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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps61288″>View Datasheet

Texas Instruments TPS61288 Synchronous Boost Converter

Texas Instruments TPS61288 Synchronous Boost Converter is a high-power density, fully-integrated synchronous boost converter. It comes with a 6.5mΩ power switch and an 8.5mΩ rectifier switch to provide high efficiency and small size solution in portable systems. The TPS61288 has a wide input voltage range from 2V (2.4V rising) to 18V to support applications with single-cell or two-cell Lithium batteries. The device has a 15A switch current capability and can provide an output voltage of up to 18V.

The Texas Instruments TPS61288 employs peak current control topology with SOO modulation to regulate the output voltage. The device operates in the pulse width modulation (PWM) mode in moderate to heavy load conditions. It automatically runs in the pulse frequency modulation (PFM) mode in light load and low duty cycle conditions. SOO modulation realizes accurate regulation over a wide load/VIN range while maintaining high efficiency and low output ripple. The switching frequency in the PWM mode is 500kHz. The TPS61288 provides 19V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.

Features

  • Wide input voltage and output voltage range
    • 2.0V to 18V VIN
    • 2.4V minimum input voltage for start-up
    • 4.5V to 18V VOUT
  • High efficiency and power capability
    • 15A peak switch current limit
    • Two 6.5mΩ (LS)/8.5mΩ (HS) MOSFETs
    • 500kHz switching frequency
    • Up to 94.7% efficiency at VIN = 3.6V, VOUT = 13V, and IOUT = 2A
    • Up to 96.9% efficiency at VIN = 7.2V, VOUT = 16V, and IOUT = 2.5A
  • Extend the system operating time
    • Typical 110µA quiescent current into VOUT pin
    • Maximum 2.1µA current into VIN pin during the shutdown
    • Smooth on-time/off-time (SOO) Modulation at light load and low duty cycle and no DC offset between PFM and PWM
  • Rich protection
    • Output overvoltage protection at 19V
    • Cycle-by-cycle overcurrent protection
    • Thermal shutdown
  • 2.5mm × 3.0mm QFN package

Applications

  • Bluetooth™ speaker
  • Source driver of LCD display
  • USB Type-C power delivery

Functional Block Diagram

Block Diagram - Texas Instruments TPS61288 Synchronous Boost Converter

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Texas Instruments TPS61288 Synchronous Boost Converter