LM25115MT

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency synchronous buck regulator - Wide input voltage range - Adjustable output voltage - Current mode control - Overcurrent protection - Thermal shutdown protection

Package: PowerPAD™ 10-Lead MSOP

Essence: The LM25115MT is a high-performance synchronous buck regulator designed for power management applications. It offers high efficiency and a wide input voltage range, making it suitable for various electronic devices.

Packaging/Quantity: The LM25115MT is available in a PowerPAD™ 10-Lead MSOP package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 42V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 3A
• Switching Frequency: Up to 2.2MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM25115MT has the following pin configuration:

1. VIN: Input voltage
2. PGND: Power ground
3. SW: Switch node connection
4. FB: Feedback voltage input
5. EN: Enable pin
6. SS/TR: Soft-start/tracking pin
7. VCC: Supply voltage for internal circuitry
8. COMP: Compensation pin
9. PG: Power good indicator
10. BOOT: Bootstrap capacitor connection

Functional Features

• High efficiency operation
• Adjustable output voltage
• Current mode control for improved stability
• Overcurrent protection to prevent damage
• Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Current mode control enhances stability - Overcurrent and thermal shutdown protection ensure safety

Disadvantages: - May require additional external components for certain applications - Higher cost compared to non-synchronous buck regulators

Working Principles

The LM25115MT operates as a synchronous buck regulator, converting a higher input voltage to a lower output voltage. It utilizes a current mode control scheme to regulate the output voltage. The integrated circuit includes a high-side N-channel MOSFET and a low-side P-channel MOSFET, which work together to efficiently step down the input voltage.

Detailed Application Field Plans

The LM25115MT can be used in various power management applications, including but not limited to: - Industrial equipment - Automotive systems - Telecommunications devices - Consumer electronics - LED lighting

Alternative Models

Here are some alternative models that offer similar functionality to the LM25115MT: - LM25116MT: Similar specifications and features, but with a different pin configuration - LM25117MT: Higher maximum output current of 5A, suitable for more demanding applications - LM25118MT: Lower maximum output current of 2A, suitable for lower power applications

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

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