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LTC3106

更新时间： 2024-11-14 14:58:23
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
38页 1761K
描述
具 PowerPath 和 1.6μA 静态电流的 300mA 低电压降压-升压型转换器

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中文翻译

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LTC3106 数据手册

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LTC3106  
300mA Low Voltage  
Buck-Boost Converter with  
PowerPath and 1.6µA Quiescent Current  
FeaTures  
DescripTion  
TheLTC®3106isahighlyintegrated,ultralowvoltagebuck-  
boost DC/DC converter with automatic PowerPath man-  
agement optimized for multisource, low power systems.  
At no load, the LTC3106 draws only 1.6µA while creating  
an output voltage up to 5V from either input source.  
n
Dual Input Buck-Boost with Integrated PowerPath™  
Manager  
n
n
Ultralow Start-Up Voltages: 850mV Start with No  
Backup Source, 300mV with a Backup Source  
Compatible with Primary or Rechargeable Backup  
Batteries  
If the primary power source is unavailable, the LTC3106  
seamlessly switches to the backup power source. The  
LTC3106 is compatible with either rechargeable or pri-  
mary cell batteries and can trickle charge a backup battery  
whenever there is an energy surplus available. Optional  
maximum power point control ensures power transfer is  
optimizedbetweenpowersourceandload.Theoutputvolt-  
n
n
n
n
Digitally Selectable V  
and V  
OUT  
STORE  
Maximum Power Point Control  
Ultralow Quiescent Current: 1.6μA  
Regulated Output with V or V  
Above, Below  
IN  
STORE  
or Equal to the Output  
n
n
Optional Backup Battery Trickle Charger  
Shelf Mode Disconnect Function to Preserve Battery  
Shelf Life  
ageandbackupvoltage,V  
,areprogrammeddigitally,  
STORE  
reducing the required number of external components.  
Zero power Shelf Mode ensures that the backup battery  
will remain charged if left connected to the LTC3106 for  
an extended time.  
Burst Mode® Operation  
n
n
n
n
n
Accurate RUN Pin Threshold  
Power Good Output Voltage Indicator  
Selectable Peak Current Limit: 90mA/650mA  
Available in Thermally Enhanced 3mm × 4mm 16-Pin  
QFN and 20-Pin TSSOP Packages  
Additional features include an accurate turn-on voltage, a  
power good indicator for V , a user selectable 100mA  
OUT  
peak current limit setting for lower power applications,  
thermalshutdownaswellasuserselectablebackuppower  
and output voltages.  
L, LT, LTC, LTM, Linear Technology, the Linear logo, Eterna and Burst Mode are registered  
trademarks and PowerPath is a trademark of Linear Technology Corporation. All other  
trademarks are the property of their respective owners. Protected by U.S. Patents, including  
7432695 and 6366066.  
applicaTions  
n
Wireless Sensor Networks  
n
Home or Office Building Automation  
n
Energy Harvesting  
Remote Sensors  
n
Typical applicaTion  
Efficiency vs Input Voltage  
Solar Cell Input with Primary Battery Backup  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
110  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
I
= 50mA  
OUT  
10µH  
SW1  
V
CAP  
ENVSTR  
RUN  
SW2  
3.6V  
TL-5955  
PRIMARY  
BATTERY  
V
STORE  
AUX  
+
2.2µF  
10µF  
V
V
V
V
V
EFF.  
IN  
IN  
P.L.  
EFF.  
P.L.  
STR  
3.3V  
50mA  
V
IN  
V
OUT  
STR  
600mV TO 5V  
PV CELLS  
+
47µF  
LTC3106  
1M  
470µF  
1µF  
PGOOD  
PGOOD  
V
MPP  
CC  
V
CC  
PRI  
ILIMSEL  
GND  
0.01µF  
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
3106 TA01a  
INPUT VOLTAGE (V)  
LTC3106 TA01b  
3106f  
1
For more information www.linear.com/LTC3106  
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