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ADP1612-BL1-EVZ

更新时间： 2024-11-23 06:36:23
品牌 Logo 应用领域
亚德诺 - ADI 转换器开关
页数 文件大小 规格书
28页 1262K
描述
650 kHz /1.3 MHz Step-Up PWM DC-to-DC Switching Converters

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ADP1612-BL1-EVZ 数据手册

 浏览型号ADP1612-BL1-EVZ的Datasheet PDF文件第2页浏览型号ADP1612-BL1-EVZ的Datasheet PDF文件第3页浏览型号ADP1612-BL1-EVZ的Datasheet PDF文件第4页浏览型号ADP1612-BL1-EVZ的Datasheet PDF文件第5页浏览型号ADP1612-BL1-EVZ的Datasheet PDF文件第6页浏览型号ADP1612-BL1-EVZ的Datasheet PDF文件第7页 
650 kHz /1.3 MHz Step-Up  
PWM DC-to-DC Switching Converters  
ADP1612/ADP1613  
FEATURES  
TYPICAL APPLICATION CIRCUIT  
L1  
Current limit  
1.4 A for the ADP1612  
2.0 A for the ADP 1613  
Minimum input voltage  
1.8 V for the ADP1612  
2.5 V for the ADP1613  
Pin-selectable 650 kHz or 1.3 MHz PWM frequency  
Adjustable output voltage up to 20 V  
Adjustable soft start  
ADP1612/  
D1  
ADP1613  
V
V
OUT  
IN  
6
3
7
8
5
2
1
VIN  
EN  
SW  
FB  
ON  
R1  
R2  
OFF  
C
IN  
1.3MHz  
650kHz  
(DEFAULT)  
FREQ  
SS  
COMP  
C
OUT  
GND  
4
R
COMP  
C
SS  
Undervoltage lockout  
Thermal shutdown  
C
COMP  
8-lead MSOP  
Figure 1. Step-Up Regulator Configuration  
APPLICATIONS  
TFT LCD bias supplies  
Portable applications  
Industrial/instrumentation equipment  
100  
GENERAL DESCRIPTION  
V
= 5V  
IN  
fSW = 1.3MHz  
= 25°C  
The ADP1612/ADP1613 are step-up dc-to-dc switching con-  
verters with an integrated power switch capable of providing  
an output voltage as high as 20 V. With a package height of less  
than 1.1 mm, the ADP1612/ADP1613 are optimal for space-  
constrained applications such as portable devices or thin film  
transistor (TFT) liquid crystal displays (LCDs).  
90  
80  
70  
T
A
60  
50  
40  
The ADP1612/ADP1613 operate in current mode pulse-width  
modulation (PWM) with up to 94% efficiency. Adjustable  
soft start prevents inrush currents when the part is enabled.  
The pin-selectable switching frequency and PWM current-mode  
architecture allow for excellent transient response, easy noise  
filtering, and the use of small, cost-saving external inductors  
and capacitors. Other key features include undervoltage lockout  
(UVLO), thermal shutdown (TSD), and logic controlled enable.  
ADP1612, V  
ADP1612, V  
ADP1613, V  
ADP1613, V  
= 12V  
OUT  
OUT  
OUT  
OUT  
= 15V  
= 12V  
= 15V  
30  
1
10  
100  
1k  
LOAD CURRENT (mA)  
Figure 2. ADP1612/ADP1613 Efficiency for Various Output Voltages  
The ADP1612/ADP1613 are available in the lead-free  
8-lead MSOP.  
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 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  
©2009 Analog Devices, Inc. All rights reserved.  
 
 
 
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