LTC3105EMS#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Voltage Boost Converter
• Package: MSOP-10
• Essence: Energy Harvesting Power Supply
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 225mV to 5V
• Output Voltage Range: 2.35V to 5.25V
• Maximum Output Current: 300mA
• Efficiency: Up to 90%
• Quiescent Current: 950nA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. VOUT: Output Voltage
5. FB: Feedback Pin
6. SS: Soft-Start Pin
7. LX: Inductor Connection
8. PG: Power Good Indicator
9. VDD: Internal Regulator Output
10. VREF: Reference Voltage Output

Functional Features

• Wide input voltage range allows for energy harvesting from various sources
• Low quiescent current enables efficient power management in low-power applications
• High efficiency conversion ensures maximum utilization of harvested energy
• Soft-start feature prevents excessive inrush current during startup
• Power good indicator provides status indication of the output voltage

Advantages and Disadvantages

Advantages: - Wide input voltage range enables versatile energy harvesting options - Low quiescent current minimizes power consumption in standby mode - High efficiency conversion maximizes energy utilization - Small package size allows for space-constrained designs

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Operating temperature range may restrict usage in extreme environments

Working Principles

The LTC3105EMS#TRPBF is a low voltage boost converter designed for energy harvesting applications. It operates by converting low input voltages, ranging from 225mV to 5V, into higher output voltages between 2.35V and 5.25V. The integrated circuit utilizes an internal regulator to provide a stable reference voltage and efficiently manages power transfer.

The device incorporates a feedback pin (FB) that regulates the output voltage based on the desired setpoint. The soft-start pin (SS) ensures a controlled startup by gradually ramping up the output voltage, preventing excessive inrush current. The power good indicator (PG) provides a signal indicating when the output voltage has reached the desired level.

Detailed Application Field Plans

The LTC3105EMS#TRPBF finds applications in various fields where energy harvesting is required. Some potential application areas include:

1. Wireless Sensor Networks: The low voltage boost converter can be used to power wireless sensor nodes that rely on harvested energy from ambient sources such as solar, thermal, or vibration.

2. IoT Devices: Energy harvesting from environmental sources can power IoT devices, eliminating the need for battery replacement or external power supply.

3. Wearable Electronics: The LTC3105EMS#TRPBF can be utilized in wearable devices to convert energy from body heat or motion into usable power for sensors, displays, or communication modules.

4. Remote Monitoring Systems: Energy harvesting from sources like wind or hydroelectric power can be harnessed to power remote monitoring systems, enabling long-term operation without the need for frequent maintenance.

Detailed and Complete Alternative Models

1. LTC3106: Similar to LTC3105EMS#TRPBF, but with higher maximum output current of 450mA.
2. LTC3107: Boost converter with additional features like MPPT (Maximum Power Point Tracking) for improved energy harvesting efficiency.
3. LTC3108: Integrated energy harvesting power supply with multiple input sources and higher output current capability.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

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