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ADP220ACBZ275275R7

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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  
Miniature 6-ball, 1.0 mm × 1.5 mm WLCSP and 6-ball  
bumped bare die  
ON  
V
= 2.8V  
OUT1  
A
B
EN1  
VOUT1  
OFF  
1µF  
Initial accuracy: 1%  
V
= 3.3V  
IN  
Stable with 1 µF ceramic output capacitors  
No noise bypass capacitor required  
Two independent logic controlled enables  
Overcurrent and thermal protection  
Active output pull-down (ADP221)  
Key specifications  
GND  
VIN  
1µF  
TOP VIEW  
(Not to Scale)  
ON  
V
= 2.8V  
OUT2  
C
EN2  
VOUT2  
OFF  
1µF  
High PSRR  
76 dB PSRR up to 1 kHz  
Figure 1. Typical Application Circuit  
70 dB PSRR at 10 kHz  
60 dB PSRR at 100 kHz  
40 dB PSRR at 1 MHz  
VIN  
VOUT1  
Low output noise  
60Ω  
27 µV rms typical output noise at VOUT = 1.2 V  
50 µV rms typical output noise at VOUT = 2.8 V  
Excellent transient response  
THERMAL  
SHUTDOWN  
CURRENT  
LIMIT  
Low dropout voltage: 150 mV @ 200 mA load  
60 µA typical ground current at no load, both LDOs enabled  
100 µs fast turn-on circuit  
EN1  
EN2  
CONTROL  
LOGIC  
AND  
ADP221  
ONLY  
REFERENCE  
ENABLE  
Guaranteed 200 mA output current per regulator  
−40°C to +125°C junction temperature  
ADP220  
CURRENT  
LIMIT  
APPLICATIONS  
GND  
60Ω  
Mobile phones  
VOUT2  
Digital cameras and audio devices  
Portable and battery-powered equipment  
Portable medical devices  
Figure 2. Block Diagram of the ADP220/ADP221  
Post dc-to-dc regulation  
GENERAL DESCRIPTION  
The 200 mA dual output ADP220/ADP221 combine high PSRR,  
low noise, low quiescent current, and low dropout voltage in a  
voltage regulator ideally suited for wireless applications with  
demanding performance and board space requirements.  
without the need for a noise bypass capacitor. The ADP221 also  
includes an active pull-down to quickly discharge output loads.  
The ADP220/ADP221 are available in a miniature 6-ball  
WLCSP package and 6-ball bumped bare die and is stable with  
tiny 1 µF 30% ceramic output capacitors, resulting in the smallest  
possible board area for a wide variety of portable power needs.  
The low quiescent current, low dropout voltage, and wide input  
voltage range of the ADP220/ADP221 extend the battery life of  
portable devices. The ADP220/ADP221 maintain power supply  
rejection greater than 60 dB for frequencies as high as 100 kHz  
while operating with a low headroom voltage. The ADP220  
offers much lower noise performance than competing LDOs  
The ADP220/ADP221 are available in many output voltage  
combinations, ranging from 0.8 V to 3.3 V, and offer overcur-  
rent and thermal protection to prevent damage in adverse  
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  
rightsof third parties that may result fromits use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks andregisteredtrademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 ©2008–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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