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  • L5963 is a dual step-down switching regulator with internal power switches, high side driver and a low drop-out linear regulator that can operate as standby regulator or normal LDO.

    All the regulators can be connected directly to the vehicle battery. In addition to an adjustable voltage detector, voltage supervisors are available.
    The two DC-DC converters can work in free-run condition or synchronize themselves to an external clock. DC/DCs' PWM outputs have a 180° phase shift.
    The high operating frequency allowed by the synchronization input helps to reduce AM and FM interferences and grants the use of small and low cost inductors and capacitors.
    This IC finds application in the automotive segment, where load dump protection and wide input voltage range are mandatory.
    A slug-up package option is available for applications which require heatsink use.
    In standby condition the device guarantees extremely low quiescent current (25 μA typical @ -40 °C < T < 85 °C)

    Key Features

    • AEC-Q100 qualified
    • Two step-down synchronous switching voltage regulators with internal power switches:
      • Wide input voltage range (from 3.5 V to 26 V)
      • Internal high-side/ low-side NDMOS
      • 1 V minimum output
      • 3.0 A load current
      • 250 kHz free-run frequency
      • 250 kHz < f < 2 MHz synchronization range
      • Integrated soft-start
      • Independent hardware enable pins
      • Independent power supply
      • 180° PWM output phase shift
      • Programmable switching frequency divider by 1, 2, 4 or 8 between the two DC/DC regulators
      • Power good function
    • One standby / linear regulator
      • Output voltage programmable with external resistor divider
      • 250 mA maximum current capability
      • Backup function
      • Power good function
    • One high side driver
      • 0.5 V max drop @ 0.5 A
      • Protected against short to ground and battery, loss of ground and battery, unsupplied short to battery
    • Programmable under voltage battery detector
      • Under voltage threshold adjustable through dedicated pin (VDIN)
    • Load dump protection
    • Independent thermal protection on all regulators
    • Independent current limit on all regulators
    • Extremely low quiescent current in standby conditions
    • Power good / adjustable voltage detector outputs to realize customized power up/down sequences

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      EVAL-L5963

      Active

      L5963 Evaluation board

      Automotive IC Eval Boards ST

      EVAL-L5963Q

      Active

      L5963Q evaluation board

      Automotive IC Eval Boards ST
      EVAL-L5963

      Description:

      L5963 Evaluation board
      EVAL-L5963Q

      Description:

      L5963Q evaluation board

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L5963

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L5963DN-EHT
Active
PowerSSO 36 Automotive Ecopack2
L5963DN-EHX
Active
PowerSSO 36 Automotive Ecopack2
L5963Q-V0T
Active
VFQFPN 48 7x7x1.0 Automotive Ecopack2
L5963Q-V0Y
Active
VFQFPN 48 7x7x1.0 Automotive Ecopack2
L5963U-KBT
Active
PowerSSO 36 Automotive Ecopack2
L5963U-KBX
Active
PowerSSO 36 Automotive Ecopack2

L5963DN-EHT

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L5963DN-EHX

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L5963Q-V0T

Package:

VFQFPN 48 7x7x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 48 7x7x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L5963Q-V0Y

Package:

VFQFPN 48 7x7x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 48 7x7x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L5963U-KBT

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L5963U-KBX

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

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.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output

V This option is required and must be a number.
A This option is required and must be a number.

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
L5963DN-EHX No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube PowerSSO 36 -40 105 MALAYSIA 2.4 / 1k
L5963U-KBX No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube PowerSSO 36 -40 105 MALAYSIA 2.4 / 1k
L5963Q-V0T No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel VFQFPN 48 7x7x1.0 -40 105 THAILAND 2.6 / 1k
L5963Q-V0Y Available at 2 distributors

Distributor availability ofL5963Q-V0Y

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3 1 Order Now
MOUSER WORLDWIDE 1540 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

DIGIKEY

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1540

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-27

Buy Direct
Active
EAR99 NEC Tray VFQFPN 48 7x7x1.0 -40 105 THAILAND 2.6 / 1k
L5963DN-EHT Available at 1 distributors

Distributor availability ofL5963DN-EHT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 909 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

MOUSER

Stock

909

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-27

Buy Direct
Active
EAR99 NEC Tape And Reel PowerSSO 36 -40 105 MALAYSIA 2.4 / 1k
L5963U-KBT No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel PowerSSO 36 -40 105 MALAYSIA 2.4 / 1k

L5963DN-EHX

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.4 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

PowerSSO 36

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

2.4 / 1k

Country of Origin

MALAYSIA

L5963U-KBX

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.4 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

PowerSSO 36

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

2.4 / 1k

Country of Origin

MALAYSIA

L5963Q-V0T

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.6 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFQFPN 48 7x7x1.0

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

2.6 / 1k

Country of Origin

THAILAND

L5963Q-V0Y

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.6 / 1k

Distributor availability ofL5963Q-V0Y

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3 1 Order Now
MOUSER WORLDWIDE 1540 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

DIGIKEY

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1540

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-27

ECCN (EU)

NEC

Packing Type

Tray

Package

VFQFPN 48 7x7x1.0

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

2.6 / 1k

Country of Origin

THAILAND

L5963DN-EHT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.4 / 1k

Distributor availability ofL5963DN-EHT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 909 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

MOUSER

Stock

909

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSSO 36

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

2.4 / 1k

Country of Origin

MALAYSIA

L5963U-KBT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.4 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSSO 36

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

2.4 / 1k

Country of Origin

MALAYSIA

(*) 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