LT3507AIUHF#PBF

Product Overview

Category

The LT3507AIUHF#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 and systems to regulate and control power supply voltages efficiently.

Characteristics

• High efficiency: The LT3507AIUHF#PBF offers excellent power conversion efficiency, minimizing energy 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 comes in a small form factor package, enabling space-saving designs.
• Low quiescent current: It has a low standby current consumption, enhancing overall system efficiency.

Package and Quantity

The LT3507AIUHF#PBF is available in a compact 16-pin QFN package. It is typically sold in reels containing a specified quantity, usually around 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 45V
• Output Voltage Range: 1.24V to 38V
• Maximum Output Current: 2A
• Switching Frequency: Adjustable up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3507AIUHF#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. VCC: Supply voltage for internal circuitry
6. SS: Soft-start capacitor connection
7. PGND: Power ground connection
8. SYNC: Synchronization input for external clock
9. VOUT: Output voltage pin
10. EN: Enable pin for turning the IC on/off
11. RT: Timing resistor connection for setting switching frequency
12. SS/TRK: Soft-start/tracking capacitor connection
13. BST: Boost capacitor connection
14. COMP: Compensation pin for stability control
15. AGND: Analog ground connection
16. PG: Power good indicator output

Functional Features

• 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 losses and enhances overall energy efficiency.
• Internal compensation circuitry simplifies external component requirements.
• Soft-start feature prevents excessive inrush current during startup.
• Synchronization input allows synchronization with an external clock signal.

Advantages and Disadvantages

Advantages

• High efficiency operation reduces power dissipation and extends battery life.
• Compact package size enables space-saving designs.
• Wide input voltage range provides versatility in different applications.
• Internal compensation circuitry simplifies design complexity.
• Soft-start feature prevents voltage spikes during startup.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires careful consideration of external components for optimal performance.
• Higher cost compared to some alternative models.

Working Principles

The LT3507AIUHF#PBF operates as a step-down (buck) switching regulator. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The input voltage is stepped down to the desired output voltage by controlling the duty cycle of the internal power switch. This switching action, along with the feedback mechanism, ensures stable and efficient voltage regulation.

Application Field Plans

The LT3507AIUHF#PBF finds application in various fields, including but not limited to: - Portable electronic devices such as smartphones, tablets, and portable media players. - Automotive electronics for power management in vehicles. - Industrial equipment and machinery requiring efficient power regulation. - Renewable energy systems like solar panels and wind turbines. - Telecommunications infrastructure for voltage regulation in network equipment.

Alternative Models

For those seeking alternative options, the following models offer similar functionality: - LT3507A: Similar specifications and features with minor differences. - LT3508: Higher maximum output current capability. - LT3509: Lower quiescent current and wider input voltage range.

These alternative models can be considered based on specific application requirements and design constraints.

In conclusion, the LT3507AIUHF#PBF is a versatile integrated circuit designed for efficient power management applications. With its wide input voltage range, high efficiency, and compact package, it offers advantages in various fields. However, designers should consider alternative models based on specific needs and constraints.