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sensor:ltc3108_1 [2026/02/12 22:28] – vamsansensor:ltc3108_1 [2026/02/12 22:43] (current) – [Typical application] vamsan
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 ====== LamaPLC: LTC3108-1 Ultra Low Voltage Boost Converter Power Manager Breakout Development Board ====== ====== LamaPLC: LTC3108-1 Ultra Low Voltage Boost Converter Power Manager Breakout Development Board ======
 {{ :sensor:ltc3108-1_1.png?180|LTC3108-1 Ultra Low Voltage Boost Converter Power Manager Breakout Development Board}} {{ :sensor:ltc3108-1_1.png?180|LTC3108-1 Ultra Low Voltage Boost Converter Power Manager Breakout Development Board}}
-The LTC3108-1 is a compact, ultralow-voltage step-up DC/DC converter and power manager from Analog Devices, engineered to harvest energy from sources as low as 20 mV, including thermoelectric generators (TEGs) and small solar cells.+The LTC3108-1 is a compact, ultralow-voltage step-up DC/DC converter and power manager from Analog Devices, engineered to harvest energy from sources as low as 20 mV, including **thermoelectric generator**s (TEGs) and small **solar cell**s.
  
 **Key Features and Specifications** **Key Features and Specifications**
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   * **Ultralow Start-Up Voltage:** Operates from input voltages as low as 20mV (with a 1:100 transformer ratio), making it suitable for very low-power sources.   * **Ultralow Start-Up Voltage:** Operates from input voltages as low as 20mV (with a 1:100 transformer ratio), making it suitable for very low-power sources.
   * **Power Management:** Provides a complete solution for wireless sensing and data acquisition, including surplus energy management to a storage capacitor or rechargeable battery.   * **Power Management:** Provides a complete solution for wireless sensing and data acquisition, including surplus energy management to a storage capacitor or rechargeable battery.
-  * Selectable Main Output (VOUT): The main output is programmable to one of four fixed voltages using external pins **(VS1 and VS2):** 2.5V, 3V, 3.7V, or 4.5V. This differs from the standard LTC3108, which offers 2.35V, 3.3V, 4.1V, or 5V options.+  * **Selectable Main Output (VOUT):** The main output is programmable to one of four fixed voltages using external pins (VS1 and VS2): 2.5V, 3V, 3.7V, or 4.5V. This differs from the standard LTC3108, which offers 2.35V, 3.3V, 4.1V, or 5V options.
   * **Integrated LDO:** Includes a 2.2V LDO (low dropout regulator) capable of supplying up to 3mA to power an external microprocessor.   * **Integrated LDO:** Includes a 2.2V LDO (low dropout regulator) capable of supplying up to 3mA to power an external microprocessor.
   * **Additional Outputs:** Features a second logic-controlled output (VOUT2) and a reserve energy output (VSTORE) for backup power.   * **Additional Outputs:** Features a second logic-controlled output (VOUT2) and a reserve energy output (VSTORE) for backup power.
   * **Power Good Indicator:** A PGOOD indicator pin signals when the main output voltage is within regulation.   * **Power Good Indicator:** A PGOOD indicator pin signals when the main output voltage is within regulation.
   * **Extremely Low Quiescent Current:** Ensures fast charging of the output reservoir capacitor.   * **Extremely Low Quiescent Current:** Ensures fast charging of the output reservoir capacitor.
-==== Arduino wiring ==== 
-  * SCL: A5 
-  * GND: GND 
-  * SDA: A4 
-  * Vdd: 5V 
-==== Arduino code ==== 
  
-<code c> +More information: https://www.digikey.tw/htmldatasheets/production/1595402/0/0/1/ltc3108-1.html
-sample +
-</code>+
  
-==== Example codes ==== +|{{:sensor:ltc3108-1_1.png?180|LTC3108-1}}|{{:sensor:ltc3108-1_2.png?180|LTC3108-1}}|{{:sensor:ltc3108-1_3.png?180|LTC3108-1}}| 
-none+==== Pinout ==== 
 +^Pin^Name^Function Description| 
 +^SW|Drain connection for the internal N-channel MOSFET switch. Connects to the primary of the step-up transformer.| 
 +^C1, C2|Connections for the external charge pump capacitors used to boost the voltage.| 
 +^VAUX|Output of the internal rectifier. A bypass capacitor (typically 1 µF) is required for the chip to function.| 
 +^VSTORE|Output for a large storage capacitor or battery to hold excess harvested energy for use when the input source is unavailable.| 
 +^VOUT|Main regulated output. Voltage is selectable (2.5V, 3V, 3.7V, or 4.5V) via VS1 and VS2 pins.| 
 +^VOUT2|A second switched output controlled by the VOUT2_EN pin. Useful for powering sensors only when needed.| 
 +^VLDO|2.2V low dropout (LDO) regulator output, providing up to 3mA for a microprocessor.| 
 +^PGD|Power Good Indicator. Logic is high when VOUT is in regulation.| 
 +^VS1, VS2|Output voltage select pins. These determine the regulation level for the main VOUT.| 
 +^GND|Signal and power ground. For the DFN package, the exposed pad must also be soldered to ground.|
  
-{{tag>BMP280 AHT20 Adafruit temperature humidity pressure sensor arduino code}}+**Package Pin Mapping** 
 +  * 12-Lead DFN: SW (1), VAUX (2), VSTORE (3), VOUT (4), VOUT2 (5), VOUT2_EN (6), PGD (7), VS1 (8), VS2 (9), C2 (10), C1 (11), GND (12). 
 +  * 16-Lead SSOP: Pins follow a similar sequence but include additional GND pins (1, 8, 9, 16).  
 + 
 +==== Typical application ==== 
 +{{:sensor:ltc3108-1_4.png|LTC3108-1}} 
 + 
 +==== Peltier-Powered Energy Harvester for Remote Sensor Applications ==== 
 +{{:sensor:ltc3108-1_5.png|LTC3108-1}} 
 + 
 + 
 +{{tag>LTC3108-1 Voltage Boost Converter power_manager step-up DC/DC_converter thermoelectric_generator solar_cell}}
  
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