Design Win

Evaluation board for L9001 SPS - Simple Power Supply - Multiple Voltage Regulator

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Product overview


EVAL-L9001 is a low cost tool designed to evaluate L9001, a smart power device designed by STMicroelectronics in advanced BCD technology.

L9001 SPS (Simple Power Supply) device is a Multiple output power regulator for automotive applications with one buck regulator, one regulator configurable as buck or linear and one more linear regulator. Its output voltages are configurable via discrete pins. On top of the regulators, this device integrates a watchdog functional block, and a diagnosis functional block (under/over voltage, output current and temperature).

Device is capable of low power operation mode with main regulators still active and reduced power consumption from battery.

EVAL-L9001 embeds a typical configuration for SPC5x microcontroller family supplying:

Buck 5 V output for peripheral supply

Buck 1.2 V output for core supply

LDO 5 V output for ADC reference supply

The expansion connector allows to monitor the different diagnostic reset signal, to enable the regulator and, if activated, to service the windows watchdog.

  • All features

    • Input voltage: 5.5 V to 18 V.
    • Voltage regulator for multiple power supply schemes:
      • First stage asynchronous switch mode regulator (VDD1) 5 V output,
      • Second stage regulator (VDD2) supplied by VDD1 with 1.2 V output (i.e. μC-core)
      • DC LDO 5 V for ADC μC supply
    • Supervision and diagnosis:
      • VS monitoring
      • Over temperature detection
      • Output supply supervision
      • Output overcurrent protection
    • Fail-safe functionality:
      • Output under or over voltage reset generation
      • Configurable Watchdog
      • Over temperature shutdown
      • Low power mode
    • Access to all relevant pins by test points
    • Input/output signal connector for Watchdog servicing and diagnosis output
    • Possibility to enable/disable Watchdog function
    • Device Package: PowerSSO-24 (exposed pad down)
    • Low cost and ready to use

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Quality and Reliability

Part Number Marketing Status RoHS Compliance Grade WEEE Compliant Material Declaration**
Not compliant No



Not compliant

Material Declaration**:

Marketing Status


RoHS Compliance Grade

Not compliant

WEEE Compliant


(**) 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.

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors