LM25116MH/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: PowerPAD™ HTSSOP-20

Essence: The LM25116MH/NOPB is a high-performance integrated circuit designed for power management applications. It offers efficient power conversion with a wide input voltage range and adjustable output voltage.

Packaging/Quantity: The LM25116MH/NOPB is available in a PowerPAD™ HTSSOP-20 package. The quantity per package may vary depending on the supplier.

Specifications

The LM25116MH/NOPB has the following specifications:

• Input Voltage Range: 4.5V to 42V
• Output Voltage Range: 0.8V to 37V
• Maximum Output Current: 1.5A
• Switching Frequency: Up to 2MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LM25116MH/NOPB has a 20-pin HTSSOP package with the following pin configuration:

1. VIN: Input voltage
2. PGND: Power ground
3. SW: Switch node connection
4. FB: Feedback voltage
5. COMP: Compensation pin
6. SS/TR: Soft-start/tracking pin
7. EN: Enable pin
8. VCC: Supply voltage
9. AGND: Analog ground
10. SYNC: Synchronization pin
11. RT/CLK: Timing resistor/clock synchronization pin
12. SS/TR: Soft-start/tracking pin
13. VSENSE: Current sense voltage
14. BST: Bootstrap capacitor connection
15. PGND: Power ground
16. SW: Switch node connection
17. FB: Feedback voltage
18. COMP: Compensation pin
19. SS/TR: Soft-start/tracking pin
20. EN: Enable pin

Functional Features

The LM25116MH/NOPB offers the following functional features:

1. Wide Input Voltage Range: The IC can handle input voltages ranging from 4.5V to 42V, making it suitable for various power supply applications.
2. Adjustable Output Voltage: The output voltage can be adjusted within a range of 0.8V to 37V, providing flexibility in different system requirements.
3. High Efficiency: With efficiency up to 95%, the LM25116MH/NOPB minimizes power losses and maximizes energy conversion.
4. Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
5. Thermal Shutdown Protection: It includes thermal shutdown protection, preventing damage due to excessive heat.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - High efficiency reduces power losses - Overcurrent and thermal shutdown protection enhance reliability

Disadvantages: - Limited maximum output current (1.5A) - Higher switching frequency may require additional noise filtering

Working Principles

The LM25116MH/NOPB operates as a buck converter, converting a higher input voltage to a lower output voltage. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage. The feedback loop continuously adjusts the duty cycle of the switching transistor to maintain the desired output voltage.

When the input voltage exceeds the set threshold, the IC activates the internal power switch, allowing energy to flow through the inductor. The inductor stores energy during the on-time and releases it to the output during the off-time. This process regulates the output voltage.

Detailed Application Field Plans

The LM25116MH/NOPB is suitable for various power management applications, including but not limited to:

1. Industrial Power Supplies: The IC can be used in industrial power supplies to efficiently convert high input voltages to lower voltages required by different equipment.
2. Automotive Electronics: It finds application in automotive electronics, such as infotainment systems and lighting modules, where efficient power conversion is crucial.
3. Telecommunications: The LM25116MH/NOPB can be utilized in telecommunications equipment, ensuring stable and efficient power supply for network infrastructure.
4. Renewable Energy Systems: It can be integrated into renewable energy systems, such as solar or wind power converters, to optimize energy conversion efficiency.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM25116MH/NOPB are:

1. LM25117MH/NOPB
2. LM25118MH/NOPB
3. LM25119MH/NOPB
4. LM25120MH/NOPB

These models share comparable specifications and features,