AP22908 Green 1.5A SINGLE SLEW RATE CONTROLLED LOAD SWITCH Description Pin Assignments (Top View) (Bottom View) The AP22908 slew rate controlled load switch is a single P-channel MOSFET power switch designed for high-side load-switching applications. The MOSFET has a typical low R of 28m at DS(ON) 3.6V, allowing increased load current handling capacity with a low forward voltage drop. The turn-on slew rate of the device is controlled internally to avoid inrush current. The AP22908 load switch is designed to operate from 1.08V to 3.6V, making it ideal for 1.2V, 1.8V, 2.5V, 3.3V and 3.6V systems. The typical quiescent supply current is only 0.05A. X1-WLB0909-4 & U-WLB0909-4 The AP22908 is available in the wafer level chip scale 4-pin, X1- (Top View) WLB0909-4 0.5mm pitch, U-WLB0909-4 0.5mm pitch and standard V 1 6 V OUT IN SOT26 packages. 5 GND GND 2 ON 3 4 V IN SOT26 Features Applications Wide Input Voltage Range: 1.08V to 3.6V Mobile Device and Smart Phones Low On-Resistance: Portable Media Devices 69m Typical 1.2V Wearable Devices 41m Typical 1.8V Advanced Notebook, UMPC and MID 33m Typical 2.5V Portable Medical Devices 28m Typical 3.6V GPS and Navigation Equipment High DC Current Capability up to 1.5A Portable Instrumentation Quick Discharging by Output Discharge Resistance Ultra Low Quiescent Current 0.05A Active-High Control Pin Minimum 0.9V V of ON IH ESD Protection: Human Body Model: 2kV Charged Device Model: 1kV Package: X1-WLB0909-4 with Backside Laminate U-WLB0909-4 with Backside Laminate 0.87mm 0.87mm, 0.5mm Ball Pitch Standard Green SOT26 Moisture Sensitivity: Level 1 per J-STD-020 Terminals: Finish Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 (e3) Weight: 0.001 grams (Approximate) Lead-Free Finish RoHS Compliant (Notes 1 & 2) Halogen- and Antimony- Free. Green Device (Note 3) Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 2. See AP22908 Typical Applications Circuit V IN V OUT V V IN OUT AP22908 C OUT C IN 0.1F to 1.0F 1F ON GND Pin Descriptions Pin Number Pin Name X1-WLB0909-4 Function SOT26 U-WLB0909-4 Voltage output pin. This is the pin to the P-channel MOSFET drain connection. Bypass to ground 1 A1 V OUT through a 0.1F to 1F capacitor. Voltage input pin. This is the pin to the P-channel MOSFET source. Bypass to ground through a 4, 6 A2 V IN 1F capacitor. GND 2, 5 B1 Ground ON 3 B2 Enable input, active high Functional Block Diagram V V IN OUT Slew Rate Control ON Output Discharge GND 2 of 19 October 2020 AP22908 Diodes Incorporated www.diodes.com Document number: DS42262 Rev. 3 - 2