ST Life.augmented

L7985

2A step-down switching regulator
  • active 活性

The L7985/A is a step-down switching regulator with a 2.5 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2 A current to the load depending on the application conditions.

The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The QFN and the HSOP packages with exposed pad allow the reduction of RthJAdown to 60 °C/W and 40 °C/W respectively.

pdf Please read
Errata Sheet
pdf 下载
数据表

Key Features

  • 2 A DC output current
  • 4.5 V to 38 V input voltage
  • Output voltage adjustable from 0.6 V
  • 250 KHz switching frequency, programmable up to 1 MHz
  • Internal soft-start and enable
  • Low dropout operation: 100% duty cycle
  • Voltage feed-forward
  • Zero load current operation
  • Overcurrent and thermal protection
  • VFQFPN 3 x 3 - 10L and HSOP8 package

图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DS8733: 2 A step-down switching regulator
6.0 1,109 KB

Design Notes & Tips

描述 版本 大小
pdf
DN0011: ST1S03 alternative topology: Using a buck in a negative buck-boost configuration
1.0 359 KB

Related Tools and Software

Related Tools and Software

产品型号 描述
STEVAL-ISA097V1 2 A step-down switching demonstration board based on the L7985 in DFN10 package
STEVAL-ISA098V1 2 A step-down switching demonstration board based on the L7985A in HSOP8 package

Publications and Collaterals

Flyer

描述 版本 大小
pdf
DC-DC converters
554 KB

样品 & 购买

顶部
产品型号 Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
L7985AActivePowerSO-8Tube_-.664Distributor reported inventory date: 2014-10-25
Distributor NameRegionStockMin. order
AVNETOrder NowAMERICA19950
RUTRONIKOrder NowEUROPE1010100
MOUSEROrder NowWORLDWIDE12911
Ecopack2-
L7985ATRActivePowerSO-8Tape And Reel_Free Samples.664Distributor reported inventory date: 2014-10-25
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA75002500
ARROWOrder NowEUROPE25000
RUTRONIKOrder NowEUROPE50002500
DIGIKEYOrder NowWORLDWIDE151031
MOUSEROrder NowWORLDWIDE18601
Ecopack2-
L7985TRActiveVDFPN 10 3x3x1.0Tape And Reel_-.63No availability reported, please contact our Sales officeEcopack2PDF
XML

(*) 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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