LTC3109EUF#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - Low Voltage Boost Converter - Energy Harvesting Applications - Ultra-Low Quiescent Current - Wide Input Voltage Range - Small Package Size

Package: 3mm x 3mm DFN (Dual Flat No-Lead)

Essence: The LTC3109EUF#TRPBF is a low voltage boost converter designed for energy harvesting applications. It provides an efficient way to extract and manage energy from various sources such as solar panels, thermoelectric generators, or piezoelectric transducers.

Packaging/Quantity: The LTC3109EUF#TRPBF is available in a 16-pin 3mm x 3mm DFN package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 225mV to 5V
• Output Voltage Range: 1.8V to 5.25V
• Maximum Output Current: 400mA
• Quiescent Current: 950nA
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC3109EUF#TRPBF has the following pin configuration:

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| | | LTC3109EUF#TRPBF | |_______________________________________| | | | 1 2 3 4 | | VIN GND SW VOUT | | | | 5 6 7 8 | | EN FB VREF LBIAS | | | | 9 10 11 12 | | LBO VDD GND VOUT2 | | | | 13 14 15 16 | | VOUT3 GND GND GND | |_______________________________________| ```

Functional Features

• Low voltage operation allows energy harvesting from various sources
• Ultra-low quiescent current minimizes power consumption during idle periods
• Wide input voltage range enables compatibility with different energy sources
• Small package size facilitates integration into space-constrained applications
• Multiple output voltages (VOUT, VOUT2, VOUT3) provide flexibility for powering different components

Advantages and Disadvantages

Advantages: - Efficient energy harvesting from low voltage sources - Ultra-low power consumption during idle periods - Compact size for easy integration - Multiple output voltages for versatility

Disadvantages: - Limited maximum output current (400mA) - Requires external components for complete power management solution

Working Principles

The LTC3109EUF#TRPBF operates as a boost converter, stepping up the input voltage to a higher output voltage. It utilizes an internal low-loss full-wave bridge rectifier to convert AC or pulsating DC input sources into a usable DC voltage. The integrated power manager controls the charging of an external energy storage element, such as a capacitor or rechargeable battery, and regulates the output voltage.

During operation, the LTC3109EUF#TRPBF continuously monitors the input voltage and adjusts the duty cycle of the internal switch to maintain a stable output voltage. Its ultra-low quiescent current ensures minimal power consumption when the load is disconnected or in standby mode.

Detailed Application Field Plans

The LTC3109EUF#TRPBF is designed for a wide range of energy harvesting applications, including but not limited to: - Solar-powered systems - Wireless sensor networks - Wearable devices - Internet of Things (IoT) devices - Environmental monitoring systems

Its ability to efficiently extract and manage energy from low voltage sources makes it suitable for applications where traditional power sources are not readily available or practical.

Detailed and Complete Alternative Models

• LTC3108: Similar boost converter with lower input voltage range (20mV to 400mV)
• LTC3105: Boost converter with higher maximum output current (1A) and additional features like MPPT (Maximum Power Point Tracking)

These alternative models offer different specifications and features that may better suit specific application requirements.