12 V, 2.5 A PWM Step-Up DC/DC Converter

    Key Features

    • Greater than 90% efficiency
    • Adjustable output voltage up to 12 V
    • Internal 14 V power MOSFET
    • Selectable 700 kHz / 1.3 MHz frequency
    • Integrated over-voltage protection (OVP)
    • Programmable soft-start function
    • Thermal shutdown
    • Cycle-by-cycle over-current protection

    Qorvo's ACT6391 is a high-performance, fixed-frequency, current-mode PWM step-up DC/DC converters that incorporate internal power MOSFETs. It includes an integrated 0.15 Ohm power MOSFET that supports currents of up to 2.5 A.

    ACT6391 utilizes simple external loop compensation and a pin-selectable fixed-frequency of either 700 kHz or 1.3 MHz, allowing optimization between component size, cost, and AC performance across a wide range of applications. Additional functions include an externally programmable soft-start function for easy inrush current control, internal over-voltage protection (OVP), cycle-by-cycle current limit protection and thermal shutdown.

    ACT6391 is available in the small 8-pin MSOP-8 package.

    Typical Applications

      • TFT LCD Monitors
      • Battery-Powered Equipment
      • Set-Top Boxes
      • DSL and Cable Modems and Routers
    Topology Step-Up
    Max Input Voltage(V) 5.5
    Max Output Voltage(V) 12
    Max Input Current(A) 2.5
    Frequency(kHz) 700 to 1,300
    Package Type MSOP-8
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN EAR99