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MAX1595
Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump


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Description
FULL DATA SHEET (PDF, 356kB)
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The MAX1595 charge-pump regulator generates either 3.3V or 5V from a 1.8V to 5.5V input. The unique control architecture allows the regulator to step up or step down the input voltage to maintain output regulation. The 1MHz switching frequency, combined with a unique control scheme, allows the use of a ceramic capacitor as small as 1µF for 125mA of output current. The complete regulator requires three external capacitors—no inductor is needed. The MAX1595 is specifically designed to serve as a high-power, high- efficiency auxiliary supply in applications that demand a compact design. The MAX1595 is offered in space-saving 8-pin µMAX and high-power 12-pin thin QFN packages.

Key Features   Applications/Uses
  • Ultra-Small: Requires Only Three Ceramic Capacitors
  • No Inductors Required
  • Up to 125mA Output Current
  • Regulated ±3% Output Voltage
  • 1MHz Switching Frequency
  • 1.8V to 5.5V Input Voltage
  • 220µA Quiescent Current
  • 0.1µA Shutdown Current
  • Load Disconnect in Shutdown

 
  • 3.3V to 5V Local Conversion Applications
  • 3V to 5V GSM SIMM Cards
  • Backup Battery Boost Converters
  • Battery-Powered Applications
  • Flash Memory Supplies
  • Miniature Equipment
  • PCMCIA Cards
  • White LED Power

    Key Specifications:   Charge Pumps
    Part Number Topology VIN (min) (V) VIN (max) (V) Operating Current, ICC (max) (mA) Unadjusted VOUT (V) IOUT (typ) (A) Operating Frequency (kHz) Features Industry Qualified Package RoHS Available Operating Temp. Range (°C) Price**
    MAX1595  Regulated 1.8 5.5 0.22 3.3
    5
    0.125 1000
    Shutdown
    Automotive - AECQ100
    Automotive - General
    QFN/12
    THIN QFN/12
    uMAX/8
    Yes -40 to +85
    0 to +70
    $1.43 @ 1k
    See All Charge Pumps (51)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX1595: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-2107; Rev 1; 2002-11-04
    This page last modified: 2007-06-28



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