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ADP194:  Logic Controlled, High-Side Power Switch

Product Details

Product Status:Recommended for New Designs

The ADP194 is a high-side load switch designed for operation from 1.1 V to 3.6 V and is protected against reverse current flow from output to input. This load switch provides power domain isolation for extended power battery life. The device contains a low on-resistance P-channel MOSFET that supports more than 500 mA of continuous load current and minimizes power loss. The low 2 μA (maximum) ground current and ultralow shutdown current makes the ADP194 ideal for battery-operated portable equipment. The built-in level shifter in the enable logic input makes the ADP194 compatible with modern processors and GPIO controllers.

Beyond operating performance, the ADP194 occupies minimal printed circuit board (PCB) space with an area less than 0.64 mm2 and a height of 0.50 mm. The ADP194 is available in an ultrasmall 0.8 mm x 0.8 mm, 4-ball, 0.4 mm pitch WLCSP.

- Mobile phones
- Digital cameras and audio devices
- Portable and battery-powered equipment


  • Low RDSON of 80 mΩ at 1.8 V
  • Low input voltage range:
    1.1 V to 3.6 V
  • 500 mA continuous operating current
  • Built-in level shift for control logic that can be operated by
    1.2 V logic
  • Low 2 μA (maximum) ground current
  • Ultralow shutdown current:
    < 0.7 μA
  • Reverse current blocking
  • Ultrasmall 0.8 mm x 0.8 mm x 0.5mm, 4-ball, 0.4 mm pitch WLCSP

Functional Block Diagram for ADP194

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADP194 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
ADP194CB-EVALZ Status: Production Evaluation Board $60.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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