STMicroelectronics STEVAL-SPSA068→STEVAL-SPSA068
Evaluation board based on SPSA068 automotive PMIC with BUCK and precise voltage reference
The STEVAL-SPSA068 is a tool designed to evaluate SPSA068, a BUCK voltage regulator with a precise voltage reference for automotive MCU applications. All the regulators have internal power switches.
An internal programmable memory allows selecting the main device parameters. STEVAL-SPSA068 has been programmed in the following condition: VOUT = 1.2 V, switching frequency = 400 kHz, watchdog disabled, VREF enabled, OV/UV = +/-5%.
The SPSA068 is already programmed, so no external microcontroller is necessary to control the STEVAL-SPSA068 application. It is possible to set a VOUT different than 1.2 V by using an external resistor divider.
Key features
- 4.2 V to 19 V input operating voltage
- 1.2 V output voltage without external resistor
- 1.2 V to 5 V output voltage using external resistor
- 400 kHz switching frequency
- 1 A load current
- Watchdog disabled
- +/-5% overvoltage/undervoltage thresholds
- Evaluation board design with optimized bill of materials
- VREF, tracking of VBUCK in power-up phase enabled
- Short circuit protected outputs and fault detection pin
- Thermal warning and thermal shutdown
Applications
- Telematics and Connectivity control unit
- Rear view camera
- Driver monitoring system (DMS)
- On Board Charger (OBC)
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