LT8471HFE#PBF

Product Overview

Category

LT8471HFE#PBF belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for power management applications.

Characteristics

• High efficiency
• Wide input voltage range
• Low quiescent current
• Adjustable output voltage
• Synchronous rectification
• Internal compensation
• Fault protection features

Package

LT8471HFE#PBF is available in a small and compact 20-pin TSSOP package.

Essence

The essence of LT8471HFE#PBF lies in its ability to efficiently manage power in various electronic devices.

Packaging/Quantity

This IC is typically sold in reels, with each reel containing a quantity of 250 units.

Specifications

• Input Voltage Range: 2.8V to 80V
• Output Voltage Range: 0.8V to 60V
• Quiescent Current: 40µA
• Switching Frequency: Up to 2MHz
• Maximum Duty Cycle: 90%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin
4. COMP: Compensation pin
5. SS: Soft-start pin
6. SYNC/MODE: Synchronization/mode selection pin
7. VCC: Supply voltage pin
8. SW: Switch node pin
9. PGND: Power ground pin
10. BST: Bootstrap pin
11. LX: Inductor connection pin
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss.
• Adjustable output voltage provides flexibility in different scenarios.
• Synchronous rectification improves overall efficiency.
• Internal compensation simplifies design and reduces external components.
• Fault protection features safeguard the IC and connected devices.

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings.
• Wide input voltage range enables compatibility with various power sources.
• Compact package size saves board space.
• Internal compensation reduces external component count.
• Fault protection features enhance system reliability.

Disadvantages

• Limited maximum duty cycle may restrict certain applications.
• Higher cost compared to non-integrated solutions.
• Requires careful thermal management due to high power dissipation.

Working Principles

LT8471HFE#PBF operates as a synchronous buck-boost DC/DC converter. It regulates the output voltage by adjusting the duty cycle of the internal switches. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly. The synchronization/mode selection pin (SYNC/MODE) allows for synchronization with an external clock or selection of different operating modes.

Detailed Application Field Plans

LT8471HFE#PBF finds applications in various fields, including: - Automotive electronics - Industrial automation - Telecommunications - Renewable energy systems - Portable electronic devices

Detailed and Complete Alternative Models

• LT8470HFE#PBF
• LT8472HFE#PBF
• LT8473HFE#PBF
• LT8474HFE#PBF
• LT8475HFE#PBF

These alternative models offer similar functionality and can be considered as alternatives to LT8471HFE#PBF.

In conclusion, LT8471HFE#PBF is a highly efficient integrated circuit designed for power management applications. Its wide input voltage range, adjustable output voltage, and fault protection features make it suitable for various fields such as automotive electronics, industrial automation, and telecommunications. While it has advantages in terms of efficiency and reliability, careful thermal management and higher cost should be considered. Alternative models are available for those seeking similar functionality.