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LT3513EUHF-TRPBF

更新时间： 2024-09-24 05:43:31
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
20页 262K
描述
2MHz High Current 5-Output Regulator for TFT-LCD Panels

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中文翻译

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LT3513EUHF-TRPBF 数据手册

 浏览型号LT3513EUHF-TRPBF的Datasheet PDF文件第2页浏览型号LT3513EUHF-TRPBF的Datasheet PDF文件第3页浏览型号LT3513EUHF-TRPBF的Datasheet PDF文件第4页浏览型号LT3513EUHF-TRPBF的Datasheet PDF文件第5页浏览型号LT3513EUHF-TRPBF的Datasheet PDF文件第6页浏览型号LT3513EUHF-TRPBF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  
PanelProtectTM Circuitry Disables V Upon Fault  
ON  
Thermally Enhanced 38-Lead 5mm × 7mm QFN  
Package  
AV , V andV requiredbytheLCDpanel. Ahigh-side  
DD ON OFF  
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 and LTM are registered trademarks of Linear Technology Corporation.  
PanelProtect is a trademark of Linear Technology Corporation.  
n
Large TFT-LCD Desktop Monitors  
All other trademarks are the property of their respective owners.  
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
SW2  
FB2  
IN  
AV  
DD  
2.2μF  
10μH  
8V  
Start-Up Waveforms  
80mA  
69.8k  
10k  
D4  
PGOOD  
NFB4  
BIAS  
RUN-SS1  
RUN-SS2  
RUN/SS 2V/DIV  
BOOST  
RUN-SS3/4  
V
5V/DIV  
LOGIC  
AV 10V/DIV  
0.22μF  
4.7μH  
C
T
DD  
OFF  
V
47nF  
15nF  
15nF  
15nF  
SW1  
LOGIC  
5V  
0.5A  
V
10V/DIV  
LT3513  
+
SENSE  
SENSE  
FB1  
–
30.1k  
V
V
ON_CLK  
ON_CLK  
V
ON  
V
ON  
22V  
22μF  
10k  
232k  
20mA  
V
ONSINK  
E3  
V
20V/DIV  
E3  
V
20V/DIV  
1A/DIV  
ON  
6.8μH  
165k  
10k  
V
I
LOGIC  
IN(AVG)  
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  
3513fa  
1
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中文翻译

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