High-Side Load Switch
Data Sheet
FEATURES
Logic Controlled, 1 A, High-Side Load Switch with Reverse Current Blocking ADP198
TYPICAL APPLICATI...
Description
Data Sheet
FEATURES
Logic Controlled, 1 A, High-Side Load Switch with Reverse Current Blocking ADP198
TYPICAL APPLICATION CIRCUITS
ADP198
VIN + GND LEVEL SHIFT AND SLEW RATE CONTROL LOAD REVERSE POLARITY PROTECTION VOUT
Low RDSON of 50 mΩ @ 3.3 V (WLCSP only) Low input voltage range: 1.65 V to 6.5 V 1 A continuous operating current Built-in level shift for control logic that can be operated by 1.2 V logic Low 2.5 μA quiescent current @ VIN = 2.8 V Low 1.1 μA shutdown current @ VIN = 2.8 V Reverse current blocking Programmable start-up time Ultrasmall 1 mm × 1 mm, 4-ball, 0.5 mm pitch (WLCSP) Tiny 8-lead lead frame chip scale package (LFCSP) 2.0 mm × 2.0 mm × 0.55 mm, 0.5 mm pitch
EN
ON OFF
Figure 1. WLCSP
ADP198
VIN + VIN SEL0 SEL1
ON OFF
APPLICATIONS
Mobile phones Digital cameras and audio devices Portable and battery-powered equipment
REVERSE POLARITY PROTECTION VOUT
VOUT
SLEW RATE CONTROL
LOAD
EN
LEVEL SHIFT
09484-002
GND
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Figure 2. LFCSP
GENERAL DESCRIPTION
The ADP198 is a high-side load switch designed for operation between 1.65 V and 6.5 V that is protected against reverse current flow from output to input. A load switch provides power domain isolation, thereby helping to keep subsystems isolated and powered independently and enabling reduced power consumption. The ADP198 contains a low on-resistance P-channel MOSFET that supports more than 1 A of continuous load current. The low 2.5 μA quiescent current and ultralow shutdown cur...
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