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Features

? AEC-Q100 qualified

? Pre SMPS BUCK regulator, adjustable via OTP to 1.0 V, 1.1 V, 1.2 V, 1.35 V,

1.5 V, 3.3 V, 3.6 V, 5.0 V at 1.35/2.6 A min peak current limit, 0.4/2.4 MHz

? Post SMPS BOOST regulator, adjustable via OTP to 5.0 V at 0.3 A max load

current, 7.0 V at 0.2 A max load current, 2.4 MHz

? Post Linear regulator LDO, adjustable via OTP to 1.2 V, 1.25 V, 1.3 V, 1.8 V,

2.5 V, 2.8 V, 3.3 V, 5.0 V at 300/600 mA max load current

? Precise Voltage reference, adjustable via OTP to 1.8 V, 2.5 V, 3.3 V,

4.1 V at 20 mA max load current

? SPI interface with CRC

? Programmable slew rate/soft start

? Voltage supervisors

? Spread frequency spectrum

? Reset and reset sensitivity list

? Adjustable window watchdog supervisors

? Programmed power up phase via OTP

? Short circuit protected outputs and Fault detection pin to Microcontroller

? Low external components number

? Thermal shutdown junction temperature 175 °C

Description

STPM066S is a multiple voltage regulator composed by one battery compatible

BUCK pre-regulator, one BOOST, one LDO and a precise voltage reference

regulator. All the regulators have internal power switches.

OTP (One Time Programmable) cells are used for the main device parameters

programming (output voltages and currents, switching frequencies) and to configure

the power up sequence.

An SPI interface can be used to enable or disable the single voltage regulators, for

diagnostic information and to program internal blocks parameters (monitor and Power

Good thresholds, slew rate, etc.).

The device offers a set of features to support applications that need to fulfill functional

safety requirements as defined by Automotive Safety Integrity Level (ASIL) A-B-C-D.