- - EAR99 PHILIPPINES 查看供货情况

Distributor availability ofPM8903ATR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 4000 1 Order Now
Farnell Element14 EUROPE 3970 1 Order Now

代理商库存报告日期: 2019-10-09

代理商名称

MOUSER

库存

4000

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

3970

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-09

获取样片

PM8903ATR

封装

QFN16 3x3

包装类型

Tape And Reel

单价(US$)

*

Distributor availability ofPM8903ATR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 4000 1 Order Now
Farnell Element14 EUROPE 3970 1 Order Now

代理商库存报告日期: 2019-10-09

代理商名称

MOUSER

库存

4000

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

3970

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-09

供货状态

批量生产

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
PM8903ATR
批量生产
QFN16 3x3 工业 Ecopack2

PM8903ATR

Package:

QFN16 3x3

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN16 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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