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EVAL5985

Evaluation board for L5985: 2A step-down switching regulator
  • active 活性

The EVAL5985 demonstration board provides the design engineer with a fully functional step-down switching regulator with an output current of up to 2 A. The board integrates STMicroelectronics' L5985 step-down switching regulator, together with all the external components required for a typical application.

The rated voltage of the input capacitor and the Schottky diode rectifier repetitive peak reverse voltage are both 25 V, making the board capable of covering the entire 2.9 V - 18 V input voltage range of the L5985 device.

The board features an external resistor divider (R1 and R2) designed for an output voltage of 3.3 V.

The output voltage can be set to a level from 0.6 V up to the rated voltage of the output capacitor (16 V).

The compensation network on the demonstration board allows the use of MLCC as output filter to keep the loop stable. The inductor saturation current and forward current of the Schottky diode are within the current limit values.

The switching frequency on the demonstration board is set to 500 kHz by means of the R5 resistor connected to pin Fsw.

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数据表

Key Features

  • 2 A DC output current
  • 2.9 V to 18 V input voltage
  • Output voltage adjustable from 0.6 V to 16 V
  • 250 kHz switching frequency, programmable up to 1 MHz
  • Internal soft-start and inhibit
  • Low dropout operation: 100 % duty cycle
  • Zero-load current operation
  • Over-current and thermal protection
  • VFQFPN8 3 mm x 3 mm package

图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DS6002: 2 A step-down switching regulator demonstration board based on the L5985
1.0 185 KB
pdf
DS6002: 2 A step-down switching regulator demonstration board based on the L5985
1.1 183 KB

样品 & 购买

顶部
产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVAL5985ActiveL5985-No availability reported, please contact our Sales officeNot compliant-

(*) 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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