ADP220/ADP221Data SheetPIN CONFIGURATION AND FUNCTION DESCRIPTIONS12AEN1VOUT1BGNDVINCEN2VOUT2TOP VIEW(BALL SIDE DOWN) 003 Not to Scale 07572- Figure 3. Pin Configuration Table 5. Pin Function Descriptions Pin No.MnemonicDescription A1 EN1 Enable Input for Regulator 1. Drive EN1 high to turn on Regulator 1; drive it low to turn off Regulator 1. For automatic startup, connect EN1 to VIN. B1 GND Ground Pin. C1 EN2 Enable Input for Regulator 2. Drive EN2 high to turn on Regulator 2; drive it low to turn off Regulator 2. For automatic startup, connect EN2 to VIN. A2 VOUT1 Regulated Output Voltage 1. Connect a 1 µF or greater output capacitor between VOUT1 and GND. B2 VIN Regulator Input Supply. Bypass VIN to GND with a 1 µF or greater capacitor. C2 VOUT2 Regulated Output Voltage 2. Connect a 1 µF or greater output capacitor between VOUT2 and GND. Rev. H | Page 6 of 20 Document Outline Features Applications Typical Application Circuits General Description Table of Contents Revision History Specifications Input and Output Capacitor, Recommended Specifications Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Capacitor Selection Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Undervoltage Lockout Enable Feature Current-Limit and Thermal Overload Protection Thermal Considerations Printed Circuit Board (PCB) Layout Considerations Outline Dimensions Ordering Guide