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Voltage regulator with dc-dc plus switchable linear regulators controlled by I2C bus
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L5962 is a very versatile device exploiting BCD technology characteristics to provide a complete set of regulated voltages covering all the needs of a car-radio set.

In standby condition the device guarantees extremely low quiescent current (90 μA max -40 ˚C < T < 85 ˚C) and minimum operating voltage (4.5 V using an external Schottky diode for the back-up function).

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Errata Sheet
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Key Features

  • Step-down synchronous switching voltage regulator
  • Internal high-side/ Low-side NDMOS
  • 1.2 < Vout < 8 V selectable through external resistors
  • 1.2/2.5 A load current selected through dedicated pin
  • 185 kHz free-run frequency
  • SYNC function (220 < fsw < 400 kHz)
  • Linear regulators
  • 3.3/5 V @ 150 mA standby regulator selected through dedicated pin (VSTBYSEL)
  • 5/8.5 V @ 350 mA switched linear regulator enabled and selected through I2C bus (VLR1)
  • 3.3/10 V @ 1 A switched linear regulator enabled and selected through I2C bus (VLR2)
  • 2 High side drivers (0.5 V max drop @ 0.5 A) enabled through I2C bus and equipped with protection circuit against:
  • short to ground and battery
  • loss of ground and battery
  • unsupplied short to battery
  • Reset function with configurable delay (RST, RSTDLY)
  • I2C bus
  • Enable pin to drive switching regulator and I2C bus logic
  • Under/over voltage battery detector (VBATVW)
  • Under voltage threshold adjustable through dedicated pin (LVWIN)
  • Load dump protection
  • Independent thermal protection on all regulators

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS6613: Multiple linear/switching voltage regulator for car-radio
3.0 250 KB

Application Notes

Description Version Size
AN2817: Guidelines for application design using L5962
2.0 1,537 KB

Publications and Collaterals


Description Version Size
Automotive infotainment power management
1.0 281 KB

Selection Guides

Description Version Size
Power amplifiers and voltage regulators
750 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
L5962ActivePowerSO 36TubeYes-4.04No availability reported, please contact our Sales officeEcopack2PDF
L5962TRActivePowerSO 36Tape And ReelYes-4.04No availability reported, please contact our Sales officeEcopack2PDF

(*) 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.
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