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LT3513

更新时间： 2024-09-25 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
22页 378K
描述
用于 TFT-LCD 屏的 2MHz、高电流、5 输出稳压器

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中文翻译

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LT3513 数据手册

 浏览型号LT3513的Datasheet PDF文件第2页浏览型号LT3513的Datasheet PDF文件第3页浏览型号LT3513的Datasheet PDF文件第4页浏览型号LT3513的Datasheet PDF文件第5页浏览型号LT3513的Datasheet PDF文件第6页浏览型号LT3513的Datasheet PDF文件第7页 
LT3513  
2MHz High Current  
5-Output Regulator  
for TFT-LCD Panels  
FeaTures  
DescripTion  
The LT®3513 5-output adjustable switching regulator  
provides power for large TFT-LCD panels. The 38-pin  
5mm × 7mm QFN device can generate a 3.3V or 5V logic  
supply along with the triple output supply required for the  
TFT-LCD panel. A lower voltage secondary logic supply  
may also be generated with the addition of an external  
NPN driven by the internal linear regulator. A step-down  
n
4.5V to 30V Input Voltage Range  
Four Integrated Switches: 2.2A Buck, 1.5A Boost,  
n
0.25A Boost, 0.25A Inverter (Guaranteed Minimum  
Current Limit)  
n
External NPN LDO Driver  
n
Fixed Frequency, Low Noise Outputs  
n
Inductor Current Sense for Buck  
n
Soft-Start for All Outputs  
regulator provides a low voltage output, V  
, with up  
LOGIC  
n
Externally Programmable V Delay  
to 1.2A of current while capable of operating from a wide  
input range of 4.5V to 30V. A high power step-up con-  
verter, a lower power step-up converter and an inverting  
converter provide the three independent output voltages:  
ON  
n
n
n
n
Three Integrated Schottky Diodes  
PGOOD Pin for AV Output Disconnect  
DD  
PanelProtect™ Circuitry Disables V Upon Fault  
ON  
Thermally Enhanced 38-Lead 5mm × 7mm QFN  
AV , V andV requiredbytheLCDpanel. Ahigh-side  
DD ON OFF  
Package  
PNP provides delayed turn-on of the V signal and can  
ON  
handle up to 30mA. Protection circuitry ensures that V  
ON  
is disabled if any of the four outputs are more than 10%  
applicaTions  
below the programmed voltage.  
n
Automotive TFT-LCD Displays  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
PanelProtect, True Color PWM and ThinSOT are trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
n
Large TFT-LCD Desktop Monitors  
n
Flat Panel Televisions  
Typical applicaTion  
10µH  
V
V
IN  
LOGIC  
5V  
8V TO 16V  
10µF  
178k  
53.6k  
10k  
100k  
10µF  
0.47µF  
V
OFF  
–10V  
60.4k  
20mA  
UVLO LDOPWR  
SW4  
V
IN  
SW2  
FB2  
AV  
DD  
2.2µF  
10µH  
Start-Up Waveforms  
8V  
80mA  
69.8k  
10k  
D4  
PGOOD  
NFB4  
BIAS  
RUN-SS1  
RUN-SS2  
RUN/SS 2V/DIV  
V
5V/DIV  
BOOST  
RUN-SS3/4  
LOGIC  
AV 10V/DIV  
0.22µF  
DD  
OFF  
4.7µH  
C
T
V
10V/DIV  
V
47nF  
15nF  
15nF  
15nF  
SW1  
LOGIC  
5V  
0.5A  
LT3513  
+
SENSE  
SENSE  
FB1  
–
30.1k  
V
V
ON_CLK  
ON_CLK  
V
ON  
V
ON  
22V  
22µF  
10k  
232k  
20mA  
V
20V/DIV  
20V/DIV  
V
E3  
ONSINK  
E3  
V
ON  
6.8µH  
165k  
10k  
I
1A/DIV  
IN(AVG)  
V
LOGIC  
BD  
FB5  
SW3  
FB3  
5V  
V
3.3V  
0.5A  
LDO  
0.47µF  
3513 TA01b  
5ms/DIV  
V
V
GND  
V
V
C4  
C1  
C2  
C3  
42.2k  
10k  
2.2µF  
10µF  
7.5k  
2.7nF  
4.7k  
30k  
13k  
2.2nF  
4.7nF 1.5nF  
3513 TA01a  
3513fc  
1
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中文翻译

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