LT3508HFE#TRPBF

Product Overview

Category

The LT3508HFE#TRPBF 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 regulate and control power supply voltages efficiently.

Characteristics

• High efficiency: The LT3508HFE#TRPBF is known for its high efficiency, which helps minimize power losses during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low quiescent current: The IC has a low quiescent current, ensuring minimal power consumption when the device is in standby or idle mode.
• Adjustable output voltage: The output voltage of the LT3508HFE#TRPBF can be easily adjusted according to the specific requirements of the application.
• Compact package: This IC is available in a compact package, allowing for space-efficient integration into electronic systems.
• RoHS compliant: The LT3508HFE#TRPBF meets the Restriction of Hazardous Substances (RoHS) directive, ensuring environmental friendliness.

Package and Quantity

The LT3508HFE#TRPBF is typically packaged in a small form factor, such as a 16-pin TSSOP (Thin Shrink Small Outline Package). It is commonly sold in reels containing a specified quantity of ICs, usually around 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 45V
• Output Voltage Range: 1.24V to 38V
• Maximum Output Current: 3A
• Switching Frequency: Up to 2MHz
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3508HFE#TRPBF features a 16-pin TSSOP package with the following pin configuration:

1. VIN: Input voltage
2. SW: Switch node connection
3. GND: Ground reference
4. FB: Feedback voltage input
5. SS: Soft-start capacitor connection
6. VCC: IC supply voltage
7. PGND: Power ground
8. SYNC: External synchronization input
9. RT/CLKOUT: Oscillator resistor or clock output
10. CLKIN: Clock input
11. EN/UVLO: Enable and undervoltage lockout control
12. MODE: Mode selection
13. VOUT: Output voltage
14. VFB: Feedback voltage output
15. COMP: Compensation node
16. BST: Boost node connection

Functional Features

• Wide input voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility in power supply design.
• High efficiency minimizes power losses and improves overall system performance.
• Integrated soft-start feature prevents excessive inrush current during startup.
• Synchronization capability enables precise timing coordination with other components.
• Overcurrent protection safeguards against excessive load currents.
• Thermal shutdown protection prevents damage due to overheating.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and longer battery life.
• Wide input voltage range makes it suitable for various power supply designs.
• Compact package allows for space-efficient integration into electronic systems.
• RoHS compliance ensures environmental friendliness.

Disadvantages

• Limited maximum output current may not be sufficient for high-power applications.
• Requires external components for proper operation, increasing system complexity.

Working Principles

The LT3508HFE#TRPBF operates based on a switching regulator topology. It utilizes a high-frequency switching transistor to regulate the output voltage. The input voltage is first converted to a high-frequency AC signal, which is then rectified and filtered to obtain the desired output voltage. The IC continuously monitors the output voltage and adjusts the switching transistor's duty cycle to maintain a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The LT3508HFE#TRPBF finds applications in various fields, including but not limited to: - Portable electronic devices: It can be used to regulate power supply voltages in smartphones, tablets, portable media players, etc. - Automotive electronics: The IC is suitable for powering automotive infotainment systems, lighting modules, and other onboard electronics. - Industrial equipment: It can be employed in industrial control systems, motor drives, and instrumentation devices. - Telecommunications: The LT3508HFE#TRPBF can be utilized in telecom infrastructure equipment, such as base stations and routers. - Renewable energy systems: It is well-suited for solar-powered systems, wind turbines, and other renewable energy applications.

Alternative Models

For those seeking alternative options, the following models provide similar functionality to the LT3508H