LT3502EDC#TRPBF

Product Overview

Category

The LT3502EDC#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 efficiently regulate and control power supply voltages.

Characteristics

• High efficiency: The LT3502EDC#TRPBF offers high power conversion efficiency, minimizing energy loss during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Compact package: The IC is available in a small form factor package, enabling space-saving designs.
• Low quiescent current: It has low power consumption when in standby or idle mode, enhancing overall system efficiency.

Package and Quantity

The LT3502EDC#TRPBF is typically packaged in a compact 8-pin DFN (Dual Flat No-Lead) package. It is commonly sold in reels containing a specific quantity, usually around 2500 units per reel.

Specifications

The following are the key specifications of the LT3502EDC#TRPBF:

• Input Voltage Range: 2.5V to 40V
• Output Voltage Range: Adjustable from 1.24V to 37V
• Maximum Output Current: 2A
• Switching Frequency: Up to 2MHz
• Quiescent Current: 80µA (typical)
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3502EDC#TRPBF features an 8-pin DFN package with the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection
3. GND: Ground reference pin
4. FB: Feedback pin for output voltage regulation
5. VOUT: Output voltage pin
6. SS: Soft-start capacitor connection
7. EN: Enable pin for turning the IC on/off
8. PGND: Power ground reference pin

Functional Features

The LT3502EDC#TRPBF offers several functional features, including:

• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage enables flexibility in meeting specific system requirements.
• High efficiency conversion minimizes power loss and maximizes energy utilization.
• Integrated soft-start function prevents excessive inrush current during startup.
• Overcurrent and overtemperature protection ensure safe operation.

Advantages and Disadvantages

Advantages

• High power conversion efficiency results in reduced energy consumption.
• Compact package size facilitates space-saving designs.
• Wide input voltage range enhances versatility in different applications.
• Integrated protection features improve system reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Higher switching frequency may introduce additional noise in sensitive circuits.

Working Principles

The LT3502EDC#TRPBF operates based on a switching regulator topology. It utilizes a combination of inductors, capacitors, and switches to efficiently convert the input voltage to the desired output voltage. The integrated control circuitry ensures stable and regulated output voltage despite variations in input voltage and load conditions.

Application Field Plans

The LT3502EDC#TRPBF finds application in various fields, including but not limited to:

1. Portable electronic devices: Used to regulate power supply voltages in smartphones, tablets, and portable media players.
2. Industrial automation: Employed in control systems, motor drives, and power supplies for efficient voltage regulation.
3. Automotive electronics: Utilized in automotive lighting, infotainment systems, and power management modules.
4. Renewable energy systems: Integrated into solar power converters and battery charging circuits for efficient power management.

Alternative Models

For those seeking alternative options, the following ICs can be considered:

1. LT3502EDC#PBF: Similar to LT3502EDC#TRPBF but packaged in a different form factor.
2. LT3503EDC#TRPBF: Offers higher maximum output current of 3A for more demanding applications.
3. LT3504EDC#TRPBF: Provides additional features such as adjustable soft-start time and synchronization capability.

These alternative models offer similar functionality and can be suitable replacements depending on specific requirements.

In conclusion, the LT3502EDC#TRPBF is an integrated circuit designed for power management applications. With its high efficiency, wide input voltage range, and compact package, it offers numerous advantages in various fields. However, it has limitations in terms of maximum output current and potential switching noise. Understanding its working principles and considering alternative models can help engineers make informed decisions when incorporating this IC into their designs.