LTC3789IGN#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Wide Input Voltage Range - Synchronous Buck-Boost DC/DC Converter - Adjustable Output Voltage - Programmable Soft-Start - Fault Protection Features

Package: 16-Lead SSOP

Essence: The LTC3789IGN#PBF is a versatile integrated circuit designed for power management applications. It offers high efficiency and a wide input voltage range, making it suitable for various power conversion tasks.

Packaging/Quantity: The LTC3789IGN#PBF is available in a 16-Lead SSOP package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4V to 38V
• Output Voltage Range: -0.5V to 60V
• Maximum Output Current: Up to 4A
• Switching Frequency: Up to 550kHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3789IGN#PBF features a 16-pin configuration. The pinout diagram is as follows:

Pin 1: VIN Pin 2: GND Pin 3: SW Pin 4: FB Pin 5: VOUT Pin 6: SS Pin 7: SYNC Pin 8: RT Pin 9: VCC Pin 10: PGND Pin 11: ITH Pin 12: MODE Pin 13: SS/TRK Pin 14: COMP Pin 15: EXTVCC Pin 16: NC

Functional Features

• Synchronous Buck-Boost DC/DC Conversion: Allows the LTC3789IGN#PBF to regulate the output voltage efficiently, even when the input voltage is higher or lower than the desired output voltage.
• Adjustable Output Voltage: The output voltage can be programmed within a wide range, making it suitable for various applications.
• Programmable Soft-Start: Enables gradual ramp-up of the output voltage, reducing inrush current and improving system reliability.
• Fault Protection Features: The LTC3789IGN#PBF incorporates various protection mechanisms, including overvoltage protection, overcurrent protection, and thermal shutdown.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Versatile buck-boost conversion capability - Programmable soft-start feature - Comprehensive fault protection mechanisms

Disadvantages: - Limited maximum output current (up to 4A)

Working Principles

The LTC3789IGN#PBF operates as a synchronous buck-boost DC/DC converter. It utilizes a combination of high-side and low-side MOSFETs to regulate the output voltage efficiently. By adjusting the duty cycle of the switching waveform, the IC can step up or step down the input voltage to maintain a stable output voltage.

Detailed Application Field Plans

The LTC3789IGN#PBF finds applications in various fields, including: 1. Battery-powered devices 2. Automotive electronics 3. Industrial equipment 4. Telecommunications systems 5. Renewable energy systems

In battery-powered devices, the LTC3789IGN#PBF can be used to efficiently manage power from different types of batteries, extending the device's runtime. In automotive electronics, it enables efficient power conversion for various subsystems, such as infotainment systems and lighting modules. In industrial equipment, the IC can be utilized for power management in motor control circuits and sensor interfaces. Telecommunications systems benefit from its ability to handle a wide input voltage range and provide stable power to different components. Lastly, in renewable energy systems, the LTC3789IGN#PBF can be employed for efficient power conversion from solar panels or wind turbines.

Detailed and Complete Alternative Models

1. LT8390: Synchronous Buck-Boost DC/DC Converter with Higher Output Current Capability
2. LTC3112: Synchronous Buck-Boost DC/DC Converter with Integrated MPPT Functionality
3. LT8705: Synchronous 4-Switch Buck-Boost DC/DC Converter with Wide Input Voltage Range

These alternative models offer similar functionality to the LTC3789IGN#PBF but may have different specifications or additional features that cater to specific application requirements.

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