LT8391IFE#TRPBF

Product Overview

Category

LT8391IFE#TRPBF 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 network

Package

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

Essence

The essence of LT8391IFE#TRPBF lies in its ability to efficiently manage power in various electronic devices and systems.

Packaging/Quantity

This IC is typically packaged in reels, with each reel containing a specific quantity of LT8391IFE#TRPBF units.

Specifications

• Input Voltage Range: 4V to 60V
• Output Voltage Range: 0.8V to VIN
• Switching Frequency: Up to 2MHz
• Maximum Duty Cycle: 90%
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. SS: Soft-start pin for controlled startup
6. RT/CLK: External resistor or clock input for switching frequency control
7. SYNC/MODE: Synchronization or mode selection pin
8. SW: Switch node connection for power transfer
9. PGND: Power ground reference
10. LX: Inductor connection for power transfer
11. BST: Boost capacitor connection for high-side MOSFET gate drive
12. INTVCC: Internal voltage regulator output
13. VCCSENSE: Input voltage sense pin
14. VOUTSENSE: Output voltage sense pin
15. VINSENSE: Input current sense pin
16. CLKOUT: Clock output for synchronization

Functional Features

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

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range enables compatibility with various power sources.
• Compact package size saves board space.
• Internal compensation network simplifies circuit design.

Disadvantages

• Limited maximum duty cycle may restrict certain applications.
• Higher switching frequency may introduce additional noise.

Working Principles

LT8391IFE#TRPBF operates on the principle of current mode control, where the inductor current is sensed and regulated to achieve desired output voltage regulation. The IC utilizes a synchronous rectification scheme to minimize power losses during switching transitions. It also incorporates an internal compensation network, eliminating the need for external components for stability control.

Detailed Application Field Plans

LT8391IFE#TRPBF finds applications in various fields, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - LED lighting systems - Battery charging circuits - Distributed power systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LT8391IFE#TRPBF are: - LT8390: Similar specifications and features, but with a different pin configuration. - LT8392: Higher input voltage range and additional features such as adjustable soft-start and programmable undervoltage lockout. - LT8393: Lower input voltage range and higher switching frequency capability.

These alternative models can be considered based on specific application requirements and design constraints.

Note: The content provided above is a sample structure for an encyclopedia entry and may not reflect actual specifications or details of LT8391IFE#TRPBF. Please refer to the official datasheet for accurate information.