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  • The device is a high performance high voltage converter that combines a 730 V rugged power MOSFET with PWM control. The device embeds high voltage startup and current sense circuitry, which helps reduce the number of components in a BoM. Frequency jittering spreads the EMI and allows the use of a smaller filter. The burst mode feature provides very low input power consumption at light loads.

    Key Features

    • 730 V avalanche rugged power MOSFET
    • PWM controller
    • 3.3 V reference voltage
    • Frequency jittering
    • 40 mW no load input power at 230 VAC
    • Short-circuit protection
    • Thermal shutdown

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Evaluation Tools

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      15 V/200 mA buck converter based on VIPER122

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS13008
      High voltage converter
      1.0
      574.45 KB
      PDF
      DS13008

      High voltage converter

    • Description Version Size Action
      AN4564
      Is a positive power supply mandatory for my application, or could a negative output work also?
      1.0
      384.04 KB
      PDF
      AN4564

      Is a positive power supply mandatory for my application, or could a negative output work also?

    • Description Version Size Action
      AN5401
      15 V, 3 W buck converter based on VIPER122
      2.0
      1.08 MB
      PDF
      AN5401

      15 V, 3 W buck converter based on VIPER122

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      VIPER122 PSPICE model 1.0
      478.21 KB
      ZIP

      VIPER122 PSPICE model

Publications and Collaterals

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Power Management Guide 07.2020
      7.12 MB
      PDF
      VIPerPlus - Bring a Plus to your SMPS design 05.2020
      481.54 KB
      PDF
      VIPerPlus evaluation boards 05.2018
      1,002.52 KB
      PDF

      Electric vehicle (EV) ecosystem

      Power Management Guide

      VIPerPlus - Bring a Plus to your SMPS design

      VIPerPlus evaluation boards

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VIPER122LSTR
Active
SSOP 10 Industrial Ecopack2

VIPER122LSTR

Package:

SSOP 10

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Marketing Status
RDS(on) (Ω) (max)
Transistor Breakdown Voltage (V) (min)
Drain Current (A) (nom)
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
VIPER122LSTR Available at 5 distributors

Distributor availability ofVIPER122LSTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7263 1 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 7068 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

7263

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7068

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SSOP 10 Tape And Reel
Active
24 730 0.4 EAR99 CHINA 0.301 / 1k

VIPER122LSTR

Package

SSOP 10

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.301 / 1k

Distributor availability ofVIPER122LSTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7263 1 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 7068 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

7263

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7068

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.301 / 1k

RDS(on) (Ω) (max)

24

Transistor Breakdown Voltage (V) (min)

730

Drain Current (A) (nom)

0.4

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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