LTC3890HUH-2#PBF

Product Overview

Category

The LTC3890HUH-2#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices and systems to efficiently regulate and control power supply voltages.

Characteristics

• High efficiency power conversion
• Wide input voltage range
• Adjustable output voltage
• Current mode control
• Integrated protection features

Package

The LTC3890HUH-2#PBF is available in a compact and industry-standard 28-pin QFN package.

Essence

The essence of the LTC3890HUH-2#PBF lies in its ability to provide efficient and reliable power management solutions for a wide range of applications.

Packaging/Quantity

The LTC3890HUH-2#PBF is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 24V
• Maximum Output Current: 20A
• Switching Frequency: Up to 1MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3890HUH-2#PBF features a 28-pin QFN package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground reference
3. VOUT: Output voltage
4. FB: Feedback pin for output voltage regulation
5. SS: Soft-start capacitor connection
6. SYNC: External synchronization input
7. RT/CLKOUT: Resistor-capacitor timing network or clock output
8. CLKIN: Clock input
9. PGND: Power ground
10. VCC: Internal regulator output
11. SS/TR/UVLO: Soft-start, tracking, and undervoltage lockout control
12. EN/UVLO: Enable and undervoltage lockout control
13. MODE: Operation mode selection
14. ITH: Current sense threshold setting
15. SW: Switch node connection 16-28. NC: No connection

Functional Features

1. High Efficiency: The LTC3890HUH-2#PBF incorporates advanced power conversion techniques to achieve high efficiency, minimizing power losses.
2. Wide Input Voltage Range: The IC can handle a wide range of input voltages, making it suitable for various applications.
3. Adjustable Output Voltage: The output voltage can be easily adjusted to meet specific requirements.
4. Current Mode Control: The IC utilizes current mode control for improved stability and response.
5. Integrated Protection Features: The LTC3890HUH-2#PBF includes built-in protection mechanisms such as overcurrent protection, overvoltage protection, and thermal shutdown.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Adjustable output voltage
• Integrated protection features
• Compact package size

Disadvantages

• Limited maximum output current (20A)

Working Principles

The LTC3890HUH-2#PBF operates based on a switching regulator topology. It uses a combination of high-frequency switching and control techniques to efficiently convert the input voltage to the desired output voltage. The IC employs a current mode control scheme to regulate the output voltage and provide stable operation under varying load conditions.

Detailed Application Field Plans

The LTC3890HUH-2#PBF finds applications in various fields, including but not limited to: - Industrial automation - Telecommunications - Automotive electronics - Power distribution systems - Renewable energy systems

Detailed and Complete Alternative Models

1. LTC3890HUH-1#PBF: Similar to LTC3890HUH-2#PBF, but with a different pin configuration.
2. LTC3890IUH-2#PBF: Similar specifications and features, but in a different package (QFN-32).

These alternative models offer similar functionality and can be considered as substitutes for the LTC3890HUH-2#PBF depending on specific requirements.

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