LM5115MTC/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Voltage Synchronous Buck Controller
• Package: 16-TSSOP
• Essence: The LM5115MTC/NOPB is a high voltage synchronous buck controller designed for use in power management applications.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 100V
• Output Voltage Range: 0.8V to 90% of VIN
• Switching Frequency: Adjustable up to 1MHz
• Operating Temperature Range: -40°C to +125°C
• Features: Adjustable soft-start, cycle-by-cycle current limit, thermal shutdown protection, etc.

Pin Configuration

The LM5115MTC/NOPB has a 16-pin TSSOP package with the following pin configuration:

1. VCC
2. GND
3. FB
4. COMP
5. SS/TR
6. RT/CLK
7. SYNC
8. EN
9. PGND
10. BOOT
11. SW
12. SW
13. SW
14. SW
15. SW
16. SW

Functional Features

• Wide Input Voltage Range: The LM5115MTC/NOPB can handle input voltages ranging from 4.5V to 100V, making it suitable for various power management applications.
• High Efficiency: With its synchronous buck topology, the controller achieves high efficiency by minimizing power losses during conversion.
• Adjustable Switching Frequency: The switching frequency can be adjusted up to 1MHz, allowing flexibility in design and optimization for different applications.
• Protection Features: The controller includes features like adjustable soft-start, cycle-by-cycle current limit, and thermal shutdown protection to ensure safe operation.

Advantages and Disadvantages

Advantages: - Wide input voltage range - High efficiency - Adjustable switching frequency - Protection features for safe operation

Disadvantages: - Limited to power management applications - Requires external components for a complete power supply solution

Working Principles

The LM5115MTC/NOPB operates as a synchronous buck controller, converting a higher input voltage to a lower output voltage. It uses pulse-width modulation (PWM) to control the duty cycle of the switching transistor, regulating the output voltage. By utilizing synchronous rectification, it minimizes power losses during conversion, resulting in high efficiency.

Application Field Plans

The LM5115MTC/NOPB can be used in various power management applications, including but not limited to: - Industrial power supplies - Telecom infrastructure - Automotive electronics - Renewable energy systems

Alternative Models

For those seeking alternative options, the following models can be considered: - LM5116MTC/NOPB: Similar to LM5115MTC/NOPB, but with additional features. - LM5122MTC/NOPB: Dual-channel synchronous buck controller for higher power applications. - LM25066AQMHE/NOPB: Synchronous buck controller with integrated MOSFET drivers.

These alternatives provide different specifications and features to cater to specific application requirements.

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