LT3790IFE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Wide Input Voltage Range, Multiple Output Configurations
• Package: 28-Lead TSSOP
• Essence: Power Management Controller and Switching Regulator
• Packaging/Quantity: Tube/100 pieces

Specifications

• Input Voltage Range: 3V to 60V
• Output Voltage Range: 0.8V to 60V
• Switching Frequency: Up to 1MHz
• Maximum Duty Cycle: 90%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3790IFE has a total of 28 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. VCC: Supply Voltage
3. GND: Ground
4. SS: Soft-Start
5. FB: Feedback Voltage
6. COMP: Compensation Node
7. SYNC: Synchronization Input
8. RT/CLKOUT: Oscillator Timing Resistor/Clock Output
9. CLKIN: Clock Input
10. SW: Switch Node
11. PGND: Power Ground
12. VOUT1: Output Voltage 1
13. VOUT2: Output Voltage 2
14. VOUT3: Output Voltage 3
15. VOUT4: Output Voltage 4
16. VOUT5: Output Voltage 5
17. VOUT6: Output Voltage 6
18. VOUT7: Output Voltage 7
19. VOUT8: Output Voltage 8
20. VOUT9: Output Voltage 9
21. VOUT10: Output Voltage 10
22. VOUT11: Output Voltage 11
23. VOUT12: Output Voltage 12
24. VOUT13: Output Voltage 13
25. VOUT14: Output Voltage 14
26. VOUT15: Output Voltage 15
27. VOUT16: Output Voltage 16
28. VOUT17: Output Voltage 17

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency power management controller.
• Multiple output configurations provide flexibility in design.
• Synchronization input for easy integration with other systems.
• Soft-start feature ensures smooth startup.

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption.
• Wide input voltage range enables compatibility with various power sources.
• Multiple output configurations offer flexibility in powering different components.
• Synchronization input allows for synchronization with external clock signals.
• Soft-start feature prevents excessive current during startup.

Disadvantages

• Complex pin configuration may require careful attention during circuit design.
• Limited maximum duty cycle may restrict certain applications.
• Higher cost compared to simpler power management solutions.

Working Principles

The LT3790IFE is a power management controller and switching regulator. It operates by regulating the input voltage and converting it into multiple output voltages as required by the application. The integrated circuit utilizes a high-frequency switching technique to efficiently step down or step up the voltage levels. It incorporates various control mechanisms such as feedback loops, compensation networks, and soft-start circuits to ensure stable and reliable power delivery.

Detailed Application Field Plans

The LT3790IFE finds applications in various fields, including:

1. Industrial Automation: Powering control systems, motor drives, and sensors.
2. Automotive Electronics: Providing power to infotainment systems, lighting, and electric vehicle components.
3. Telecommunications: Powering base stations, routers, and communication equipment.
4. Renewable Energy: Regulating power from solar panels, wind turbines, and energy storage systems.
5. Consumer Electronics: Powering portable devices, audio/video equipment, and home automation systems.

Detailed and Complete Alternative Models

1. LT3790AIFE: Similar to LT3790IFE with enhanced features for specific applications.
2. LT3790BIFE: Lower-cost variant with reduced functionality but suitable for simpler designs.
3. LT3790HFE: High-temperature version designed for extreme operating conditions.
4. LT3790RFE: RoHS-compliant model with lead-free packaging.

These alternative models provide options based on specific requirements, cost considerations, or environmental regulations.

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