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ST1S14

Up to 3 A step down switching regulator
  • active 活性

The ST1S14 is a step-down monolithic power switching regulator able to deliver up to 3 A DC current to the load depending on the application conditions. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the Rth(JA)down to approximately 40 °C/W. The output voltage can be set from 1.22 V. The device uses an internal N-channel DMOS transistor (with a typical RDS(on)of 200 mΩ) as the switching element to minimize the size of the external components. The internal oscillator fixes the switching frequency at 850 kHz. Power good open collector output validates the regulated output voltage as soon as it reaches the regulation. Pulse-by-pulse current limit offers an effective constant current short-circuit protection. Current foldback decreases overstress in a persistent short-circuit condition.

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Errata Sheet
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数据表

Key Features

  • 3 A DC output current
  • Operating input voltage from 5.5 V to 48 V
  • 850 kHz internally fixed switching frequency
  • Internal soft-start
  • Power good open collector output
  • Current mode architecture
  • Embedded compensation network
  • Zero load current operation
  • Internal current limiting
  • Inhibit for zero current consumption
  • 2 mA maximum quiescent current over temperature range
  • 250 mΩ typ. RDS(on)
  • Thermal shutdown

线路 图表

图案 资源

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Technical Documentation

Product Specifications

描述 版本 大小
pdf
DS6966: Up to 3 A step-down switching regulator
2.0 2,475 KB

User Manual

描述 版本 大小
pdf
UM1478: STEVAL-IFN003V1: DC PMSM FOC motor drive based on the L6230 and STM32
1.0 1,176 KB

Publications and Collaterals

Flyer

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pdf
DC-DC converters
554 KB

样品 & 购买

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产品型号 Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
ST1S14PHRActivePowerSO-8Tape And Reel_Free Samples.806Distributor reported inventory date: 2014-11-26
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA83472500
AVNETOrder NowAMERICA30
P&SOrder NowASIA/PACIFIC501
ARROWOrder NowEUROPE388400
Farnell Element14Order NowEUROPE2101
DIGIKEYOrder NowWORLDWIDE40171
MOUSEROrder NowWORLDWIDE93571
Ecopack2PDF
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(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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