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STEVAL-ISA067V1

Dual step-down controller with auxiliary voltages demonstration board based on the PM6681A for industrial system power
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This demonstration board is based on the PM6681A, a dual step-down controller with adjustable output voltages that can be used in industrial power systems. The PM6681A demonstration board allows testing all the device's functions and provides two switching sections, with (typically) 3.3 V (OUT1) and 1.8 V (OUT2) outputs from 5.5 V to 36 V input voltage.

The typical operating switching frequency of the two available sections is 200 kHz/300 kHz, respectively. Each switching section delivers more than 2.5 A output current.

An internal linear regulator provides a fixed 5 V output voltage. Another internal linear regulator provides an adjustable output voltage (default 2.5 V). Both linear regulators can deliver up to 100 mA peak current.

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Data Brief

Key Features

  • 5.5 V to 36 V input voltage range
  • Vout1: 3.3 V, Iout1 > 2.5 A (or adjustable output voltage)
  • Vout2: 1.8 V, Iout2 > 2.5 A (or adjustable output voltage)
  • 0.9 - 3.3 V adjustable LDO delivers 100 mA peak current
  • 5 V LDO delivers 100 mA peak current
  • 1.237 V ± 1% reference voltage available
  • Loss-less current sensing using low-side MOSFET RDS(on)
  • Negative current limit
  • Soft-start internally fixed at 2 ms
  • Soft output discharge
  • Latched UVP
  • Non-latched OVP
  • Selectable pulse-skipping at light loads
  • Selectable minimum frequency (33 kHz) in pulse-skip mode
  • 4 mW maximum quiescent power
  • Independent power-good signals
  • Output voltage ripple compensation
  • RoHS compliant

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图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DB0819: Dual step-down controller with auxiliary voltages demonstration board based on the PM6681A for industrial system power
1.1 199 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
zip
Gerber files for STEVAL-ISA067V1 board
1.0 388 KB

Bill of Materials

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pdf
BOM for STEVAL-ISA067V1 board
1.0 53 KB

Schematic Pack

描述 版本 大小
pdf
Board schematics for STEVAL-ISA067V1 board
1.0 57 KB

样品 & 购买

顶部
产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA067V1ActivePM6681A-Distributor reported inventory date: 2014-04-18
Distributor NameRegionStockMin. order
P&SOrder NowASIA/PACIFIC11
Ecopack2-

(*) 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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