Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transcelver

The 33394 is a multi–output power supply integrated circuit with high speed CAN transceiver. The IC incorporates a switching pre–regulator operating over a wide input voltage range from +4.0V to +26.5V (with transients up to 45V).

Features:
• Wide operating input voltage range: +4.0V to +26.5V (+45V transient).
• Provides all regulated voltages for MPC5XX MCUs and other ECU’s logic and analog functions.
• Accurate power up/down sequencing.
• Provides necessary MCU support monitoring and fail–safe support.
• Provides three 5.0 V buffer supplies for internal & external (short–circuit protected) sensors.
• Includes step–down/step–up switching regulator to provide supply voltages during different battery conditions.
• Interfaces Directly to Standard 5.0V I/O for CMOS Microprocessors by means of Serial Peripheral Interface.