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ADP121CB-2.5-EVALZ

更新时间： 2024-11-26 12:33:51
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 667K
描述
150 mA, Low Quiescent Current, CMOS Linear Regulator

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ADP121CB-2.5-EVALZ 数据手册

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150 mA, Low Quiescent Current,  
CMOS Linear Regulator  
Data Sheet  
ADP121  
FEATURES  
TYPICAL APPLICATION CIRCUITS  
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  
V
= 1.8V  
OUT  
IN  
1
2
3
VIN  
GND  
EN  
VOUT  
5
C
C
IN  
1µF  
OUT  
1µF  
Low quiescent current  
I
I
GND = 11 μA with 0 ꢀA load  
GND = 30 μA with 150 mA load  
4
NC  
ON  
OFF  
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  
OUT  
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  
Current limit and thermal overload protection  
Logic controlled enable  
IN  
VIN  
VOUT  
C
C
IN  
OUT  
1µF  
1µF  
ON  
EN  
GND  
OFF  
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 regulator  
that operates from 2.3 V to 5.5 V and provides 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 makes the ADP121 ideal for battery-operated portable  
equipment.  
The ADP121 is available in output voltages ranging from 1.2 V  
to 3.3 V. The parts are optimized for stable 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 halide-free  
WLCSP packages and utilizes the smallest footprint solution to  
meet a variety of portable applications.  
Rev. G  
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 ofthird parties that may result fromits use. Specifications subject to change without notice. No  
licenseis granted byimplication 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  
www.analog.com  
Fax: 781.461.3113 ©2008–2012 Analog Devices, Inc. All rights reserved.  
 
 
 
 
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