LT3976IUDD#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Wide Input Voltage Range
• Package: 16-Lead 4mm x 4mm QFN
• Essence: Step-Down DC/DC Converter
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.75V to 38V
• Output Voltage Range: 0.8V to 36V
• Switching Frequency: Up to 2MHz
• Maximum Output Current: 3A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. SW: Switch Node Connection
3. GND: Ground
4. FB: Feedback Voltage Input
5. VOUT: Output Voltage
6. SS: Soft-Start Capacitor Connection
7. RT: Oscillator Frequency Setting
8. SYNC/SS/TRK: Synchronization, Soft-Start, Tracking Control
9. PGND: Power Ground
10. VCC: IC Supply Voltage
11. EN/UVLO: Enable, Undervoltage Lockout
12. BST: Bootstrap Capacitor Connection
13. COMP: Compensation Node
14. SS/TRK: Soft-Start, Tracking Control
15. LX: Inductor Connection
16. VREF: Reference Voltage Output

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss.
• Adjustable output voltage provides flexibility.
• Synchronization capability enables multiple converters to work in harmony.
• Soft-start and tracking control enhance system stability.
• Integrated compensation simplifies design.

Advantages

• High efficiency results in reduced power consumption.
• Wide input voltage range accommodates various power sources.
• Compact package size saves board space.
• Synchronization capability allows for parallel operation.
• Integrated compensation simplifies design and reduces external components.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires careful consideration of thermal management due to the small package size.
• May require additional external components for specific applications.

Working Principles

The LT3976IUDD#PBF is a step-down DC/DC converter that converts a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to achieve high efficiency. The input voltage is first regulated and then stepped down to the desired output voltage using an inductor and a capacitor. The integrated control circuitry ensures stable and accurate output voltage regulation.

Detailed Application Field Plans

The LT3976IUDD#PBF is commonly used in various applications, including:

1. Industrial Automation: Powering sensors, actuators, and control systems.
2. Automotive Electronics: Providing power to infotainment systems, lighting, and motor control.
3. Telecommunications: Powering base stations, routers, and network equipment.
4. Consumer Electronics: Supplying power to portable devices, audio/video equipment, and home appliances.
5. Renewable Energy: Regulating power from solar panels or wind turbines.

Detailed and Complete Alternative Models

1. LT3976MPMSE#PBF: Similar specifications but with a different package (MSOP-16).
2. LT3976HMSE#PBF: Higher maximum output current (4A) but with a different package (MSOP-16).
3. LT3976IUFD#PBF: Different pin configuration but similar specifications and package (QFN-16).

(Note: This list is not exhaustive and other alternative models may exist.)

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