ENGLISH 简体中文 日本語 한국어  

MAX1697
60mA, SOT23 Inverting Charge Pump with Shutdown

EMI-Friendly Ultra-Small Charge Pump


  QuickView     Technical Documents     Ordering Info     More Information     All  
Description
FULL DATA SHEET (PDF, 528kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


The MAX1697 ultra-small, monolithic, CMOS chargepump voltage inverter accepts an input voltage ranging from +1.25V to +5.5V. This device features an ultra-low 12Ω output resistance, permitting loads of up to 60mA with maximum efficiency. The MAX1697 is available with operating frequencies of 12kHz, 35kHz, 125kHz, or 250kHz, allowing optimization of supply current or external component size. Its small external components and micropower shutdown mode make this device ideal for both battery-powered and board-level voltage conversion applications.

Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a negative supply from a +5V or +3.3V logic supply to power analog circuitry. All versions come in a 6-pin SOT23 package and deliver 60mA.

For applications with lower current requirements, the MAX1719/MAX1720/MAX1721 are pin-compatible SOT23 charge pumps that supply up to 25mA.

Key Features   Applications/Uses
  • 60mA Output Current
  • Low 12Ω Output Resistance
  • 150µA Supply Current (MAX1697R)
  • Requires Only Two 1µF Capacitors (MAX1697U)
  • Start-Up Current Limited
  • +1.25V to +5.5V Input Voltage Range
  • 0.1µA Logic-Controlled Shutdown
  • Slew-Rate Limited to Reduce EMI
  • 6-Pin SOT23 Package

 
  • Battery-Operated Equipment
  • GaAsFET Bias Supplies
  • Handy-Terminals, PDAs
  • Negative Supply from +5V or +3.3V Logic Supplies
  • Small LCD Panels

    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 Package Smallest Available Package (max w/pins) (mm2) RoHS Available Operating Temp. Range (°C) Price*
    MAX1697  Inverter
    Unregulated
    1.25 5.5 0.3 -VIN 0.06 250
    Shutdown
    SOT-23/6 9 Yes -40 to +85 $0.99 @ 1k
    See All Charge Pumps (50)
    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
    MAX1697: Typical Operating Circuit
    Typical Operating Circuit

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help
  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

     Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-1499; Rev 2; 2004-06-02
    This page last modified: 2007-06-04




             



       Copyright © 2008 by Maxim Integrated Products, Dallas Semiconductor    Legal Notices    Privacy Policy   

    ">