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EVAL5986

2.5 A step-down switching regulator demonstration board based on the L5986, L5986A
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The EVAL5986/A demonstration board provides the design engineer with a fully functional stepdown switching regulator with an output current of up to 2.5 A. The board integrates STMicroelectronics’ L5986\A 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 L5986/A device.

The board features an external resistor divider (R1 and R2) designed for an output voltage of 1.8 V.

The output voltage can be set to a level from 0.6 V up to the input voltage.

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.

pdf データシート
Data Brief

Key Features

  • 2.5 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
  • Overcurrent and thermal protection
  • VFQFPN8 3 mm x 3 mm package or HSOP8 for the L5986A

デザイン・リソース

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Technical Documentation

Product Specifications

Description Version Size
pdf
DB0909: 2.5 A step-down switching regulator demonstration board based on the L5986, L5986A
1.1 283 KB

サンプル& 購入

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製品型名 Marketing StatusCore ProductOrder From STUnit Price (US$)*
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Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVAL5986ActiveL5986-No availability reported, please contact our Sales officeNot compliant-

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(**)弊社ホームページで入手できるMaterial Declaration(材料宣誓書)のフォームは、各パッケージ・タイプで最も一般的に使用されるパッケージに基づいた包括的な文書です。そのため、特定のデバイスについて100%正確ではない可能性があります。特定のデバイスに関する情報については、 弊社セールスオフィス にお問合せ下さい。
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