Datasheet > 电源电路 > 线性稳压器IC> ADP172ACBZ-2.1-R7

ADP172ACBZ-2.1-R7

更新时间： 2024-11-26 06:36:23

品牌	Logo	应用领域
亚德诺 - ADI		线性稳压器IC 调节器电源电路输出元件 PC
页数	文件大小	规格书
20页	567K
描述
300 mA, Low Quiescent Current, CMOS Linear Regulator

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300 mA, Low Quiescent Current,

CMOS Linear Regulator

ADP172

FEATURES

TYPICAL APPLICATION CIRCUITS

Maximum output current: 300 mA

Input voltage range: 1.6 V to 3.6 V

Low quiescent current

VIN VOUT

= 2.3V

= 1.8V

OUT

1µF

OUT

1µF

GND

_GND= 23 μA with 0 mA load

_GND= 170 μA with 300 mA load

Figure 1. ADP172 with Fixed Output Voltage, 1.8 V

Low shutdown current: <1 μA

Low dropout voltage: 50 mV at 300 mA load

Output voltage accuracy: 1ꢀ

Up to 31 fixed-output voltage options available

from 0.8 V to 3.0 V

Accuracy over line, load, and temperature: 3ꢀ

Stable with small 1 μF ceramic output capacitor

PSRR performance of 70 dB at 10 kHz and 73 dB at 1 kHz

Low noise: 30 μV rms at V_OUT= 0.8 V

Current limit and thermal overload protection

Logic-controlled enable

Tiny 4-ball, 0.5 mm pitch WLCSP package

APPLICATIONS

Mobile phones

Digital camera and audio devices

Portable and battery-powered equipment

DSP/FPGA/microprocessor supplies

Post dc-to-dc regulation

GENERAL DESCRIPTION

The ADP172 is a low voltage input, low quiescent current, low-

dropout (LDO) linear regulator that operates from 1.6 V to 3.6 V

and provides up to 300 mA of output current. The low 50 mV

dropout voltage at 300 mA load improves efficiency and allows

operation over a wide input voltage range. The low 23 μA of

quiescent current at no load makes the ADP172 ideal for

battery-operated portable equipment.

commodity-type LDOs, the ADP172 provides 20 dB to 40 dB

better power supply rejection ratio (PSRR) at 100 kHz, making the

ADP172 an ideal power source for analog-to-digital converter

(ADC) mixed-signal processor systems and allowing use of

smaller size bypass capacitors. In addition, low output noise

performance without the need for an additional bypass capacitor

further reduces printed circuit board (PCB) component count.

The ADP172 is capable of 31 fixed-output voltage options, ranging

from 0.8 V to 3.0 V. The ADP172 is optimized for stable operation

with small 1 μF ceramic output capacitors. Ideal for powering

digital processors, the ADP172 exhibits good transient perform-

ance and occupies minimal board space. Compared with

Short-circuit protection and thermal overload protection circuits

prevent damage in adverse conditions. The ADP172 is available

in a tiny 4-ball, 0.5 mm pitch WLCSP for the smallest footprint

solution to meet a variety of portable power applications.

Rev. 0

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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ADP1740ACPZ-1.0-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1740ACPZ-1.1-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1740ACPZ-1.2-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1740ACPZ-1.3-R7	ADI	获取价格	2 A, Low VIN Dropout, Linear Regulator
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