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  • TSM108 is a step-down PWM controller designed to drive an external P-channel MOSFET, providing for constant voltage and constant current regulations in battery charger applications.

    TSM108 can easily be configured for very wide voltage and current needs.
    It has been realized in rugged BCD technology and includes a PWM generator, Voltage and Current control loops, a precise Voltage Reference, and a Gate Driver. The device can sustain 60V on Vcc, and therefore meet the standard Load Dump requirements of the 12V cars battery.
    On boards there are other security functions which lock the external power in OFF state: OVLO (Over Voltage Lockout) and UVLO (Under Voltage Lockout). The mosfet gate is also protected from over voltage drive thanks to a 12V clamping protection circuit.
    Moreover, a standby feature allows very low quiescent current when activated, but keeping safe the external power element when Off.
    The IC is suitable for 12V car accessories, as well as other DC/DC step down converters.

    Key Features

    • Minimal external components count
    • Sustains 60V
    • Output high side current sensing
    • Adjustable switching frequency
    • Precise CC/CV regulation
    • Standby mode feature
    • Drives external P-channel MOSFET or PNP Bipolar transistors
    • Adjustable OVP/UVP UVLO thresholds

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS2036
      Voltage and current stepdown PWM controller
      4.2
      317.16 KB
      PDF
      DS2036

      Voltage and current stepdown PWM controller

    • Description Version Size Action
      AN1695
      TSM108 evaluation board 12V to 6V DC/DC converter
      1.3
      1.91 MB
      PDF
      AN1695

      TSM108 evaluation board 12V to 6V DC/DC converter

    • Description Version Size Action
      TN1224
      Mounting instructions for SMD (surface mounting device) packages
      2.2
      1.06 MB
      PDF
      TN1224

      Mounting instructions for SMD (surface mounting device) packages

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TSM108ID
Active
SO-14 Industrial Ecopack2
TSM108IDT
Active
SO-14 Industrial Ecopack2

TSM108ID

Package:

SO-14

Material Declaration**:

Marketing Status

Active

Package

SO-14

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TSM108IDT

Package:

SO-14

Material Declaration**:

Marketing Status

Active

Package

SO-14

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
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
TSM108ID Available at 2 distributors

Distributor availability ofTSM108ID

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1998 1 Order Now
ARROW AMERICA 527 1000 Order Now

Distributor reported inventory date: 2020-07-30

Distributor Name

DIGIKEY

Stock

1998

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

527

Min.Order

1000

Region

AMERICA Order Now

Distributor reported inventory date: 2020-07-30

Buy now
Active
EAR99 NEC Tube SO-14 -40 125 MOROCCO 0.4176 / 1k
TSM108IDT Available at 1 distributors

Distributor availability ofTSM108IDT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1751 1 Order Now

Distributor reported inventory date: 2020-07-30

Distributor Name

MOUSER

Stock

1751

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-30

Buy now
Active
EAR99 NEC Tape And Reel SO-14 -40 125 MOROCCO 0.4176 / 1k

TSM108ID

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4176 / 1k

Distributor availability ofTSM108ID

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1998 1 Order Now
ARROW AMERICA 527 1000 Order Now

Distributor reported inventory date: 2020-07-30

Distributor Name

DIGIKEY

Stock

1998

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

527

Min.Order

1000

Region

AMERICA Order Now

Distributor reported inventory date: 2020-07-30

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-14

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.4176 / 1k

Country of Origin

MOROCCO

TSM108IDT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4176 / 1k

Distributor availability ofTSM108IDT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1751 1 Order Now

Distributor reported inventory date: 2020-07-30

Distributor Name

MOUSER

Stock

1751

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-14

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.4176 / 1k

Country of Origin

MOROCCO

(*) 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