LT3507AHFE#PBF

Product Overview

Category

The LT3507AHFE#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 voltage levels efficiently.

Characteristics

• High efficiency: The LT3507AHFE#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.
• Low quiescent current: The IC has low power consumption when in standby mode, enhancing energy efficiency.
• Compact package: It comes in a small form factor package, enabling space-saving designs.

Package and Quantity

The LT3507AHFE#PBF is available in a compact 20-pin TSSOP package. It is typically 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: 3A
• Switching Frequency: Adjustable up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3507AHFE#PBF features a 20-pin TSSOP package with the following pin configuration:

1. VIN: Input Voltage
2. SW: Switch Node Connection
3. GND: Ground
4. FB: Feedback Voltage Input
5. SS: Soft-Start Capacitor Connection
6. VCC: Supply Voltage for Internal Circuitry
7. SYNC: External Clock Synchronization Input
8. RT/CLKOUT: Oscillator Resistor or Clock Output
9. CLKIN: Oscillator Clock Input
10. AGND: Analog Ground
11. PGND: Power Ground
12. VOUT: Output Voltage
13. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Control
14. EN: Enable Pin
15. MODE: Mode Selection Pin
16. BST: Bootstrap Capacitor Connection
17. SW: Switch Node Connection
18. GND: Ground
19. FB: Feedback Voltage Input
20. VIN: Input Voltage

Functional Features

• Wide input voltage range allows for versatile applications.
• Adjustable switching frequency enables optimization for different operating conditions.
• Integrated soft-start feature prevents excessive inrush current during startup.
• Synchronization capability allows for synchronization with an external clock source.
• Built-in undervoltage lockout (UVLO) protection ensures safe operation under low voltage conditions.

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption and heat generation.
• Wide input voltage range provides flexibility in various power supply designs.
• Compact package size facilitates space-constrained applications.
• Adjustable switching frequency allows for optimization of efficiency and component size.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires additional external components for proper operation.
• Higher cost compared to non-integrated voltage regulators.

Working Principles

The LT3507AHFE#PBF operates as a step-down (buck) voltage regulator. It utilizes a switching mechanism to efficiently convert higher input voltages to lower output voltages. The IC employs a pulse-width modulation (PWM) control scheme to regulate the output voltage accurately. By rapidly switching the internal power MOSFET, it controls the energy transfer from the input to the output, maintaining a stable output voltage.

Detailed Application Field Plans

The LT3507AHFE#PBF finds applications in various fields, including but not limited to: - Battery-powered devices - Industrial automation systems - Automotive electronics - Telecommunications equipment - Portable consumer electronics

Detailed and Complete Alternative Models

1. LT3507A: Similar to LT3507AHFE#PBF but with a different package option (e.g., DFN, SOIC).
2. LT3508: Higher output current capability (up to 4A) for more demanding applications.
3. LT3509: Lower input voltage range (down to 1.8V) suitable for specific low-power designs.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 550 words