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ADP3050ARZ-5-REEL7

更新时间： 2024-11-05 12:31:39
品牌 Logo 应用领域
亚德诺 - ADI 稳压器开关
页数 文件大小 规格书
20页 354K
描述
200 kHz, 1 A High Voltage Step-Down Switching Regulator

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ADP3050ARZ-5-REEL7 数据手册

 浏览型号ADP3050ARZ-5-REEL7的Datasheet PDF文件第2页浏览型号ADP3050ARZ-5-REEL7的Datasheet PDF文件第3页浏览型号ADP3050ARZ-5-REEL7的Datasheet PDF文件第4页浏览型号ADP3050ARZ-5-REEL7的Datasheet PDF文件第5页浏览型号ADP3050ARZ-5-REEL7的Datasheet PDF文件第6页浏览型号ADP3050ARZ-5-REEL7的Datasheet PDF文件第7页 
200 kHz, 1 A High Voltage  
Step-Down Switching Regulator  
Data Sheet  
ADP3050  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
BIAS  
3
IN  
8
Wide input voltage range: 3.6 V to 30 V  
Adjustable and fixed (3.3 V, 5 V) output options  
Integrated 1 A power switch  
Uses small surface-mount components  
Cycle-by-cycle current limiting  
CURRENT SENSE  
AMPLIFIER  
2.50V  
6
7
SD  
REGULATOR  
GND  
Peak input voltage (100 ms): 60 V  
Configurable as a buck, buck-boost, and SEPIC  
regulator  
FREQUENCY  
AND CURRENT LIMIT  
FOLDBACK  
CURRENT  
LIMIT  
Available in 8-lead SOIC package  
Supported by ADIsimPower™ design tool  
200kHz  
+
OSCILLATOR  
APPLICATIONS  
2
1
BOOST  
4
FB  
CMP  
Industrial power systems  
PC peripheral power systems  
Preregulator for linear regulators  
Distributed power systems  
Automotive systems  
S
R
Q
DRIVER  
SWITCH  
g
m
ADP3050  
1.2V  
Battery chargers  
5
COMP  
Figure 1.  
GENERAL DESCRIPTION  
The ADP3050 is a current mode monolithic buck (step down)  
PWM switching regulator that contains a high current 1 A power  
switch and all control, logic, and protection functions. It uses a  
unique compensation scheme allowing the use of any type of  
output capacitor (tantalum, ceramic, electrolytic, OS-CON).  
Unlike some buck regulators, the design is not restricted to using  
a specific type of output capacitor or ESR value.  
The ADP3050 includes a shutdown input that places the device  
in a low power mode, reducing the total supply current to under  
20 µA. Internal protection features include thermal shutdown  
circuitry and a cycle-by-cycle current limit for the power switch  
to provide complete device protection under fault conditions.  
The ADP3050 provides excellent line and load regulation,  
maintaining typically less than 3% output voltage accuracy  
over temperature and under all input voltage and output  
current conditions.  
A special boosted drive stage is used to saturate the NPN power  
switch, providing a system efficiency higher than conventional  
bipolar buck switchers. Further efficiency improvements are  
obtained by using the low voltage regulated output to provide  
the internal operating current of the device. A high switching  
frequency allows the use of small external surface-mount compo-  
nents. A wide variety of standard off-the-shelf devices can be  
used, providing a great deal of design flexibility. A complete  
regulator design requires only a few external components.  
The ADP3050 is specified over the industrial temperature range  
of −40°C to +85°C and is available in a thermally enhanced 8-lead  
(not Pb-free only) SOIC package and a standard 8-lead (Pb-free  
only) RoHS-compliant SOIC package.  
Rev. C  
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 registered trademarks are the 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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ADP3050ARZ-5-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
ADP3050AR-5-REEL7 ADI

完全替代

 IC 2.1 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8, MS-012AA, SOIC-8, Switchi
ADP3050ARZ-5-REEL ADI

完全替代

 200 kHz, 1 A High Voltage Step-Down Switching Regulator

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