LTC7851IUHH#PBF

Product Overview

Category

The LTC7851IUHH#PBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• High efficiency
• Wide input voltage range
• Low quiescent current
• Adjustable output voltage
• Overcurrent protection

Package

The LTC7851IUHH#PBF is available in a compact and durable package, ensuring easy integration into various electronic systems.

Essence

The essence of this product lies in its ability to efficiently regulate and control power in electronic devices.

Packaging/Quantity

The LTC7851IUHH#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 55V
• Quiescent Current: 50µA
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC7851IUHH#PBF features a total of 32 pins, each serving a specific function. The pin configuration is as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. EN: Enable pin
5. FB: Feedback pin
6. COMP: Compensation pin
7. SS: Soft-start pin
8. PGND: Power ground pin
9. SYNC: Synchronization pin
10. CLKOUT: Clock output pin
11. CLKIN: Clock input pin
12. MODE: Mode selection pin
13. ITH: Current limit threshold pin
14. RT: Timing resistor pin
15. SS/TR: Soft-start/Tracking pin
16. VCC: Supply voltage pin 17-32. Reserved pins

Functional Features

The LTC7851IUHH#PBF offers several functional features, including:

• High efficiency power conversion
• Wide input voltage range for versatile applications
• Adjustable output voltage to meet specific requirements
• Overcurrent protection to safeguard connected devices
• Synchronization capability for multi-phase operation
• Soft-start and tracking functions for controlled power-up sequences

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption
• Wide input voltage range allows compatibility with various power sources
• Adjustable output voltage provides flexibility in system design
• Overcurrent protection ensures the safety of connected devices
• Synchronization capability enables efficient multi-phase operation

Disadvantages

• Limited availability of alternative models from other manufacturers
• Relatively high cost compared to some competing products

Working Principles

The LTC7851IUHH#PBF operates based on a switching regulator topology. It utilizes high-frequency switching to efficiently convert the input voltage to the desired output voltage. The integrated control circuitry ensures stable and accurate regulation, while the feedback mechanism continuously adjusts the duty cycle to maintain the desired output voltage.

Detailed Application Field Plans

The LTC7851IUHH#PBF finds extensive application in various fields, including:

1. Automotive electronics: Power management in electric vehicles, battery charging systems, and automotive infotainment systems.
2. Industrial automation: Control systems, motor drives, and power supplies for industrial equipment.
3. Telecommunications: Power management in base stations, network equipment, and communication devices.
4. Renewable energy: Solar power inverters, wind turbine controllers, and energy storage systems.
5. Consumer electronics: Power supplies for laptops, gaming consoles, and home appliances.

Detailed and Complete Alternative Models

While the LTC7851IUHH#PBF is a highly capable power management IC, there are alternative models available from other manufacturers. Some notable alternatives include:

1. Texas Instruments TPS54332: Similar functionality with a lower cost.
2. Analog Devices ADP2384: Offers additional features such as adjustable soft-start and power good indicator.
3. Maxim Integrated MAX17503: High-efficiency synchronous buck converter with integrated MOSFETs.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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