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3.6 V, 500 mA Logic Controlled
High-Side Load Switch
Data Sheet
FEATURES
Constant low RDS ON of 40 m? over input voltage range
Low input voltage range: 0.9 V to 3.6 V
500 mA continuous operating current at 85°C
1.2 V logic compatible enable input
Low 6 μA quiescent current, independent of load current
Ultralow shutdown current: <100 nA
Ultrasmall 0.8 mm × 0.8 mm × 0.5 mm, 4-ball,
0.4 mm pitch WLCSP
APPLICATIONS
Low operating voltage processors
Mobile phones
Digital cameras and audio devices
Portable and battery-powered equipment
Optical XMT/RCVR modules
ADP199
GENERAL DESCRIPTION
The ADP199 is a high-side load switch designed for opera-
tion between 0.9 V to 3.6 V. A load switch provides power
domain isolation, thereby helping to keep subsystems isolated
and powered independently, and enabling reduced power
consumption.
The ADP199 contains a low on-resistance, N-channel MOSFET
to minimize power loss, and supports over 500 mA of continuous
load current. The low 6 μA quiescent current and ultralow
shutdown current make the ADP199 ideal for battery-operated
portable equipment. The built-in level shifter for enable logic
makes the ADP199 compatible with many processors and GPIO
controllers.
In addition to high performance, the ADP199 occupies mini-
mal printed circuit board (PCB) space with an area of less than
0.64 mm 2 and a height of 0.50 mm.
The ADP199 is available in an ultra-small, 0.8 mm × 0.8 mm ×
0.5 mm, 4-ball, 0.4 mm pitch WLCSP.
TYPICAL APPLICATIONS CIRCUIT
+
VIN
VOUT
–
GND
EN OFF
ON
4M ?
CHARGE PUMP
AND SLEW RATE
CONTROL
LOAD
ADP199
Figure 1.
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
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2011–2012 Analog Devices, Inc. All rights reserved.
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