LTC3109IGN#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Voltage Boost Converter
• Package: 16-Lead SSOP
• Essence: Energy Harvesting Power Supply
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 225mV to 5V
• Output Voltage Range: 2.35V to 5.25V
• Maximum Output Current: 400mA
• Quiescent Current: 950nA
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. GND: Ground
3. VOUT: Output Voltage
4. EN: Enable Pin
5. FB: Feedback Pin
6. LX: Inductor Connection
7. SW: Switch Node
8. PG: Power Good Indicator

Functional Features

• Low input voltage operation enables energy harvesting from various sources
• Integrated low-loss full-wave bridge rectifier for AC or DC inputs
• Programmable output voltage with high accuracy
• Automatic maximum power point tracking (MPPT) for solar applications
• Wide input voltage range allows for versatile applications
• Power good indicator for system monitoring
• Low quiescent current for extended battery life

Advantages and Disadvantages

Advantages: - Enables energy harvesting from low voltage sources - High efficiency conversion for optimal power utilization - Compact package size for space-constrained applications - Wide operating temperature range for harsh environments - Integrated features reduce external component count

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Requires careful consideration of input voltage range compatibility

Working Principles

The LTC3109IGN#TRPBF is a low voltage boost converter designed for energy harvesting applications. It operates by converting low input voltages, as low as 225mV, into higher output voltages up to 5.25V. The integrated full-wave bridge rectifier allows for AC or DC inputs, making it suitable for various energy sources such as solar panels or thermoelectric generators.

The device incorporates an automatic maximum power point tracking (MPPT) algorithm specifically tailored for solar applications. This ensures that the converter operates at the optimal point on the solar panel's voltage-current curve, maximizing power extraction.

The LTC3109IGN#TRPBF features a programmable output voltage, allowing flexibility in powering different loads. It also includes a power good indicator, which signals when the output voltage is within the desired range, providing system monitoring capability.

Detailed Application Field Plans

1. Energy Harvesting Systems: The LTC3109IGN#TRPBF is ideal for powering wireless sensor networks, remote monitoring systems, and other low-power devices that rely on energy harvesting from ambient sources.
2. Solar-Powered Devices: With its MPPT capability, the LTC3109IGN#TRPBF can efficiently extract power from solar panels, making it suitable for solar-powered applications like outdoor weather stations or remote environmental monitoring.
3. Wearable Electronics: The low input voltage range and compact package size make this converter suitable for wearable devices that require efficient power management from energy harvesting sources, such as body heat or motion.

Detailed and Complete Alternative Models

1. LTC3108: Similar low voltage boost converter with MPPT functionality, but with a different pin configuration.
2. LTC3330: Integrated energy harvesting power supply with additional features like a shunt battery charger and a buck-boost DC/DC converter.
3. BQ25504: Ultra-low power boost converter with integrated MPPT and energy storage capabilities, specifically designed for solar energy harvesting.

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