TPS65301-Q1 Datasheet | Texas Instruments

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 Range - Device HBM ESD Classification Level H2 - Device CDM ESD Classification Level C4B - Input VIN Range 5.6 V to 40 V, With Transients up to 45 V - 5.45-V Switch-Mode Regulator With Integrated High-Side Switch - Remended Switch-Mode Frequency Range 2 MHz to 3 MHz - Overcurrent Protection and 1.2-A Peak Switch Current - One Linear Regulator 5 V ±2% - Two Linear Regulator Controllers With 3.3-V and 1.2 V ±2% - Status Indicator Output of IGN_EN Input - Soft Start on IGN_EN and EN - External Clock Input for Synchronization - Programmable Power-On-Reset Delay, Reset- Function Filter Timer for Fast Negative Transients - Voltage Supervisor for the Following Supplies - VREG, 3.3 V, 1.2 V - Thermally Enhanced 24-Pin HTSSOP or 24-Pin VQFN Package - Protected 5-V Sensor Supply Output, Which Tracks 3.3-V Supply 2 Applications - Power Supply for TMS570 Microcontrollers - Power Supply for C28XXX DSP - General-Purpose Power Supply for Automotive Applications 3 Description The TPS65301-Q1 power supply is a bination of a single switch-mode buck power supply and three linear regulators. This is a monolithic high-voltage switching regulator with an integrated 1.2-A peak current switch, 45-V power MOSFET, one low-voltage linear regulator, two voltage-regulator controllers and a protected sensor supply. The device has a voltage supervisor which monitors the output of the switch-mode power supply, the 3.3V linear regulator, and the 1.2-V linear regulator. An external timing capacitor is used to set the power-on delay and the release of the reset output n RST. This reset output is also used to indicate if the switchmode supply, the 3.3-V linear regulator supply, or the 1.2-V linear regulator supply is outside the set limits. The protected sensor supply 5VS tracks the 3.3-V linear regulator within the specified...