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MAX1896
1.4MHz SOT23 Current-Mode Step-Up DC-DC Converter


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Description
FULL DATA SHEET (PDF, 760kB)
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The MAX1896 step-up DC-DC converter incorporates high-performance current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry and an internal 0.7Ω N-channel MOSFET to provide a highly efficient regulator with fast response.

High switching frequency (1.4MHz) allows fast loop response and easy filtering with small components. The MAX1896 can produce an output voltage as high as 13V from an input as low as 2.6V. Soft-start is programmable with an external capacitor, which sets the input current ramp rate. In shutdown mode, current consumption is reduced to 0.01µA.

The MAX1896 is available in a space-saving 6-pin SOT23 package. The ultra-small package and high switching frequency allow cost and space-efficient implementations.

Key Features   Applications/Uses
  • >90% Efficiency
  • Adjustable Output Up to 13V
  • Guaranteed 12V/120mA Output from 5V Input
  • 2.6V to 5.5V Input Range
  • LT1613 Pin Compatible
  • 0.01µA Shutdown Current
  • Programmable Soft-Start
  • Space-Saving 6-Pin SOT23 Package

     
  • Handheld Devices
  • LCD Displays
  • Notebook Computers
  • PCMCIA Cards
  • Portable Applications

    Key Specifications:   Switch-Mode DC-DC Power Supplies
    Part Number Topology VIN (min) (V) VIN (max) (V) Number of DC-DC Outputs Digital/VID Programmed Output Max. Adjustable VOUT (V) IOUT (A) Operating Current, ICC (max) (mA) Fixed Freq/PWM Operation Operating Freq. (kHz) Internal Power Switch(es) Synchronous Rectifier Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX1896  Step-Up 2.6 5.5 1 No 13 0.5 0.4 Yes 1400 Yes No SOT-23/6 9 $1.30 @ 1k
    See All Switch-Mode DC-DC Power Supplies (418)
    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
    MAX1896: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-2221; Rev 1; 2004-03-30
    This page last modified: 2007-07-02




             


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