LT3975IMSE#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High efficiency, low quiescent current, wide input voltage range
• Package: MSOP-16E
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 60V
• Output Voltage Range: 1.2V to 50V
• Maximum Output Current: 3A
• Quiescent Current: 20µA
• Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3975IMSE#TRPBF has a total of 16 pins arranged as follows:

1. VIN: Input voltage pin
2. SW: Switch node connection for the internal power switch
3. GND: Ground reference pin
4. FB: Feedback pin for output voltage regulation
5. COMP: Compensation pin for loop stability
6. SS/TR: Soft-start and tracking control pin
7. VCC: Supply voltage pin for internal circuitry
8. PGND: Power ground reference pin
9. SYNC: Synchronization pin for external clock input
10. RT: Timing resistor pin for setting switching frequency
11. SS/TR: Soft-start and tracking control pin
12. VFB: Feedback voltage sense pin
13. VOUT: Output voltage pin
14. VOUT: Output voltage pin
15. VOUT: Output voltage pin
16. VOUT: Output voltage pin

Functional Features

• Wide input voltage range allows for versatile applications
• High efficiency ensures minimal power loss
• Low quiescent current enables energy-saving operation
• Internal power switch simplifies circuit design
• Soft-start and tracking control for smooth power-up sequences
• Synchronization capability for noise reduction

Advantages and Disadvantages

Advantages: - Wide input voltage range provides flexibility in various applications - High efficiency reduces power dissipation and improves overall system performance - Low quiescent current extends battery life in portable devices - Compact MSOP-16E package allows for space-saving designs - Soft-start and tracking control ensure reliable power-up sequences

Disadvantages: - Limited maximum output current of 3A may not be suitable for high-power applications - Requires external synchronization for noise reduction, adding complexity to the circuit design

Working Principles

The LT3975IMSE#TRPBF is a voltage regulator IC that converts an input voltage within the range of 2.7V to 60V into a regulated output voltage between 1.2V and 50V. It achieves this by utilizing a high-efficiency internal power switch and a feedback loop to maintain the desired output voltage.

The device operates at a switching frequency of 1MHz, allowing for fast response times and efficient power conversion. The low quiescent current of 20µA ensures minimal power loss during standby or light load conditions, making it suitable for battery-powered applications.

The LT3975IMSE#TRPBF also features soft-start and tracking control, which enable gradual power-up sequences and accurate voltage tracking. This enhances system reliability and protects sensitive components from sudden voltage surges.

Detailed Application Field Plans

The LT3975IMSE#TRPBF is widely used in various applications, including but not limited to:

1. Industrial Automation: Power supply for control systems, motor drives, and sensors.
2. Automotive Electronics: Voltage regulation for automotive lighting, infotainment systems, and engine control units.
3. Telecommunications: Power management for base stations, routers, and network switches.
4. Consumer Electronics: Voltage regulation for smartphones, tablets, and portable audio devices.
5. Renewable Energy: Power conversion for solar panels, wind turbines, and energy storage systems.

Detailed and Complete Alternative Models

1. LT3975HMSE#TRPBF: Similar to LT3975IMSE#TRPBF but with a higher maximum output current of 5A.
2. LT3975EMSE#TRPBF: Similar to LT3975IMSE#TRPBF but with an extended operating temperature range of -55°C to 150°C.
3. LT3975IMSE-5#TRPBF: Similar to LT3975IMSE#TRPBF but with a fixed output voltage of 5V.

These alternative models offer variations in output current, temperature range, and fixed output voltage options, providing flexibility to meet specific application requirements.

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