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ADP3000ARZ-5 PDF预览

ADP3000ARZ-5

更新时间: 2024-11-23 14:37:35
品牌 Logo 应用领域
亚德诺 - ADI 开关光电二极管
页数 文件大小 规格书
16页 230K
描述
IC SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO8, MS-012-AA, SOIC-8, Switching Regulator or Controller

ADP3000ARZ-5 数据手册

 浏览型号ADP3000ARZ-5的Datasheet PDF文件第2页浏览型号ADP3000ARZ-5的Datasheet PDF文件第3页浏览型号ADP3000ARZ-5的Datasheet PDF文件第4页浏览型号ADP3000ARZ-5的Datasheet PDF文件第5页浏览型号ADP3000ARZ-5的Datasheet PDF文件第6页浏览型号ADP3000ARZ-5的Datasheet PDF文件第7页 
Micropower Step-Up/Step-Down Fixed 3.3 V, 5 V, 12 V,  
Adjustable High Frequency Switching Regulator  
ADP3000  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
SET  
Operates at supply voltages from 2 V to 30 V  
Works in step-up or step-down mode  
Very few external components required  
High frequency operation up to 400 kHz  
Low battery detector on-chip  
A1  
A0  
V
IN  
I
GAIN BLOCK/  
ERROR AMP  
LIM  
SW1  
1.245V  
REFERENCE  
400kHz  
OSCILLATOR  
User-adjustable current limit  
Fixed and adjustable output voltage  
8-lead PDIP, 8-lead SOIC, and 14-lead TSSOP packages  
Small inductors and capacitors  
DRIVER  
SW2  
COMPARATOR  
R1  
R2  
ADP3000  
APPLICATIONS  
GND  
SENSE  
Notebook, palmtop computers  
Cellular telephones  
Hard disk drives  
Portable instruments  
Pagers  
Figure 1.  
IN5817  
6.8µH  
3.3V  
180mA  
V
IN  
2V TO 3.2V  
100µF  
10V  
120V  
1
2
I
V
LIM  
IN  
SW1  
GENERAL DESCRIPTION  
3
8
ADP3000-3.3V  
The ADP3000 is a versatile step-up/step-down switching  
regulator. It operates from an input supply voltage of 2 V to  
12 V in step-up mode, and from 2 V to 30 V in step-down mode.  
C1  
100µF  
FB  
(SENSE)  
+
10V  
GND  
5
SW2  
4
Operating in pulse frequency mode (PFM), the device consumes  
only 500 µA, making it ideal for applications requiring low  
quiescent current. It delivers an output current of 180 mA at  
3.3 V from a 2 V input in step-up mode, and an output current  
of 100 mA at 3 V from a 5 V input in step-down mode.  
C1, C2 = AVX TPS D107 M010R0100  
L1 = SUMIDA CR43-6R8  
Figure 2. Typical Application  
V
IN  
5V TO 6V  
C1  
100µF  
10V  
R
120Ω  
LIM  
The ADP3000 operates at 400 kHz switching frequency. This  
allows the use of small external components (inductors and  
capacitors), making it convenient for space-constrained designs.  
1
2
3
I
V
SW1  
LIM  
IN  
8
4
FB  
ADP3000  
The auxiliary gain amplifier can be used as a low battery detector,  
linear regulator, undervoltage lockout, or error amplifier.  
SW2  
V
OUT  
3V  
100mA  
L1  
10µH  
R2  
150kΩ  
1%  
GND  
5
C
100µF  
10V  
L
+
D1  
1N5818  
R1  
110kΩ  
1%  
C1, C2 = AVX TPS D107 M010R0100  
L1 = SUMIDA CR43-100  
Figure 3. Step-Down Mode Operation  
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  
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  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  

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