LTC3108EGN-1#PBF Linear Technology, LTC3108EGN-1#PBF Datasheet

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... Automatic Metering n Building Automation n Predictive Maintenance n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical applicaTion Wireless Remote Sensor Application Powered From a Peltier Cell 1nF ...

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... LEAD FREE FINISH TAPE AND REEL LTC3108EDE-1#PBF LTC3108EDE-1#TRPBF LTC3108IDE-1#PBF LTC3108IDE-1#TRPBF LTC3108EGN-1#PBF LTC3108EGN-1#TRPBF LTC3108IGN-1#PBF LTC3108IGN-1#TRPBF Consult LTC Marketing for parts specified for other fixed output voltages or wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: ...

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T PARAMETER Output Voltage V Quiescent Current OUT VAUX Quiescent Current LDO Output Voltage LDO Load Regulation LDO Line Regulation LDO Dropout Voltage LDO Current Limit V Current Limit OUT VSTORE ...

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LTC3108-1 Typical perForMance characTerisTics 0V OUT 1000 1:50 RATIO 4.7n 1:100 RATIO 1:20 RATIO 10n 100 100 V (mV and ...

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Typical perForMance characTerisTics and Source Resistance, VOUT IN 1:50 Ratio 10000 C1 = 4.7nF 1000 100 10 0 200 300 400 0 100 V OPEN-CIRCUIT (mV and TEG Size, VOUT 1:100 Ratio 10000 ...

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LTC3108-1 Typical perForMance characTerisTics Start-Up Voltage Sequencing V = 50mV IN 1:100 RATIO TRANSFORMER C = 220µF OUT CSTORE = 470µ 2.2µF LDO 10sec/DIV V Ripple OUT 30µA LOAD C = 220µF OUT 20mV/ DIV 100ms/DIV Enable Input ...

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FuncTions (DFN/SSOP) VAUX (Pin 1/Pin 2): Output of the Internal Rectifier Cir- cuit and V for the IC. Bypass VAUX with at least 1µ capacitance. An active shunt regulator clamps VAUX to 5.25V (typical). VSTORE (Pin 2/Pin ...

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LTC3108-1 block DiagraM C1 1:100 0.5 VAUX 1µF operaTion (Refer to the Block Diagram) The LTC3108-1 is designed to use a small external step-up transformer to create an ultralow input voltage ...

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Oscillator The LTC3108-1 utilizes a MOSFET switch to form a resonant step-up oscillator using an external step-up transformer and a small coupling capacitor. This allows it to boost input voltages as low as 20mV high enough to provide multiple ...

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LTC3108-1 operaTion In a typical application, a storage capacitor (typically a few hundred microfarads) is connected to V VAUX exceeds 2.5V, the V capacitor will be allowed to OUT charge up to its regulated voltage. The current available to charge ...

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Figure 1. Output Voltage Sequencing with V VSTORE (V) PGD (V) V (V) OUT VLDO (V) VAUX ( ...

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LTC3108-1 applicaTions inForMaTion Introduction The LTC3108-1 is designed to gather energy from very low input voltage sources and convert it to usable output voltages to power microprocessors, wireless transmitters and analog sensors. Such applications typically require much more peak power, ...

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Peltier cell is referred thermoelectric generator (TEG). The low voltage capability of the LTC3108-1 design allows it to operate from a TEG with temperature differentials as low as 1°C, making it ideal ...

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LTC3108-1 applicaTions inForMaTion Thermopile Generator Thermopile generators (also called powerpile generators) are made number of series-connected thermo- couples enclosed in a metal tube. They are commonly used in gas burner applications to generate a DC output of ...

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C1 Capacitor The charge pump capacitor that is connected from the transformer’s secondary winding to the C1 pin has an ef- fect on converter input resistance and maximum output current capability. Generally, a minimum value of 1nF is ...

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LTC3108-1 applicaTions inForMaTion at times when the input power may be lost. Note that this capacitor can charge all the way to 5.25V (regardless of the settings for ensure that the holdup capacitor OUT has a working ...

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Design Example 1 This design example will explain how to calculate the necessary storage capacitor value for V load applications, such as a wireless sensor/transmit- ter. In these types of applications, the load is very small for a ...

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LTC3108-1 applicaTions inForMaTion If there were 50µA of charge current available and 5µA of load the time for V to reach regulation after OUT OUT the initial application of power would be 11.35 seconds. Design Example 2 ...

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Typical applicaTions Supercapacitor Charger and LDO Powered by a Solar Cell (Uses External Charge Pump Rectifiers) 0.022µ SOLAR 220µF 330pF CELL* – 499k * 2 " DIAMETER MONOCRYSTALLINE CELL LIGHT LEVEL ≥ 900 LUX T1: COILCRAFT ...

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LTC3108-1 Typical applicaTions + – R > 100 / PIEZO - 60Hz 0 DC Input Energy Harvester and Power Manager > 100 / V IN 5.25V C1 VSTORE ...

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Typical applicaTions Low Profile (1.5mm) Step-Up Converter/Harvester Using 1:10 Transformer 1:10 150mV TO 600mV C IN T1: COILCRAFT LPR4012-202LML *C LOWERS START-UP VOLTAGE RES TO 135mV TYPICAL OUTPUT CAN SUPPORT A 20mA, 10ms LOAD PULSE EVERY 0.4s ...

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LTC3108-1 package DescripTion 3.60 0.05 2.20 0.05 1.70 0.05 0.25 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (NOTE 6) 0.200 REF NOTE: 1. DRAWING PROPOSED TO BE ...

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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

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... Fixed to 1.8V, 2.5V, 3.3V, 3.6V 0.95µA; OUT(MIN 0.8V to Adj, 3.3V Fixed, 5V Fixed; MAX OUT(MIN 0.8V to Adj, 3.3V Fixed, 5V Fixed; MAX OUT(MIN) = 40V ; I = 8.5µA; I < 1µA; OUT(MIN) MAX 0410 • PRINTED IN USA  LINEAR TECHNOLOGY CORPORATION 2010 <1µA; 31081f ...