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Design TPS653853-Q1
SLVSDC4A – DECEMBER 2016 – REVISED NOVEMBER 2017 TPS653853-Q1 Multirail Power Supply for Microcontrollers in Safety-Relevant Applications
1 Device Overview
1.1 Features 1 Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to +125°C
Ambient Operating Temperature
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B Input Voltage Range
– 7 to 36 V for Initial Battery Power Up
– 3.8-to 36-V Full Functionality After Initial Battery
Power Up
– Minimum 2.3 V During Operation After Wake-up Supply Rails
– 6-V Synchronous Buck-Boost Preregulator With
Internal FETs
– 5-V, 284-mA (CAN) LDO With Internal FET
– 3.3-V or 5-V, 350-mA (MCU IO) LDO With
Internal FET …
