ADP190

Data Sheet FEATURES Low RDSON of 105 mΩ at 1.8 V Internal output discharge resistor (ADP191) Turn-on slew rate limiting (ADP191) 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: <1 μA Ultrasmall 0.8 mm × 0.8 mm, 4-ball, 0.4 mm pitch WLCSP APPLICATIONS Mobile phones Digital cameras and audio devices Portable and battery-powered equipment GENERAL DESCRIPTION The ADP190/ADP191 are high-side load switches designed for operation from 1.1 V to 3.6 V. These load switchs provide power domain isolation for extended power battery life. The devices contain a low on-resistance P-channel MOSFET that supports more than 500 mA of continuous current and minimizes power loss. The low 2 μA (maximum) of ground current and ultralow shutdown current make the ADP190/ADP191 ideal for batteryoperated portable equipment. The built-in level shifter for enable logic makes the ADP190/ADP191 compatible with modern processors and GPIO controllers. Logic Controlled, High-Side Power Switches ADP190/ADP191 TYPICAL APPLICATIONS CIRCUIT VIN + GND – ADP190 ON EN OFF LEVEL SHIFT AND SLEW RATE CONTROL VOUT LOAD 07874-001 Figure 1. VIN + GND – ON EN OFF ADP191 LEVEL SHIFT AND SLEW RATE CONTROL AND LOAD DISCHARGE Figure 2. VOUT LOAD 07874-102 The ADP191 controls the turn-on slew rate of the switch to reduce the input inrush current. The ADP...