Data Sheet Rev. 0
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Overview

Features and Benefits

  • +2.7V to +5.5V Battery Input Voltage
  • +1.8V Output Voltage
  • 250mA Output Current
  • Efficiency >85% from 2mA to 250mA
  • Internal P-Channel Switch and Synchronous Rectifier
  • 0.01µA (typ) IC Shutdown Current
  • 50µA Quiescent Supply Current
  • Up to 1.2MHz (max) Switching Frequency
  • Surface-Mount Components
  • Fully Assembled and Tested

    • Product Details

    The MAX1734 evaluation kit (EV kit) is a fully assembled and tested surface-mount PC board that contains a switching-regulator circuit configured for a +1.8V output. At up to 250mA, it accepts inputs from a +2.7VDC to +5.5VDC source or a 1-cell lithium-ion (Li+) or 2- to 3-cell battery.

    The MAX1734 features an internal P-channel MOSFET switch, a synchronous rectifier, logic-controlled shutdown, and digital soft-start to limit startup current. The MAX1734 EV kit provides low quiescent current and efficiency up to 93%, providing maximum battery life. High-frequency operation up to 1.2MHz with a maximum duty cycle of 100% allows the use of tiny surface-mount components. The EV kit can also evaluate the MAX1733 after modifications.

    Applications

    • Cell Phones
    • Computers: Desktop, Workstation, Server
    • Consumer Audio
    • Digital Still Cameras
    • Global Positioning Systems (GPS)
    • Palmtop Computers
    • POS Terminals
    • Wireless Data
    • Wireless Local Area Networks (WLANs)

    Documentation & Resources

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  • Data Sheet (1)
    • Document Type