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LTC3675-1_15

更新时间： 2024-01-31 17:14:59
品牌 Logo 应用领域
凌特 - Linear 集成电源管理电路
页数 文件大小 规格书
38页 585K
描述
7-Channel Configurable High Power PMIC

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中文翻译

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LTC3675-1_15 数据手册

 浏览型号LTC3675-1_15的Datasheet PDF文件第2页浏览型号LTC3675-1_15的Datasheet PDF文件第3页浏览型号LTC3675-1_15的Datasheet PDF文件第4页浏览型号LTC3675-1_15的Datasheet PDF文件第5页浏览型号LTC3675-1_15的Datasheet PDF文件第6页浏览型号LTC3675-1_15的Datasheet PDF文件第7页 
LTC3675/LTC3675-1  
7-Channel Configurable  
High Power PMIC  
FeaTures  
DescripTion  
n
Four Monolithic Synchronous Buck DC/DCs  
The LTC®3675/LTC3675-1 are a digitally programmable  
high efficiency multioutput power supplies plus dual  
string LED driver ICs optimized for high power single cell  
Li-Ion/Polymer applications. The DC/DCs consist of four  
synchronousbuckconverters(1A/1A/500mA/500mA),one  
synchronous boost DC/DC (1A), and one buck-boost DC/  
DC (1A) all powered from a 2.7V to 5.5V input. The 40V  
LED driver can regulate up to 25mA of current through  
two LED strings with up to 10 LEDs each. The LED driver  
may also be configured as a general purpose high voltage  
boost converter.  
(1A/1A/500mA/500mA)  
n
Buck DC/DCs Can Be Paralleled to Deliver Up to  
2× Current with a Single Inductor  
n
Independent 1A Boost and 1A Buck-Boost DC/DCs  
2
n
Dual String I C Controlled 40V LED Driver  
2
n
I C Programmable Output Voltage, Operating  
Mode, and Switch Node Slew Rate for All DC/DCs  
2
2
n
n
I C Read Back of DC/DC, LED Driver, Fault Status  
I C Slave Address Options: LTC3675 = 0001001X,  
LTC3675-1 = 0110100X  
n
Maskable Interrupts to Report DC/DC, V and Die  
IN  
DC/DC enables, output voltages, switch slew rates and  
operating modes may all be independently programmed  
Temperature Faults  
n
n
n
n
2
Pushbutton ON/OFF/RESET  
over I C or used in standalone mode via simple I/O and  
Always-On 25mA LDO  
power-updefaults.ThebuckDC/DCsmaybeusedindepen-  
dently or paralleled to achieve higher output currents with  
a shared inductor. LED enable, 60dB brightness control  
Low Quiescent Current: 16µA (All DC/DCs Off)  
4mm × 7mm × 0.75mm 44-Lead QFN Package  
2
and up/down gradation are programmed using I C. Alarm  
levels for low V and high die temperature may also be  
IN  
applicaTions  
2
programmed via I C with a maskable interrupt output to  
n
High Power (5W to 10W) Single Cell Li-Ion/Polymer  
monitor DC/DC and system faults.  
Applications  
n
Portable Industrial Applications, Handy Terminals,  
Portable Instruments  
Multioutput Low Voltage Power Supplies  
Pushbutton ON/OFF/RESET control and a power-on reset  
output provide flexible and reliable power-up sequencing.  
The LTC3675/LTC3675-1 are available in a low profile  
(0.75mm), thermally enhanced 44-lead 4mm × 7mm  
QFN package.  
n
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks  
of Linear Technology Corporation and Hot Swap is a trademark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Typical applicaTion  
SW1  
SW2  
0.425V TO V , 1A MAX  
IN  
2.7V TO 5.5V  
V
IN  
0.425V TO V , 1A MAX  
IN  
SW3  
0.425V TO V , 500mA MAX  
IN  
0.425V TO V , 500mA MAX  
3
2
I C  
SW4  
SW5  
IN  
LTC3675/  
LTC3675-1  
EN1  
V
V
IN  
IN  
EN2  
VOUT5  
SWAB6  
SWCD6  
VOUT6  
TO 5.35V, 1A MAX  
EN3  
DIGITAL  
CONTROL  
EN4  
ENBB  
IRQB  
RSTB  
WAKE  
PBSTAT  
2.65V TO 5.25V, 1A MAX  
0.8V TO V , 25mA MAX  
LDO_OUT  
IN  
V
IN  
SW7  
ONB  
PUSH BUTTON  
•
•
•
•
•
•
CT  
LED1  
LED2  
0.01µF  
EXPOSED PAD  
UP TO 10 LEDS  
PER STRING  
36751 TA01  
36751fc  
1
For more information www.linear.com/LTC3675  
1234567...38

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