12 V 140 mA 30 kHz non-isolated buck topology regulator based on VIPer06XN

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.

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




Technical Documentation

Product Specifications
Description Version Size
DB2007 DB2007: 12 V 140 mA 30 kHz non-isolated buck topology regulator based on VIPer06XN 1.0 185 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-ISA130V1 gerber files 1.0 64 KB
Bill of Materials
Description Version Size
Schematic Pack
Description Version Size
STEVAL-ISA130V1 schematics 1.0 107 KB


License Agreement
Description Version Size
Evaluation products license agreement 1.4 128 KB
Support & Community
Featured Products

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA130V1 VIPer06XN Active 49.00 1 NEC EAR99 ITALY MORE INFO Buy Direct Add to cart No availability reported, please contact our Sales office

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISA130V1 ActiveCARDIndustrialEcopack2

(**) The Material Declaration forms available on st.com 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.