ST Life.augmented


12 V 140 mA 30 kHz non-isolated buck topology regulator based on VIPer06XN
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The STEVAL-ISA130V1 demonstration board implements a non-isolated buck topology regulator using the VIPer06, which supplies a 12 V output at up to 140 mA with an operating frequency of 30 kHz.

The output voltage of this power supply can be easily set by changing the value of one resistor.

The circuit can be powered by either 85 V to 265 V AC or 100 V to 375 V DC.

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Data Brief

Key Features

  • 800 V avalanche-rugged power section
  • PWM operation current mode controller
  • Limiting current with adjustable set point
  • Fixed frequency with jitter for EMI improvement
  • Operating frequency: 30 kHz
  • Input voltage range: 85 V to 265 V AC or 100 V to 375 V DC
  • Low power application without auxiliary winding
  • No load consumption below 30 mW @ 265 Vac
  • On-board soft-start
  • Auto-restart after a fault condition
  • Feedback disconnection protection
  • Hysteretic thermal shutdown
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB2007: 12 V 140 mA 30 kHz non-isolated buck topology regulator based on VIPer06XN
1.0 186 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ISA130V1 gerber files
1.0 65 KB

Bill of Materials

Description Version Size
1.0 52 KB

Schematic Pack

Description Version Size
STEVAL-ISA130V1 schematics
1.0 108 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA130V1ActiveVIPer06XNBuy Direct49Distributor reported inventory date: 2016-02-29
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.