LTC3589EUJ

Product Overview

Category

LTC3589EUJ belongs to the category of integrated circuits (ICs) used in power management applications.

Use

This IC is specifically designed for energy harvesting systems, where it efficiently manages and regulates power from ambient sources such as solar panels, thermoelectric generators, or piezoelectric transducers.

Characteristics

• High efficiency power conversion
• Low quiescent current
• Wide input voltage range
• Flexible output voltage options
• Compact package size
• Robust design for harsh environments

Package and Quantity

LTC3589EUJ is available in a small 20-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

The following are the key specifications of LTC3589EUJ:

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 1.8V to 3.6V
• Maximum Output Current: 100mA
• Quiescent Current: 950nA (typical)
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 90%

Pin Configuration

The pin configuration of LTC3589EUJ is as follows:

```

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| | | 1 2 3 4 5 6 7 8 9 | |_______________________________________| | | | VOUT GND VIN EN INT SDA | |_______________________________________| | | | SCL IRQ VBAT LDO NC NC | |_______________________________________| ```

Functional Features

• Energy harvesting power management
• Integrated low dropout (LDO) regulator
• Programmable output voltage
• Overvoltage and undervoltage protection
• Power good indicator
• I2C interface for configuration and monitoring

Advantages and Disadvantages

Advantages

• Efficient utilization of ambient energy sources
• Wide input voltage range allows compatibility with various energy harvesting devices
• Low quiescent current minimizes power consumption
• Compact package size enables space-constrained designs
• Robust design ensures reliable operation in harsh environments

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires additional external components for complete system integration

Working Principles

LTC3589EUJ operates by converting the variable input voltage from an energy harvesting source into a regulated output voltage. It utilizes a combination of power management techniques, including maximum power point tracking (MPPT), to optimize energy extraction from the source. The integrated LDO regulator provides a stable output voltage, which can be adjusted according to the application requirements.

Application Field Plans

LTC3589EUJ finds extensive use in various energy harvesting applications, including:

1. Wireless sensor networks
2. Wearable electronics
3. Internet of Things (IoT) devices
4. Environmental monitoring systems
5. Remote sensing and data logging

Alternative Models

For those seeking alternative options, the following ICs provide similar functionality to LTC3589EUJ:

1. LTC3108 - Energy harvesting power manager with higher output current capability.
2. BQ25570 - Ultra-low power boost converter with integrated MPPT for energy harvesting applications.
3. MAX17710 - Highly integrated energy harvesting solution with multiple power management features.

These alternatives offer different specifications and package options, allowing designers to choose the most suitable option for their specific requirements.

In conclusion, LTC3589EUJ is a versatile IC designed for efficient power management in energy harvesting systems. Its compact size, wide input voltage range, and low quiescent current make it an ideal choice for various applications in the emerging field of energy harvesting technology.

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