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ADP121CB-2.8-EVALZ PDF预览

ADP121CB-2.8-EVALZ

更新时间： 2024-11-23 02:54:11
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
20页 593K
描述
150 mA, Low Quiescent Current, CMOS Linear Regulator

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ADP121CB-2.8-EVALZ 数据手册

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150 mA, Low Quiescent Current,  
CMOS Linear Regulator  
ADP121  
TYPICAL APPLICATION CIRCUITS  
FEATURES  
Input voltage range: 2.3 V to 5.5 V  
Output voltage range: 1.2 V to 3.3 V  
Output current: 150 mA  
V
= 2.3V  
1µF  
V
= 1.8V  
OUT  
IN  
5
4
1
2
3
VIN  
GND  
EN  
VOUT  
NC  
1µF  
Low quiescent current  
I
I
GND = 11 μA with 0 ꢀA load  
GND = 30 μA with 150 mA load  
NC = NO CONNECT  
Low shutdown current: <1 μA  
Low dropout voltage  
Figure 1. ADP121 TSOT with Fixed Output Voltage, 1.8 V  
90 mV @ 150 mA load  
High PSRR  
V
= 1.8V  
V
= 2.3V  
1µF  
OUT  
IN  
VIN  
EN  
VOUT  
GND  
70 dB @ 1 kHz at VOUT = 1.2 V  
70 dB @ 10 kHz at VOUT = 1.2 V  
Low noise: 40 μV rms at VOUT = 1.2 V  
No noise bypass capacitor required  
Output voltage accuracy: 1ꢁ  
Stable with a small 1 μF ceramic output capacitor  
16 fixed output voltage options  
Current limit and thermal overload protection  
Logic controlled enable  
1µF  
Figure 2. ADP121 WLCSP with Fixed Output Voltage, 1.8 V  
5-lead TSOT package  
4-ball 0.4 mm pitch WLCSP  
APPLICATIONS  
Mobile phones  
Digital cameras and audio devices  
Portable and battery-powered equipment  
Post dc-to-dc regulation  
Post regulation  
GENERAL DESCRIPTION  
The ADP121 is a quiescent current, low dropout, linear regulators  
that operate from 2.3 V to 5.5 V and provide up to 150 mA of  
output current. The low 135 mV dropout voltage at 150 mA  
load improves efficiency and allows operation over a wide  
input voltage range. The low 30 μA of quiescent current at full  
load make the ADP121 ideal for battery-operated portable  
equipment.  
operation with small 1 ꢀF ceramic output capacitors. The  
ADP121 delivers good transient performance with minimal  
board area.  
Short-circuit protection and thermal overload protection circuits  
prevent damage in adverse conditions. The ADP121 is available  
in a tiny 5-lead TSOT and 4-ball 0.4 mm pitch WLCSP pack-  
ages and utilizes the smallest footprint solution to meet a  
variety of portable applications.  
The ADP121 is available in 16 fixed output voltage options  
ranging from 1.2 V to 3.3 V. The parts are optimized for stable  
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  
©2008 Analog Devices, Inc. All rights reserved.  
 
 
 
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