LTC3789EGN#TRPBF

Product Overview

Category

LTC3789EGN#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• High efficiency
• Wide input voltage range
• Adjustable output voltage
• Current mode control
• Synchronous rectification
• Programmable soft-start
• Overvoltage protection
• Undervoltage lockout

Package

LTC3789EGN#TRPBF is available in a 28-pin SSOP package.

Essence

The essence of LTC3789EGN#TRPBF lies in its ability to efficiently regulate and convert power from one voltage level to another.

Packaging/Quantity

This product is typically sold in reels, with each reel containing a specific quantity of LTC3789EGN#TRPBF ICs.

Specifications

• Input Voltage Range: 4.5V to 38V
• Output Voltage Range: 0.8V to 38V
• Maximum Output Current: 20A
• Switching Frequency: Up to 1MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for loop stability
5. VCC: Supply voltage pin for internal circuitry
6. PGND: Power ground pin
7. SW: Switching node pin
8. BOOT: Bootstrap capacitor connection pin
9. SS/TR: Soft-start/Tracking pin
10. SYNC: Synchronization pin for multiple ICs
11. RT/CLKOUT: External resistor connection for frequency setting or clock output
12. CLKIN: Clock input pin
13. SS/TR: Soft-start/Tracking pin (duplicate)
14. VCC: Supply voltage pin for internal circuitry (duplicate)
15. PGND: Power ground pin (duplicate)
16. SW: Switching node pin (duplicate)
17. FB: Feedback pin for output voltage regulation (duplicate)
18. COMP: Compensation pin for loop stability (duplicate)
19. GND: Ground pin (duplicate)
20. VIN: Input voltage pin (duplicate)
21. CLKIN: Clock input pin (duplicate)
22. RT/CLKOUT: External resistor connection for frequency setting or clock output (duplicate)
23. SYNC: Synchronization pin for multiple ICs (duplicate)
24. BOOT: Bootstrap capacitor connection pin (duplicate)
25. SS/TR: Soft-start/Tracking pin (duplicate)
26. VCC: Supply voltage pin for internal circuitry (duplicate)
27. PGND: Power ground pin (duplicate)
28. SW: Switching node pin (duplicate)

Functional Features

1. High Efficiency: LTC3789EGN#TRPBF offers high efficiency power conversion, minimizing energy losses.
2. Wide Input Voltage Range: The product supports a wide range of input voltages, making it versatile for various applications.
3. Adjustable Output Voltage: The output voltage can be easily adjusted to meet specific requirements.
4. Current Mode Control: The IC utilizes current mode control for improved stability and response.
5. Synchronous Rectification: Synchronous rectification enhances efficiency by reducing power dissipation.
6. Programmable Soft-Start: Soft-start functionality allows for controlled startup and prevents excessive inrush current.
7. Overvoltage Protection: The product incorporates overvoltage protection to safeguard connected devices.
8. Undervoltage Lockout: Undervoltage lockout ensures proper operation within specified voltage limits.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Adjustable output voltage
• Current mode control for stability
• Synchronous rectification for improved efficiency
• Programmable soft-start for controlled startup
• Overvoltage protection for device safety
• Undervoltage lockout for proper operation

Disadvantages

• Limited maximum output current (20A)

Working Principles

LTC3789EGN#TRPBF operates based on a switching regulator topology. It utilizes a combination of high-frequency switching and feedback control to regulate the output voltage. The input voltage is converted to a high-frequency AC signal, which is then rectified and filtered to obtain the desired DC output voltage. The IC continuously monitors the output voltage and adjusts the duty cycle of the switching signal to maintain the desired output voltage level.

Detailed Application Field Plans

LTC3789EGN#TRPBF finds applications in various fields, including: 1. Industrial power supplies 2. Automotive electronics 3. Telecommunications equipment 4. Renewable energy systems 5. Battery charging systems 6. LED lighting 7. Consumer electronics

Detailed and Complete