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MAX1735
200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23

Ultra-Small, 200mA Negative Output LDO in SOT23


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 308kB)
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The MAX1735 negative-output, low-dropout linear regulator operates from a -2.5V to -6.5V input and delivers a guaranteed 200mA with a low 80mV dropout. The high-accuracy (±1%) output voltage is preset or can be adjusted from -1.25V to -5.5V with an external resistive voltage-divider.

An internal N-channel MOSFET allows for a low 85µA quiescent current virtually independent of the load, making this device ideal for battery-powered portable equipment, such as PDAs, mobile phones, cordless phones, and wireless data modems.

The device is available in several preset output voltage versions: -5.0V, -3.0V, and -2.5V. All versions offer a 1nA low-power shutdown mode, short-circuit protection, and thermal overload protection. The device is offered in a tiny 5-pin SOT23 package.

Key Features   Applications/Uses
  • Guaranteed 200mA Output Current
  • Low 80mV Dropout Voltage at 200mA
  • Low 85µA Quiescent Supply Current
  • Low 1nA Current Shutdown Mode
  • Stable with 1µF COUT
  • PSRR > 60dB at 100Hz
  • Thermal Overload Protection
  • Short-Circuit Protection
  • -5.0V, -3.0V, or -2.5V Output Voltage or Adjustable (-1.25V to -5.5V)
  • Tiny SOT23-5 Package

 
  • Access Products
  • Cell Phones
  • Cordless Phones
  • Digital Cameras and Camcorders
  • Glucose Meters
  • Handhelds (GPS, POS Terminal)
  • HDD and RAID
  • PC Add-In Cards
  • Power Supplies

    Key Specifications:  Linear Regulators
    Part Number Regulators VIN
    (V)
    VIN
    (V)
    Preset VOUT
    (V)
    Adj. VOUT
    (V)
    Adj. VOUT
    (V)
    VDROPOUT @Rated ILOAD
    (V)
    Rated ILOAD
    (mA)
    ICC
    (µA)
    Low Batt./ Pwr. Fail Out Watchdog Reverse Batt. Protect. Package/Pins Smallest Available Pckg.
    (mm2)
    Oper. Temp.
    (°C)
    Price
    min max min max typ max max w/pins See Notes
    MAX1735  1 -2.5 -6.5
    -5.0
    -3.0
    -2.5
    -1.25 -5.5 0.08 200 180 No No No
    SOT/5
    9 -40 to +85 $1.10 @1k
    See All Linear Regulators (153)

    Diagram
    MAX1735: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-1783; Rev 1; 2003-11-01
    This page last modified: 2009-11-06


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