LT3501EFE#PBF

Product Overview

Category

The LT3501EFE#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used for voltage regulation in various electronic devices and systems.

Characteristics

• High efficiency: The LT3501EFE#PBF offers high efficiency, making it suitable for power-sensitive applications.
• Wide input voltage range: It can handle a wide range of input voltages, allowing flexibility in different power supply scenarios.
• Low dropout voltage: The device has a low dropout voltage, ensuring stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable output voltage: The output voltage can be adjusted according to the specific requirements of the application.
• Compact package: The LT3501EFE#PBF comes in a compact package, making it suitable for space-constrained designs.
• RoHS compliant: This product meets the Restriction of Hazardous Substances (RoHS) directive, ensuring environmental friendliness.

Package and Quantity

The LT3501EFE#PBF is available in a 16-pin TSSOP (Thin Shrink Small Outline Package) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Input Voltage Range: 2.5V to 45V
• Output Voltage Range: 1.24V to 40V
• Maximum Output Current: 3A
• Dropout Voltage: 300mV
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 80µA

Pin Configuration

The LT3501EFE#PBF has 16 pins arranged as follows:

Pin 1: VIN Pin 2: SW Pin 3: SW Pin 4: GND Pin 5: FB Pin 6: VOUT Pin 7: VOUT Pin 8: VOUT Pin 9: VOUT Pin 10: VOUT Pin 11: VOUT Pin 12: VOUT Pin 13: VOUT Pin 14: VOUT Pin 15: VOUT Pin 16: VOUT

Functional Features

• Wide input voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility in meeting specific requirements.
• High efficiency ensures optimal power utilization.
• Overcurrent and thermal protection safeguards the device and connected components.
• Soft-start feature prevents excessive inrush current during startup.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range enables compatibility with various power sources.
• Compact package size facilitates space-constrained designs.
• Adjustable output voltage allows customization for different applications.
• Overcurrent and thermal protection enhance reliability.

Disadvantages

• Dropout voltage of 300mV may limit its use in low-power applications.
• Limited maximum output current of 3A may not be suitable for high-power applications.

Working Principles

The LT3501EFE#PBF is a step-down switching regulator that uses a synchronous rectification topology. It operates by converting a higher input voltage to a lower output voltage with high efficiency. The device utilizes pulse-width modulation (PWM) techniques to regulate the output voltage based on feedback from the FB pin.

During operation, the internal control circuitry adjusts the duty cycle of the switching transistor (SW pin) to maintain the desired output voltage. This regulation process ensures a stable output voltage even when the input voltage or load conditions vary.

Detailed Application Field Plans

The LT3501EFE#PBF finds application in various fields, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Battery-powered devices - Telecommunications systems - Portable consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3501EFE#PBF include: - LM2576-ADJ - LT1084CT-5 - TPS5430DDAR - ADP2302ARDZ

These alternatives can be considered based on specific requirements and design constraints.

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