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Automotive Split-Rail Converter with Dual, Positive and Negative Outputs (750mA typ)


Package | PIN: RGE | 24
Temp: S (-40 to 105)
Carrier: Cut Tape
Qty Price
1-9 $2.69
10-24 $2.42
25-99 $2.26
100-249 $2.03
250-499 $1.89
500-749 $1.65
750-999 $1.43
1000+ $1.40


  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade2: –40°C to 105°C Ambient Operating Temperature Range
    • ElectricalCharacteristics Tested Over –40°C to 125°C Junction Temperature Range
    • Device HBM ESD Classification LevelH1C
    • Device CDM ESD Classification Level C4B
  • Dual Adjustable Output Voltages up to 15 V and down to –15 V
  • 2–A Typical Switch-Current Limit for Boost and Inverter Main Switches
  • High Conversion Efficiency
    • Up to 91% at Positive Output Rail
    • Up to 85% at Negative Output Rail
    • Power-Save Mode at LowLoad
  • Independent Enable Inputs for Power-Up and Power-Down Sequencing
  • Control Output for External PFET to Support Complete Supply Disconnect When Shut Down
  • 2.7-V to 5.5-V Input-Voltage Range
  • Minimum 1.25-MHz Fixed-Frequency PWM Operation
  • Thermal Shutdown
  • Overvoltage Protection on Both Outputs
  • 0.2-µA Typical Shutdown Current
  • Small 4-mm × 4-mm QFN-24 Package (RGE)

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Texas Instruments  TPS65131TRGERQ1

The TPS65131-Q1 device is dual-outputdc-dc converter generating a positive output voltage up to 15 V and a negative output voltage downto –15 V with output currents of typically 200 mA, depending on input-voltage to output-voltageratio. With a total efficiency up to 85%, the device is ideal for portable battery-poweredequipment. The input-voltage range of 2.7 V to 5.5 V allows, for example, 3.3-V and 5-V rails topower the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad.Requiring few and small external components, the overall solution size can be small.

The converter operates with a fixed-frequency PWM control topology and, with power-savemode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overalldevice quiescent current is only 500 µA. In shutdown, the device draws typically 0.2 µA.Independent enable pins allow power-up and power-down sequencing for both outputs. The device hasan internal current limit, overvoltage protection, and a thermal shutdown for highest reliabilityunder fault conditions.

The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junctiontemperature. This, combined with lowest shutdown currents, small solution size, package withthermal pad, plus good efficiency and protection features, targets automotive and industrialapplications.