Dual, 200 mA, Low Noise, High PSRR Voltage Regulator Data Sheet ADP220/ADP221 FEATURES TYPICAL APPLICATION CIRCUITS 1 2 Input voltage range: 2.5 V to 5.5 V Dual independent 200 mA low dropout voltage regulators ON V = 2.8V OUT1 A EN1 VOUT1 OFF Miniature 6-ball, 1.0 mm 1.5 mm WLCSP and 6-ball 1F bumped bare die Initial accuracy: 1% V = 3.3V IN Stable with 1 F ceramic output capacitors B GND VIN No noise bypass capacitor required 1F TOP VIEW Two independent logic controlled enables (Not to Scale) Overcurrent and thermal protection ON V = 2.8V OUT2 C Active output pull-down (ADP221) EN2 VOUT2 OFF 1F Key specifications High PSRR Figure 1. Typical Application Circuit 76 dB PSRR up to 1 kHz 70 dB PSRR at 10 kHz 60 dB PSRR at 100 kHz 40 dB PSRR at 1 MHz VIN VOUT1 Low output noise 60 27 V rms typical output noise at V = 1.2 V OUT THERMAL CURRENT SHUTDOWN LIMIT 50 V rms typical output noise at V = 2.8 V OUT Excellent transient response Low dropout voltage: 150 mV 200 mA load EN1 CONTROL LOGIC 60 A typical ground current at no load, both LDOs enabled ADP221 REFERENCE ONLY AND 100 s fast turn-on circuit ENABLE EN2 Guaranteed 200 mA output current per regulator 40C to +125C junction temperature ADP220 CURRENT LIMIT APPLICATIONS GND 60 Mobile phones VOUT2 Digital cameras and audio devices Portable and battery-powered equipment Figure 2. Block Diagram of the ADP220/ADP221 Portable medical devices Post dc-to-dc regulation GENERAL DESCRIPTION The 200 mA dual output ADP220/ADP221 combine high PSRR, without the need for a noise bypass capacitor. The ADP221 also low noise, low quiescent current, and low dropout voltage in a includes an active pull-down to quickly discharge output loads. voltage regulator ideally suited for wireless applications with The ADP220/ADP221 are available in a miniature 6-ball demanding performance and board space requirements. WLCSP package and 6-ball bumped bare die and is stable with The low quiescent current, low dropout voltage, and wide input tiny 1 F 30% ceramic output capacitors, resulting in the smallest voltage range of the ADP220/ADP221 extend the battery life of possible board area for a wide variety of portable power needs. portable devices. The ADP220/ADP221 maintain power supply The ADP220/ADP221 are available in many output voltage rejection greater than 60 dB for frequencies as high as 100 kHz combinations, ranging from 0.8 V to 3.3 V, and offer overcur- while operating with a low headroom voltage. The ADP220 rent and thermal protection to prevent damage in adverse offers much lower noise performance than competing LDOs conditions. Rev. H Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20082013 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 07572-001 07572-002ADP220/ADP221 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................7 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 11 Typical Application Circuits ............................................................ 1 Applications Information .............................................................. 12 General Description ......................................................................... 1 Capacitor Selection .................................................................... 12 Revision History ............................................................................... 2 Undervoltage Lockout ............................................................... 13 Specifications ..................................................................................... 3 Enable Feature ............................................................................ 13 Input and Output Capacitor, Recommended Specifications .. 4 Current-Limit and Thermal Overload Protection ................. 14 Absolute Maximum Ratings ............................................................ 5 Thermal Considerations ............................................................ 14 Thermal Data ................................................................................ 5 Printed Circuit Board (PCB) Layout Considerations ................ 16 Thermal Resistance ...................................................................... 5 Outline Dimensions ....................................................................... 17 ESD Caution .................................................................................. 5 Ordering Guide .......................................................................... 18 Pin Configuration and Function Descriptions ............................. 6 REVISION HISTORY 1/13Rev. G to Rev. H 1/10Rev. B to Rev. C Changes to Undervoltage Lockout Input Voltage Rising Changes to Figure 24 ...................................................................... 10 Parameter and Undervoltage Lockout Input Voltage Falling Parameter, Table 1 ............................................................................. 3 10/09Rev. A to Rev. B Changes to Features Section ............................................................ 1 11/12Rev. F to Rev. G Changes to Table 3 and Table 4........................................................ 5 Changes to Figure 4, Figure 6, Figure 7, and Figure 9 .................. 7 Added 6-Ball Bumped Bare Die (CD-6-7) ...................... Universal Change to Undervoltage Lockout Input Voltage Rising Changes to Figure 10 and Figure 12 ............................................... 8 Parameter, Table 1 ............................................................................. 3 Changes to Figure 17 ......................................................................... 9 Updated Outline Dimensions ....................................................... 17 Changes to Figure 25 ...................................................................... 10 Moved Ordering Guide .................................................................. 18 Changes to Enable Feature Section and Figure 32 ..................... 13 Changes to Current-Limit and Thermal Overland Protection 4/12Rev. E to Rev. F Section and Thermal Considerations Section ............................ 14 Changes to Ordering Guide .......................................................... 17 Changes to Ordering Guide .......................................................... 17 11/10Rev. D to Rev. E 3/09Rev. 0 to Rev. A Changes to Ordering Guide .......................................................... 17 Changes to Figure 15 ......................................................................... 8 Changes to Figure 16 ......................................................................... 9 5/10Rev. C to Rev. D Changes to Ordering Guide .......................................................... 17 Changes to Figure 1 .......................................................................... 1 Changes to Ordering Guide .......................................................... 17 10/08Revision 0: Initial Version Rev. H Page 2 of 20