Product overview
Description
SPSA068 is a BUCK voltage regulator with a precise voltage reference for MCU applications. All the regulators have internal power switches.
The LPM allows the operation under light-load conditions reducing the quiescent current down to 50 μA typ.
An internal programmable memory allows selecting the main device parameters like output voltages and switching frequencies.
An SPI interface can be used for diagnostics, programming, monitor and external window watchdog.
The device offers a set of features to support applications that need to fulfill functional safety requirements as defined by automotive Safety Integrity Level.
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All features
- AEC-Q100 qualified
- Pre SMPS BUCK regulator, adjustable via NVM to 5.0 V, 3.3 V, 1.2 V at 0.5 A and 1.0 A load current, 0.4/2.4 MHz. Via external resistive divider, it can regulate a voltage between 5 V and 1.2 V.
- Precise voltage reference (1%), adjustable via NVM to 5.0 V, 3.3V, 1.2 V at 20 mA load current
- Standby mode Iq < 5 μA
- Low quiescent current, 50 μA, in low power active mode
- SPI interface with CRC
- Programmable soft start
- Voltage supervisors
- Spread frequency spectrum
- Reset output
- Adjustable window watchdog supervisors
- VREF, tracking of VBUCK in power-up phase
- Short circuit protected outputs and Fault detection pin to microcontroller
- Low external components number
- Thermal warning and thermal shutdown
EDA Symbols, Footprints and 3D Models
STMicroelectronics - SPSA068
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| SPSA068-TR | Active | QFN-32L WF | Automotive Safety | 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 | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| SPSA068-TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
SPSA068-TR Active
(*) 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