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Automotive 4V to 40V, 5 Regulated Output Power Management IC for Automotive Safety Applications


Package | PIN: RVJ | 56
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $6.94
10-24 $6.24
25-99 $5.83
100-249 $5.23
250-499 $4.88
500-749 $4.24
750-999 $3.67
1000+ $3.60


  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • DeviceTemperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBMESD Classification Level H1B
    • Device CDM ESD Classification Level C4B
  • Input Voltage Range: 4 V to 40 V, Transients up to 60 V; 80 V When Using External PMOS-FET
  • Single-Output Synchronous-Buck Controller
    • Peak Gate-Drive Current 0.6A
    • 490-kHz Fixed Switching Frequency
    • Pseudo RandomFrequency-Hopping Spread Spectrum or TriangularMode
  • Dual-Synchronous Buck Converter
    • Designed for Output Currents up to 2 A
    • Out ofPhase Switching
    • Switching Frequency: 2.45 MHz
  • Adjustable 350-mA Linear Regulator
  • Adjustable Asynchronous-Boost Converter
    • 1-A IntegratedSwitch
    • Switching Frequency: 2.45 MHz
  • Soft-Start Feature for All Regulator Outputs
  • Independent Voltage Monitoring
  • Undervoltage (UV) Detection and Overvoltage (OV) Protection
  • Short Circuit, Overcurrent, and Thermal Protection on all supply output rails
  • Serial-Peripheral Interface (SPI) for Control and Diagnostic
  • Integrated Window Watchdog (WD)
  • Reference Voltage Output
  • High-Side (HS) Driver for Use with External PMOS-FET for driving an LED
  • Input for External Temperature Sensor for Shutdown at TA < –40°C
  • Thermally Enhanced Packages With Exposed Thermal Pad
    • 56-Pin VQFN (RVJ) or 56-Pin VQFNP(RWE)

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Texas Instruments  TPS65311QRVJRQ1

The TPS65311-Q1 device is a power-management IC (PMIC), meeting the requirements ofdigital-signal-processor (DSP) controlled-automotive systems (for example, advanceddriver-assistance systems). With the integration of commonly used supply rails and features, theTPS65311-Q1 device significantly reduces board space and system costs.

The device is capable of providing stable output voltages to the application, including atypical 5-V CAN-supply, from a varying input power supply (such as an automotive car battery) from4 V to 40 V. The device includes one synchronous buck controller as a pre-regulator that offersflexible output power to the application. For post-regulation, the device includes two synchronousbuck and one asynchronous boost converter, working at a switching frequency of 2.45 MHz to allowfor a smaller inductor which requires less board space. The two buck converters also offer internalloop compensation which eliminates the need for external compensation components. Furthermore, thedevice includes a low-noise linear regulator.

To help support system safety, the device includes voltage monitoring on all supply railsand a window-watchdog to monitor the MCU and DSP. Other features include a high-side driver whichdrives a warning-lamp LED, a reference voltage which is used as ADC reference in the MCU, DSP, anda shutdown comparator which, in combination with external NTC-resistor, switches off the device attoo-low ambient temperature.