Logic Controlled, High-Side Power Switch Data Sheet ADP194 FEATURES TYPICAL APPLICATIONS CIRCUIT Low RDS of 80 m at 1.8 V ON ADP194 REVERSE POLARITY Low input voltage range: 1.1 V to 3.6 V PROTECTION 500 mA continuous operating current VOUT VIN + Built-in level shift for control logic that can be operated GND by 1.2 V logic Low 2 A (maximum) ground current LEVEL SHIFT LOAD AND SLEW EN Ultralow shutdown current <0.7 A RATE CONTROL ON Reverse current blocking OFF Ultrasmall 0.8 mm 0.8 mm 0.5mm, 4-ball, 0.4 mm pitch WLCSP Figure 1. APPLICATIONS Mobile phones Digital cameras and audio devices Portable and battery-powered equipment GENERAL DESCRIPTION The ADP194 is a high-side load switch designed for operation portable equipment. The built-in level shifter in the enable logic from 1.1 V to 3.6 V and is protected against reverse current flow input makes the ADP194 compatible with modern processors from output to input. This load switch provides power domain and GPIO controllers. isolation for extended power battery life. The device contains a Beyond operating performance, the ADP194 occupies minimal low on-resistance P-channel MOSFET that supports more than printed circuit board (PCB) space with an area of less than 500 mA of continuous load current and minimizes power loss. 2 0.64 mm and a height of 0.50 mm. The ADP194 is available in The low 2 A (maximum) ground current and ultralow shut- an ultrasmall 0.8 mm 0.8 mm, 4-ball, 0.4 mm pitch WLCSP. down current make the ADP194 ideal for battery-operated Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 08629-001ADP194 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions..............................5 Applications....................................................................................... 1 Typical Performance Characteristics ..............................................6 Typical Applications Circuit............................................................ 1 Theory of Operation .........................................................................8 General Description ......................................................................... 1 Applications Information .................................................................9 Revision History ............................................................................... 2 Ground Current.............................................................................9 Specifications..................................................................................... 3 Enable Feature ...............................................................................9 Timing Diagram ........................................................................... 3 Timing ......................................................................................... 10 Absolute Maximum Ratings............................................................ 4 Thermal Considerations............................................................ 11 Thermal Data ................................................................................ 4 PCB Layout Considerations...................................................... 11 Thermal Resistance ...................................................................... 4 Outline Dimensions....................................................................... 12 ESD Caution.................................................................................. 4 Ordering Guide .......................................................................... 12 REVISION HISTORY 9/11Rev. 0 to Rev. A Changes to Table 2............................................................................ 4 5/11Revision 0: Initial Version Rev. A Page 2 of 12