Dual, 200 mA, Low Noise,

High PSRR Voltage Regulator

Data Sheet

ADP220/ADP221

Rev. H

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

FEATURES

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

Initial accuracy: ±1%

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

High PSRR

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

Low output noise

Excellent transient response

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

Guaranteed 200 mA output current per regulator

−40°C to +125°C junction temperature

APPLICATIONS

Mobile phones

Digital cameras and audio devices

Portable and battery-powered equipment

Portable medical devices

Post dc-to-dc regulation

TYPICAL APPLICATION CIRCUITS

EN1

VOUT1

GND

VIN

EN2

VOUT2

TOP VIEW

(Not to Scale)

1

A

B

C

2

1µF

1µF

1µF

OFF

ON

OFF

ON

Figure 1. Typical Application Circuit

THERMAL

SHUTDOWN

EN1

EN2

GND

CURRENT

LIMIT

CURRENT

LIMIT

60Ω

60Ω

REFERENCE

ADP221

ONLY

CONTROL

LOGIC

AND

ENABLE

VIN

VOUT1

VOUT2

ADP220

Figure 2. Block Diagram of the ADP220/ADP221

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.

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

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 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.