LT8390EFE#PBF

Product Overview

Category

LT8390EFE#PBF belongs to the category of integrated circuits (ICs).

Use

The LT8390EFE#PBF is commonly used as a step-down DC/DC controller.

Characteristics

• High efficiency
• Wide input voltage range
• Adjustable output voltage
• Synchronous rectification
• Programmable soft-start
• Overvoltage protection
• Undervoltage lockout
• Thermal shutdown

Package

LT8390EFE#PBF is available in a 28-lead TSSOP package.

Essence

The essence of LT8390EFE#PBF lies in its ability to efficiently regulate and convert high input voltages to lower output voltages.

Packaging/Quantity

LT8390EFE#PBF is typically packaged in reels, with 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 24V
• Maximum Switching Frequency: 2MHz
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 50µA

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. SYNC/SS: Synchronization or soft-start control pin
5. VCC: Supply voltage pin
6. PGND: Power ground pin
7. SW: Switch node pin
8. SS/TR: Soft-start or tracking control pin
9. COMP: Compensation pin for stability control
10. BST: Bootstrap capacitor connection pin
11. RT/CLKOUT: Resistor timing or clock output pin
12. CLKIN: Clock input pin
13. CLKOUT: Clock output pin
14. VCCSENSE: Supply voltage sensing pin
15. SS/TR2: Soft-start or tracking control pin
16. MODE: Mode selection pin
17. ITH: Current limit setting pin
18. VFB: Feedback voltage sense pin
19. AGND: Analog ground pin
20. RT/CLKIN: Resistor timing or clock input pin
21. CLKOUT: Clock output pin
22. CLKIN: Clock input pin
23. CLKOUT: Clock output pin
24. VCCSENSE: Supply voltage sensing pin
25. SS/TR2: Soft-start or tracking control pin
26. MODE: Mode selection pin
27. ITH: Current limit setting pin
28. VFB: Feedback voltage sense pin

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency conversion minimizes power loss.
• Synchronous rectification improves overall performance.
• Programmable soft-start feature prevents excessive inrush current.
• Overvoltage protection safeguards the system from voltage spikes.
• Undervoltage lockout ensures proper operation under low voltage conditions.
• Thermal shutdown protects the device from overheating.

Advantages and Disadvantages

Advantages

• High efficiency conversion
• Wide input voltage range
• Programmable soft-start
• Overvoltage protection
• Undervoltage lockout
• Thermal shutdown

Disadvantages

• Limited output voltage range (0.8V to 24V)

Working Principles

The LT8390EFE#PBF operates as a step-down DC/DC controller by regulating the input voltage to a lower, adjustable output voltage. It utilizes synchronous rectification and programmable soft-start features to improve efficiency and prevent excessive inrush current. The device also incorporates overvoltage protection, undervoltage lockout, and thermal shutdown mechanisms to ensure safe and reliable operation.

Detailed Application Field Plans

The LT8390EFE#PBF is commonly used in various applications, including but not limited to: - Industrial power supplies - Automotive electronics - Telecommunications equipment - Battery-powered systems - LED lighting

Detailed and Complete Alternative Models

1. LT8390EFE#TRPBF
2. LT8390IFE#PBF
3. LT8390IFE#TRPBF
4. LT8390HFE#PBF
5. LT8390HFE#TRPBF

These alternative models offer similar functionality and characteristics to the LT8390EFE#PBF, providing flexibility for different design requirements.

In conclusion, the LT8390EFE#PBF is a highly efficient step-down DC/DC controller with a wide input voltage range and adjustable output voltage. Its features, such as synchronous rectification, programmable soft-start, and various protection mechanisms, make it suitable for a wide range of applications. While it has a limited output voltage range, there are alternative models available to cater to different design needs