TPS55160QPWPTQ1

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1. Describe

The TPS55160QPWPTQ1 family of devices is a high voltage synchronous buck-boost DC-DC converter. The device provides a regulated power output from various input sources such as a car battery. Buck-boost overlap control ensures automatic transition between buck and boost modes with optimum efficiency. The TPS55165-Q1 output voltage can be set to a fixed level of 5V or 12V. The TPS55160QPWPTQ1 and TPS55162-Q1 devices have a configurable output voltage range of 5.7V to 9V, set by an external resistor divider. The output current can be as high as 1 A for normal car battery voltages, and remains at 0.4 A for lower input voltages such as common battery cranking curves. Buck-boost converters are based on fixed frequency, pulse width modulation (PWM) control circuits that use synchronous rectification for maximum efficiency. The switching frequency is set to 2 MHz (typ), allowing the use of small inductors that take up less board space.

2. Feature

    1. Compliant with automotive application requirements

    2. AEC-Q100 qualified with the following results:

        – Device Temperature Grade 1: –40°C to +125°C ambient operating temperature

        – Equipment HBM ESD classification level 2

        – Equipment CDM ESD classification level C4B

    3. Functional safety capabilities

        – Documentation available to aid in functional safety system design

    4. For VOUT = 5V, the input voltage range is 2V to 36V

    5. 5V or 12V fixed output voltage (TPS55165-Q1)

    6. Adjustable output voltage option from 5.7 V to 9 V (TPS55160-Q1 and TPS55162-Q1)

    7. Up to 85% efficiency

    8. 1A output current for VOUT = 5V and VIN ≥ 5.3V

    9. 0.8A output current at VOUT = 5 V and VIN ≥ 3.8 V

  10. 0.4 A output current at VOUT = 5 V and VIN ≥ 2.3 V

  11. Automatic transition between buck and boost modes

  12. Low-power modes improve efficiency at light loads (TPS55160-Q1/TPS55165-Q1)

  13. Less than 15 μA device quiescent current in low power mode (TPS55160-Q1/TPS55165-Q1)

  14. Device shutdown current is less than 3 μA

  15. Forced fixed frequency operation of 2 MHz

  16. Optional spread spectrum (TPS55160-Q1 and TPS55165-Q1)

  17. Wake-up via IGN with power latch

  18. Smart Power Good output with configurable delay time

  19. Over temperature protection and output over voltage protection

  20. Available in an easy-to-use 20-pin HTSSOP PowerPAD™ package

3. Application

    1. Start-stop sensitive automotive power applications

        – Infotainment and cluster

        – Body electronics and gateway modules

    2. Industrial applications where input voltage fluctuates

        – Solar battery charging

        – Lithium-ion battery pack

4. Pin configuration

5. Application Information

The TPS55160QPWPTQ1 family of devices is a high-voltage synchronous buck-boost DC-DC converter that integrates all four power MOSFETs. Each device in this device family can produce a well-regulated output voltage from a widely varying input voltage source, such as a car battery. If the input voltage is higher than the output voltage, the TPS55160QPWPTQ1 device will operate in buck mode. If the input voltage is lower than the output voltage, the device operates in boost mode. If the input voltage is equal to or close to the output voltage, then The device operates between buck and boost modes. Buck-boost overlap control ensures automatic and smooth transitions between buck and boost (that's okay. Boost and Buck modes are mentioned on the first page of the spec) modes with optimum efficiency. The output voltage of the TPS55165-Q1 device can be set to a fixed level of 5V or 12V. The output voltage of the TPS55160QPWPTQ1 and TPS55162-Q1 devices can be programmed from 5.7V to 9V.