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MAX1615, MAX1616
High-Voltage, Low-Power Linear Regulators for Notebook Computers

High-Input-Voltage, Low-Cost, Low-Power, Low-Dropout Linear Regulators for Notebooks in SOT23-5


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Description
FULL DATA SHEET (PDF, 112kB)
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The MAX1615/MAX1616 are micropower, SOT23-5 linear regulators that supply always-on, keep-alive power to CMOS RAM and microcontrollers (µCs) in systems with high-voltage batteries. Key features include wide input voltage range, low dropout voltage, and low quiescent supply current.

Despite a miserly 8µA (max) no-load supply current, the MAX1615/MAX1616 have excellent line-transient response and AC power-supply rejection ratio. They provide a clean, fixed 5V or 3.3V output (MAX1615) or an adjustable 1.24V to 28V output (MAX1616), even when subjected to fast supply-voltage changes that occur during the switchover from battery to AC adapter input power. The space-saving SOT23-5 package has excellent thermal characteristics and tolerates up to 571mW of power dissipation. Fault protection is provided by internal foldback current limiting and thermal-shutdown circuitry. The MAX1615/MAX1616 are now available in lead-free packages.

Key Features   Applications/Uses
  • 4V to 28V Input Range
  • 8µA (max) Quiescent Supply Current
  • <1µA Shutdown Supply Current
  • 3.3V or 5V, Pin-Selectable Output (MAX1615) Adjustable 1.24V to 28V Output (MAX1616)
  • 30mA Output Current
  • ±2% Initial Output Accuracy
  • Thermal-Overload Protection
  • 5-Pin SOT23 Package
  • Low Cost

 
  • Battery-Powered Systems
  • CMOS/RTC Backup Power
  • Microcontroller Power
  • Notebook Computers
  • PDAs and Handy-Terminals
  • Smart Battery Packs/Chargers

    Key Specifications:   Linear Regulators
    Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (V) Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) Typ. VDROPOUT@ Rated ILOAD (V) Rated ILOAD (mA) Max. ICC (µA) Low Battery/ Power Fail Output POK/ Reset Output Watchdog Reverse Battery Protection Industry Qualified Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX1615  1 4 28 3.3 5 0.35 30 8 No No No No  -  SOT-23/5 9 -40 to +85 $0.79 @ 1k
    MAX1616  1.24 28 Automotive - General $0.79 @ 1k
    See All Linear Regulators (138)
    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
    MAX1615, MAX1616: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-1225; Rev 3; 2004-10-07
    This page last modified: 2007-05-31




             


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