LT3507IUHF#PBF

Product Overview

Category

The LT3507IUHF#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices to regulate and control power supply voltages efficiently.

Characteristics

• High efficiency: The LT3507IUHF#PBF offers high conversion efficiency, minimizing power losses 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 consumes minimal current when in standby mode, conserving energy.

Package and Quantity

The LT3507IUHF#PBF is typically packaged in a compact 16-pin QFN package. It is commonly sold in reels containing a specified quantity of ICs.

Specifications

• Input Voltage Range: 2.5V to 45V
• Output Voltage Range: 0.8V to 40V
• Maximum Output Current: 1A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3507IUHF#PBF features a 16-pin QFN package with the following pin configuration:

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

Functional Features

• Wide input voltage range allows for versatile applications.
• Integrated power switches simplify the design and reduce external component count.
• Adjustable output voltage enables customization for specific requirements.
• Soft-start function prevents excessive inrush current during startup.
• Synchronization capability allows for noise reduction and system integration.

Advantages

• High efficiency results in reduced power consumption and heat generation.
• Compact package facilitates space-constrained designs.
• Wide input voltage range provides flexibility in various power supply scenarios.
• Low quiescent current enhances energy efficiency during standby mode.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Higher switching frequency can introduce additional noise in sensitive circuits.

Working Principles

The LT3507IUHF#PBF operates as a step-down (buck) switching regulator. It utilizes pulse-width modulation (PWM) techniques to efficiently convert higher input voltages to lower output voltages. The IC incorporates internal power switches, control circuitry, and feedback mechanisms to regulate the output voltage accurately.

Application Field Plans

The LT3507IUHF#PBF finds extensive application in various fields, including: 1. Portable electronic devices: Powering smartphones, tablets, and portable audio/video players. 2. Automotive electronics: Providing regulated power for infotainment systems, lighting, and sensors. 3. Industrial equipment: Enabling efficient power management in control systems and motor drives. 4. Telecommunications: Supporting stable power supply for network infrastructure and communication devices.

Alternative Models

For similar power management applications, alternative models to consider include: - LT3507A: Offers enhanced features such as adjustable soft-start time and thermal shutdown protection. - LT3507B: Provides a wider input voltage range and higher maximum output current capability.

In conclusion, the LT3507IUHF#PBF is a highly efficient integrated circuit designed for power management applications. Its compact package, wide input voltage range, and adjustable output voltage make it suitable for various electronic devices. While it has limitations in terms of maximum output current, its advantages include high efficiency, low quiescent current, and synchronization capability. The IC finds application in portable electronics, automotive systems, industrial equipment, and telecommunications. Alternative models like LT3507A and LT3507B offer additional features and specifications to cater to specific requirements.