STPM802中文资料Synchronous Buck-Boost Controller数据手册ST规格书

描述 Description

The STPM802 is a synchronous 4-Switch single phase non inverting buck-boost DC/DC controller that regulates output voltage, from an input voltage above, below, or equal to the output voltage. It offers an adjustable fixed frequency operation and spread spectrum to reduce EMI emissions.

The IC provides inductor and output current monitor, OV/UV protections and Power Good flag. Fault protection is also provided to detect output short-circuit condition, during which the IC retries, latches off, or keeps running.

The IC implements a low power mode function in which control loop management changes in order to reduce power dissipation.

STPM802 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 depending on application TSR.

特性 Features

• AEC-Q100 qualification ongoing
• 4-Switch single inductor architecture
• Synchronous switching
• Input voltage range: 4.2 V to 60 V
• Spread spectrum frequency modulation
• Integrated bootstrap diodes
• Adjustable switching frequency from 177 kHz to 500 kHz
• Peak drive current > 2.8 A
• Standby mode
• Developed according to ISO26262 to be used in ASIL–D systems