Datasheet > ADP222ACPZ-1233R7

ADP222ACPZ-1233R7

更新时间： 2024-11-23 19:43:27

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管输出元件调节器
页数	文件大小	规格书
24页	798K
描述
IC VREG FIXED POSITIVE REGULATOR, PDSO8, 2.00 X 2.00 MM, ROHS COMPLIANT, LFCSP-8, Fixed Positive Multiple Output Standard Regulator

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Dual, 300 mA Output, Low Noise,

High PSRR Voltage Regulators

ADP222/ADP223/ADP224/ADP225

FEATURES

TYPICAL APPLICATION CIRCUITS

= 4.2V

Input voltage range: 2.5 V to 5.5 V

Small, 8-lead, 2 mm × 2 mm LFCSP package

Initial accuracy: 1ꢀ

High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz

Low noise: 27 μV rms at V_OUT= 1.2 V, 50 μV rms at V_OUT= 2.8 V

Excellent transient response

Low dropout voltage: 170 mV at 300 mA load

65 μA typical ground current at no load, both LDOs enabled

Quick output discharge (QOD)—ADP224/ADP225

Overcurrent and thermal protection

1µF

OFF

EN1

ADJ1

ADP223/

ADP225

OFF

VOUT2 = 2.0V

EN2

VOUT1

1µF

GND

ADJ2

VIN

VOUT1 = 2.8V

VOUT2

1µF

APPLICATIONS

Mobile phones

Digital camera and audio devices

Portable and battery-powered equipment

Portable medical devices

Figure 1. ADP223/ADP225

= 4.2V

1µF

Post dc-to-dc regulation

OFF

EN1

SENSE1

ADP222/

ADP224

OFF

VOUT1 = 1.5V

EN2

VOUT1

1µF

GND

VIN

VOUT2 = 3.3V

SENSE2

VOUT2

1µF

Figure 2. ADP222/ADP224

GENERAL DESCRIPTION

The 300 mA, adjustable dual output ADP223/ADP225 and

fixed dual output ADP222/ADP224 combine high PSRR, low

noise, low quiescent current, and low dropout voltage in a

voltage regulator that is ideally suited for wireless applications

with demanding performance and board space requirements.

ADP222/ADP223/ADP224/ADP225 offer much lower noise

performance than competing LDOs without the need for a

noise bypass capacitor. Overcurrent and thermal protection

circuitry prevent damage in adverse conditions.

The ADP224 and ADP225 are identical to the ADP222 and

ADP223, respectively, but with the addition of a quick output

discharge (QOD) feature.

The low quiescent current, low dropout voltage, and wide input

voltage range of the ADP222/ADP223/ADP224/ADP225

extend the battery life of portable devices.

The ADP222/ADP223/ADP224/ADP225 are available in a

small 8-lead, 2 mm × 2 mm LFCSP package and are stable with

tiny 1 μF, 30ꢀ ceramic output capacitors, resulting in the smallest

possible board area for a wide variety of portable power needs.

The ADP222/ADP223/ADP224/ADP225 maintain power

supply rejection greater than 60 dB for frequencies as high as

100 kHz while operating with a low headroom voltage. The

Rev. A

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

rights of third parties that may result from its 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 and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与ADP222ACPZ-1233R7相关器件

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