SPSA068中文资料PMIC with buck and precise voltage reference for MCU applications数据手册ST规格书

描述 Description

The 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, monitoring and external window watchdog.

The device offers a set of features to support applications that need to fulfill functional safety requirements as defined by the automotive safety integrity level.

特性 Features

• AEC-Q100 qualification ongoing
• Pre SMPS BUCK regulator, adjustable via NVM to 5.0 V, 3.3 V, 1.2 V @ 0.5 A and 1.0 A load current, 0.4 / 2.4 MHz. Via external resistive divider, it can regulate a voltage between 3.3 V and 1.2 V
• Precise voltage reference (1%), adjustable via NVM to 5.0 V, 3.3 V, 1.2 V @ 20 mA load current
• Standby mode Iq
• Spread frequency spectrum
• Reset output
• Adjustable window watchdog
• Vref tracking of Vbuck in power-up phase
• Short-circuit protected outputs
• Fault detection pin to microcontroller
• Low external components number
• Thermal warning and thermal shutdown