LT3518EFE#TRPBF

Product Overview

Category

LT3518EFE#TRPBF belongs to the category of integrated circuits (ICs).

Use

It is commonly used in various electronic devices and systems for power management applications.

Characteristics

• High efficiency
• Wide input voltage range
• Adjustable output voltage
• Current mode control
• Internal compensation
• Low shutdown current

Package

LT3518EFE#TRPBF is available in a small 16-pin TSSOP package.

Essence

The essence of LT3518EFE#TRPBF lies in its ability to efficiently regulate power supply voltages in electronic devices, ensuring stable and reliable operation.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 100V
• Output Voltage Range: 0.8V to 60V
• Switching Frequency: Up to 1MHz
• Maximum Output Current: 3A
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. SS: Soft-start pin for gradual startup
6. RT: Timing resistor pin for switching frequency adjustment
7. SYNC: Synchronization pin for external clock synchronization
8. VCC: Supply voltage pin for internal circuitry
9. SW: Switch node pin for connecting the inductor
10. BST: Boost pin for driving the external MOSFET
11. PGND: Power ground pin
12. EN/UVLO: Enable/Undervoltage lockout pin
13. VREF: Reference voltage pin for internal circuitry
14. SS/TRK: Soft-start/Tracking pin for startup control
15. ITH: Current sense threshold pin
16. NC: No connection pin

Functional Features

• High efficiency power conversion
• Wide input voltage range for versatile applications
• Adjustable output voltage to meet specific requirements
• Current mode control for improved stability and transient response
• Internal compensation simplifies design and reduces external components
• Low shutdown current for power-saving operation

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation and longer battery life.
• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage provides flexibility in different applications.
• Current mode control enhances stability and transient response.
• Internal compensation simplifies the design process and reduces component count.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Operating temperature range may restrict usage in extreme environments.
• Requires careful consideration of thermal management due to potential heat dissipation.

Working Principles

LT3518EFE#TRPBF operates based on a current mode control architecture. It regulates the output voltage by adjusting the duty cycle of the internal switch, which controls the energy transfer from the input to the output. The feedback loop continuously monitors the output voltage and adjusts the duty cycle accordingly to maintain the desired voltage level.

Detailed Application Field Plans

LT3518EFE#TRPBF finds applications in various fields, including but not limited to: - Industrial automation systems - Automotive electronics - Telecommunications equipment - LED lighting systems - Portable electronic devices - Power supply modules

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LT3518EFE#TRPBF are: - LT3517EFE#TRPBF - LT3519EFE#TRPBF - LT3516EFE#TRPBF - LT3515EFE#TRPBF

These models offer similar functionality and characteristics, providing options for different design requirements.

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