LTC3862HFE-1

Product Overview

Category

The LTC3862HFE-1 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used in power management systems to regulate and control the flow of electrical power. It offers efficient and reliable power conversion capabilities.

Characteristics

• High efficiency: The LTC3862HFE-1 is known for its high efficiency, ensuring minimal power loss during operation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for various power supply applications.
• Fast transient response: The IC provides a fast and accurate response to sudden changes in load conditions, maintaining stable output voltages.
• Protection features: It incorporates several protection mechanisms such as overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe and reliable operation.

Package

The LTC3862HFE-1 is available in a compact and industry-standard 20-pin TSSOP package. This package offers good thermal performance and ease of integration into different circuit designs.

Essence

The essence of the LTC3862HFE-1 lies in its ability to efficiently manage and regulate power in a wide range of applications. It simplifies power management tasks and enhances overall system performance.

Packaging/Quantity

The LTC3862HFE-1 is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4V to 60V
• Output Voltage Range: 0.8V to 24V
• Maximum Output Current: 10A
• Switching Frequency: Up to 1MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3862HFE-1 features a 20-pin TSSOP package with the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. FB: Feedback pin for output voltage regulation
4. SS: Soft-start pin for controlling the startup behavior
5. SYNC: Synchronization input pin for external clock synchronization
6. VCC: Supply voltage pin for internal control circuitry
7. PGND: Power ground pin
8. SW: Switching node pin for connecting the power switch
9. BST: Boost capacitor connection pin
10. COMP: Compensation pin for loop stability
11. EN/UVLO: Enable and undervoltage lockout control pin
12. RT: Timing resistor connection pin for setting switching frequency
13. AGND: Analog ground pin
14. SS/TRK: Soft-start tracking pin for sequencing multiple LTC3862HFE-1 devices
15. OCSET: Overcurrent protection threshold setting pin
16. OVSET: Overvoltage protection threshold setting pin
17. VOUT: Output voltage pin
18. ITH: Current sense threshold setting pin
19. PGOOD: Power good indicator pin
20. NC: No connection pin

Functional Features

The LTC3862HFE-1 offers several functional features that enhance its performance and usability:

1. Wide Input Voltage Range: The IC can handle a wide range of input voltages, making it suitable for various power supply applications.
2. High Efficiency Operation: With its advanced architecture and optimized design, the LTC3862HFE-1 achieves high efficiency, minimizing power loss during operation.
3. Fast Transient Response: The IC responds quickly to sudden changes in load conditions, ensuring stable output voltages even under dynamic operating conditions.
4. Protection Mechanisms: The LTC3862HFE-1 incorporates built-in protection mechanisms such as overvoltage protection, overcurrent protection, and thermal shutdown, safeguarding the system from potential damage.
5. Flexible Control Options: It provides various control options, including soft-start, synchronization, and enable/undervoltage lockout control, allowing for easy integration into different power management systems.

Advantages and Disadvantages

Advantages

• High efficiency operation reduces power loss and improves overall system performance.
• Wide input voltage range enables versatile application possibilities.
• Fast transient response ensures stable output voltages under dynamic load conditions.
• Built-in protection mechanisms enhance system reliability and safety.
• Flexible control options provide ease of integration into different power management systems.

Disadvantages

• The 20-pin TSSOP package may limit space-constrained designs.
• Limited maximum output current (10A) may not be suitable for high-power applications.

Working Principles

The LTC3862HFE-1 operates based on a switching regulator topology. It utilizes a high-frequency switching transistor to convert the input voltage to the desired output voltage. The IC employs a feedback mechanism to regulate the output voltage and maintain it within a specified range. By controlling the duty cycle