LT1939IDD#TRPBF

Product Overview

Category

The LT1939IDD#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for power management applications.

Characteristics

• Integrated circuit
• Power management functionality
• Small form factor
• High efficiency
• Low power consumption

Package

The LT1939IDD#TRPBF is available in a compact and industry-standard package, such as a 16-pin dual in-line package (DIP).

Essence

The essence of the LT1939IDD#TRPBF lies in its ability to efficiently manage power in electronic devices, ensuring optimal performance and energy conservation.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of around 250 units per reel/tube.

Specifications

• Input voltage range: 4.5V to 36V
• Output voltage range: 0.8V to 24V
• Maximum output current: 3A
• Switching frequency: 500kHz
• Operating temperature range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin
4. EN: Enable pin
5. SS: Soft-start pin
6. PGND: Power ground pin
7. SW: Switch pin
8. VOUT: Output voltage pin

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• High efficiency ensures minimal power loss during operation.
• Adjustable output voltage enables flexibility in different applications.
• Enable pin provides control over device activation.
• Soft-start pin allows gradual ramp-up of output voltage, reducing stress on connected components.

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings.
• Wide input voltage range enhances versatility.
• Compact package size enables space-saving designs.
• Adjustable output voltage accommodates different requirements.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Higher cost compared to some alternative models.

Working Principles

The LT1939IDD#TRPBF operates based on a switching regulator topology. It utilizes high-frequency switching to efficiently convert the input voltage to the desired output voltage. The integrated circuit incorporates various control mechanisms, such as feedback and soft-start, to ensure stable and reliable power management.

Detailed Application Field Plans

The LT1939IDD#TRPBF finds application in a wide range of electronic devices, including but not limited to: - Mobile devices (smartphones, tablets) - Portable gaming consoles - Industrial equipment - Automotive electronics - LED lighting systems

Detailed and Complete Alternative Models

1. LT8610ABEMSE#PBF: Similar power management IC with higher maximum output current (5A).
2. LM2596S-ADJ/NOPB: Cost-effective alternative with adjustable output voltage and lower maximum output current (3A).
3. TPS54332DDAR: Switching regulator IC with similar specifications and compact package size.

These alternative models offer different trade-offs in terms of cost, performance, and features, allowing designers to choose the most suitable option for their specific application.

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