LT3800EFE#PBF

Product Overview

The LT3800EFE#PBF belongs to the category of integrated circuits and is commonly used as a high-performance step-down switching regulator. This device is known for its efficient power conversion, compact package, and versatile applications. The LT3800EFE#PBF comes in a small 28-lead TSSOP package and is designed to deliver high efficiency and low quiescent current.

Basic Information

• Category: Integrated Circuits
• Use: High-performance step-down switching regulator
• Characteristics: Efficient power conversion, compact package, versatile applications
• Package: 28-lead TSSOP
• Essence: High efficiency, low quiescent current
• Packaging/Quantity: Individual units packaged in reels or tubes

Specifications

• Input Voltage Range: 4V to 60V
• Output Voltage Range: 0.8V to 24V
• Switching Frequency: Up to 2MHz
• Maximum Duty Cycle: 95%
• Quiescent Current: 85µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. SW: Switch Node
3. GND: Ground
4. FB: Feedback
5. SYNC/MODE: Synchronization/MODE Selection
6. SS/TR/UVLO: Soft-Start/Tracking/Undervoltage Lockout
7. RT/CLKOUT: Oscillator Frequency Set/ Clock Output
8. VCC: Bias Supply Voltage
9. PGATE: Power MOSFET Gate Drive
10. AGND: Analog Ground
11. COMP: Error Amplifier Output
12. SS/TR/UVLO: Soft-Start/Tracking/Undervoltage Lockout
13. RT/CLKOUT: Oscillator Frequency Set/ Clock Output
14. VCC: Bias Supply Voltage
15. PGATE: Power MOSFET Gate Drive
16. AGND: Analog Ground
17. COMP: Error Amplifier Output
18. SS/TR/UVLO: Soft-Start/Tracking/Undervoltage Lockout
19. RT/CLKOUT: Oscillator Frequency Set/ Clock Output
20. VCC: Bias Supply Voltage
21. PGATE: Power MOSFET Gate Drive
22. AGND: Analog Ground
23. COMP: Error Amplifier Output
24. SS/TR/UVLO: Soft-Start/Tracking/Undervoltage Lockout
25. RT/CLKOUT: Oscillator Frequency Set/ Clock Output
26. VCC: Bias Supply Voltage
27. PGATE: Power MOSFET Gate Drive
28. AGND: Analog Ground

Functional Features

• High Efficiency
• Wide Input Voltage Range
• Synchronization Capability
• Adjustable Output Voltage
• Soft-Start Function
• Overcurrent Protection
• Thermal Shutdown

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation
• Wide input voltage range allows for versatile applications
• Synchronization capability for noise-sensitive applications
• Adjustable output voltage provides flexibility
• Soft-start function prevents inrush current
• Comprehensive protection features enhance reliability

Disadvantages

• Higher cost compared to standard linear regulators
• Requires careful PCB layout for optimal performance

Working Principles

The LT3800EFE#PBF operates as a step-down switching regulator by controlling the duty cycle of the internal power switch to regulate the output voltage. It utilizes a high-frequency switching architecture to achieve high efficiency and compact size. The device incorporates feedback control to maintain stable output voltage across varying load conditions.

Detailed Application Field Plans

The LT3800EFE#PBF finds extensive use in various applications such as: - Industrial Power Supplies - Automotive Electronics - Telecommunications Equipment - LED Lighting Systems - Battery-Powered Devices - Distributed Power Systems

Detailed and Complete Alternative Models

Some alternative models to the LT3800EFE#PBF include: - LT3757 - LT8610 - LT8640 - LT3970 - LT8609

In conclusion, the LT3800EFE#PBF offers high-performance power conversion capabilities with a wide range of applications, making it a valuable component in modern electronic systems.

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