High-Side, n-Channel MOSFET Switch Driver

Industry's Lowest Supply Current High-Side n-Channel MOSFET Driver

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The MAX1614 drives high-side, n-channel power MOSFETs to provide battery power-switching functions in portable equipment. The n-channel power MOSFETs typically have one-third the on-resistance of p-channel MOSFETs of similar size and cost. An internal micropower regulator and charge pump generate the high-side drive output voltage, while requiring no external components.

The MAX1614 also features a 1.5%-accurate low-battery comparator that can be used to indicate a low-battery condition, provide an early power-fail warning to the system microprocessor, or disconnect the battery from the load, preventing deep discharge and battery damage. An internal latch allows for pushbutton on/off control with very low current consumption. Off-mode current consumption is only 6µA while normal operation requires less than 25µA. The MAX1614 is available in the space-saving µMAX® package that occupies about 60% less space than a standard 8-pin SO.
MAX1614: Typical Operating Circuit MAX1614: Typical Operating Circuit Enlarge+

Key Features

  • Integration Provides a Simple-to-Use Solution
    • Requires No External Components
    • Internal On/Off Latch Facilitates Pushbutton Control
    • 1.5% Accurate Low-Battery Detector Protects Battery and Data Stored in Memory
    • Controlled Turn-On for Low Inrush Current
  • Low Power Consumption Extends Battery Life
    • 25µA (max) Quiescent Current
    • 6µA (max) Shutdown Current
  • µMAX Package is 60% Smaller Than Typical 8-pin SO Solution
  • Supports Typical Requirements of Portable, Battery- Powered Designs
    • 5V to 26V Input Voltage Range
    • Drives Single or Back-to-Back MOSFETs


  • Battery Packs
  • Handheld Instruments (PDAs, Palmtops)
  • Notebook Computers
  • Portable Equipment

See parametric specs for MOSFET Drivers (35)

Part NumberNo. of DriversLogic PolarityConfig.VSUPPLY
Package/PinsOper. Temp.
See Notes
MAX1614 1
High-Side N Drive5 to 26
-40 to +85
0 to +70
$2.31 @1k

Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: MAX1614.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Type ID Title
Reference Circuit240Overcurrent Monitor Operates up to 26V