AP22850 0 10V SINGLE CHANNEL PROGRAMMABLE LOAD SWITCH Description Pin Assignments AP22850 is an integrated P-Channel load switch, which features an Top View Bottom View adjustable ramp-up and discharge rate that can be set via an external capacitor and a resistor, respectively. In addition, it incorporates a SS SS 1 8 DIS 8 1 power good output to flag when the switch is fully enhanced. The P- EN Channel switch has a typical R of 21m, enabling a current EN 2 7 7 2 DS(ON) PG VOUT VOUT handling capability of up to 8A. VIN 3 6 6 3 VIN VBIAS AP22850 is designed to operate from 4.5V to 11V. The near-zero 4 5 5 4 VIN VIN GND quiescent supply current makes it ideal for use in battery powered distribution systems where power consumption is a concern. W-DFN2020-8 Even as a P-Channel load switch, AP22850 does not require an external gate pull-up resistor, and consequently, stays true to its headlining feature of near-zero quiescent current specification. It also features circuitry to suppress fast input transients (with EN low) from coupling to VOUT. Applications Feature Integrated Load Switches in Ultrabook PCs Near-Zero Quiescent Current Power Up/Down Sequencing in Ultrabook PCs No External Gate Pull-Up Resistor Required Tablets Suppresses Fast Transients on VIN Notebooks / Netbooks 4.5V to 11V Input Voltage Range E-Readers Low Typical R of 21m DS(ON) Consumer Electronics Adjustable Start-Up and Discharge Rate Set-Top Boxes Small Form Factor Package W-DFN2020-8 2 Industrial Systems Footprint of just 4mm Telecom Systems Thermally Efficient Package with an Exposed Pad Case Material: Molded Plastic, Green Molding Compound. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Lead-Free Plating (NiPdAu Finish over Copper Leadframe). e4 Terminals: Solderable per MIL-STD-202, Method 208 Weight: TBD grams (Approximate) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See AP22850 0 Typical Applications Circuit VIN VOUT R C C R DIS SS L L VBIAS DIS AP22850 EN SS ON R PULL-UP OFF PG GND Pin Descriptions Pin Name Pin Number Function Soft-Start Adjust SS 1 An external capacitor connected between this pin and VOUT sets the ramp-up time of VOUT Enable Input EN 2 Active high Input Voltage VIN 3, 4 Connects to the Source of the P-channel MOSFET GND 5 Ground Supply Voltage VBIAS 6 Recommended range: 2.5V VBIAS 5.5V Power Good PG 7 Open-drain output to indicate when the P-channel pass switch is fully enhanced Output Discharge DIS 8 An external resistor between DIS and VOUT sets the discharge rate of VOUT Output Voltage VOUT PAD PAD connects to the Drain of the P-channel MOSFET 2 of 14 AP22850 March 2015 Diodes Incorporated www.diodes.com Document number: DS36540 Rev. 2 - 2 ADVANCED INFORMATION