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Micro - Mini USB Interface with Integrated 28V Linear Charger


Package | PIN: YFQ | 25
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.91
10-24 $1.71
25-99 $1.59
100-249 $1.38
250-499 $1.27
500-749 $1.07
750-999 $0.88
1000+ $0.81


  • USB Multiplexing Switches
    • High-Speed USB on USB and UART Inputs
    • Negative Voltage Rail on Audio Inputs
    • Internal LDO for ID Detection and MIC Bias
    • Compatible with USB Charging Specification Rev. 1.1
    • DSS Input for Default Switch Connection
    • Low-Power MIC Standby Mode
  • Linear Charge with Single Input
    • 28 OVP on VBUS Input
    • High-Current Mode for Production Test
    • Thermal Regulation
  • Over-Voltage Protected LDO for USB Transceivers and PMU Wakeup
  • UVLO (Undervoltage Lock Out)
  • Interrupt Request to Reduce SW Polling
    • USB / ID Detection
    • SEND / END Button Detection
    • Mic Removal
    • OVLO / UVLO on VBUS
    • Charger Status
  • Thermal Shutdown Protection
  • I2C-compatible Serial Interface
  • 25-Bump 0.4 mm Pitch Thin DSBGA Package

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Texas Instruments  LP8727TME-B/NOPB

The LP8727 is designed to provide automatic multiplexing switches between Micro/Mini USB connector and USB, UART and Audio paths in cellular phone applications. It also contains a single-input Li-Ion battery charger and an overvoltage-protected LDO. Programming is handled via an I2C-compatible Serial Interface allowing control of charger, multiplexing switches, and reading status information of the device.

The multiplexing switches on USB and UART support high-speed USB, and Audio inputs can be driven to negative voltage rail. The LP8727 is compatible with USB charging specifications rev 1.1 from USB IF.

The Li-Ion charger requires few external components and integrates the power FET. Charging is thermally regulated to obtain the most efficient charging rate for a given ambient temperature. It has Overvoltage Protection (OVP) circuit at the charger input protects the PMU from input voltages up to +28V, eliminating the need for any external protection circuitry.

An overvoltage-protected LDO which can supply up to 50 mA is designed for powering up a low-voltage USB transceiver or waking up a PMU (Power Management Unit) when an external power source (either USB VBUS or wall adapter) is connected to the USB connector.

The LP8727 PMU is available in 25-bump 0.4 mm pitch thin DSBGA package (2.015 mm x 2.015 mm).