TPS65301-Q1

ACTIVE

Automotive 5.6V to 40V, 1.2A Buck Converter with 3 LDOs and Protected Sensor Supply

Product details

Regulated outputs (#) 4 Vin (min) (V) 5.6 Vin (max) (V) 40 Vout (min) (V) 1.2 Vout (max) (V) 5.7 Iout (max) (A) 1.2 Features Enable, Overcurrent protection, Thermal shutdown Step-up DC/DC converter 0 Step-down DC/DC converter 1 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 3 Iq (typ) (mA) 5.57 Rating Automotive Switching frequency (max) (kHz) 3000 Operating temperature range (°C) -40 to 125 Processor supplier Texas Instruments Processor name C2000, Hercules TMS570 Shutdown current (ISD) (typ) (µA) 2.2 Product type Microcontrollers
Regulated outputs (#) 4 Vin (min) (V) 5.6 Vin (max) (V) 40 Vout (min) (V) 1.2 Vout (max) (V) 5.7 Iout (max) (A) 1.2 Features Enable, Overcurrent protection, Thermal shutdown Step-up DC/DC converter 0 Step-down DC/DC converter 1 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 3 Iq (typ) (mA) 5.57 Rating Automotive Switching frequency (max) (kHz) 3000 Operating temperature range (°C) -40 to 125 Processor supplier Texas Instruments Processor name C2000, Hercules TMS570 Shutdown current (ISD) (typ) (µA) 2.2 Product type Microcontrollers
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4
  • 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
    • Recommended 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

All trademarks are the property of their respective owners.

  • 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
    • Recommended 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

All trademarks are the property of their respective owners.

The TPS65301-Q1 power supply is a combination 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 3.3-V 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 nRST. This reset output is also used to indicate if the switch-mode 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 limits.

The TPS65301-Q1 device has a switching frequency range from 2 MHz to 3 MHz, allowing the use of low-profile inductors and low-value input and output ceramic capacitors. External loop compensation gives the user the flexibility to optimize the converter response for the appropriate operating conditions.

This device has built-in protection features such as soft start on IGN_EN ON or enables cycle, pulse-by-pulse current limit, thermal sensing, and shutdown due to excessive power dissipation.

For all available packages, see the orderable addendum at the end of the data sheet.

The TPS65301-Q1 power supply is a combination 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 3.3-V 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 nRST. This reset output is also used to indicate if the switch-mode 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 limits.

The TPS65301-Q1 device has a switching frequency range from 2 MHz to 3 MHz, allowing the use of low-profile inductors and low-value input and output ceramic capacitors. External loop compensation gives the user the flexibility to optimize the converter response for the appropriate operating conditions.

This device has built-in protection features such as soft start on IGN_EN ON or enables cycle, pulse-by-pulse current limit, thermal sensing, and shutdown due to excessive power dissipation.

For all available packages, see the orderable addendum at the end of the data sheet.

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Technical documentation

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* Data sheet TPS65301-Q1 3-MHz Step-Down Regulator and Triple Linear Regulators and Protected Sensor Supply datasheet (Rev. C) PDF | HTML 25 Apr 2016
EVM User's guide TPS65301EVM User's Guide 05 Nov 2013

Design & development

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Simulation model

TPS65301-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMA90A.ZIP (114 KB) - PSpice Model
Package Pins Download
HTSSOP (PWP) 24 View options

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