LT8391IFE#PBF

Product Overview

Category

LT8391IFE#PBF belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• High efficiency
• Wide input voltage range
• Adjustable output voltage
• Current mode control
• Synchronous rectification
• Internal compensation

Package

LT8391IFE#PBF is available in a small and compact 16-lead TSSOP package.

Essence

The essence of LT8391IFE#PBF lies in its ability to efficiently regulate power in various applications.

Packaging/Quantity

This IC is typically sold in reels, with each reel containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4V to 60V
• Output Voltage Range: 0.8V to VIN
• Maximum Switching Frequency: 2MHz
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 20µA

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. SS: Soft-start pin for controlled startup
7. SYNC/MODE: Pin for synchronization or mode selection
8. SW: Switch node pin for power transfer
9. PGND: Power ground pin
10. BST: Boost capacitor connection pin
11. LX: Inductor connection pin
12. VOUT: Output voltage pin
13. NC: No connection pin
14. NC: No connection pin
15. NC: No connection pin
16. NC: No connection pin

Functional Features

• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility in power regulation
• Current mode control ensures stable and efficient operation
• Synchronous rectification improves overall efficiency
• Internal compensation simplifies design and reduces external components

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Wide input voltage range accommodates various power sources
• Adjustable output voltage meets different system requirements
• Compact package size enables space-saving designs
• Synchronous rectification enhances overall efficiency

Disadvantages

• Limited maximum switching frequency may not be suitable for certain high-frequency applications
• Requires careful consideration of loop stability due to internal compensation

Working Principles

LT8391IFE#PBF operates based on a current mode control architecture. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The IC utilizes synchronous rectification to minimize power losses during switching transitions. Internal compensation simplifies the design process by eliminating the need for external compensation components.

Detailed Application Field Plans

LT8391IFE#PBF finds application in various fields, including but not limited to: - Industrial power supplies - Automotive electronics - LED lighting systems - Battery charging circuits - Distributed power architectures

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LT8391IFE#PBF are: - LT8390IFE#PBF - LT8392IFE#PBF - LT8393IFE#PBF - LT8394IFE#PBF

These models offer similar functionality and characteristics, providing options for different design requirements.

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