LM25119QPSQX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM25119QPSQX/NOPB is a high-performance synchronous buck regulator designed for use in various power management applications. It provides efficient voltage conversion and regulation, making it suitable for a wide range of electronic devices.

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

Package: The LM25119QPSQX/NOPB is available in a compact and industry-standard 16-pin WQFN package, which ensures easy integration into circuit designs.

Essence: The essence of the LM25119QPSQX/NOPB lies in its ability to efficiently convert and regulate voltage, providing stable power supply to electronic devices.

Packaging/Quantity: The LM25119QPSQX/NOPB is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 42V
• Output Voltage Range: 0.8V to 20V
• Maximum Output Current: 3A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LM25119QPSQX/NOPB features the following pin configuration:

1. VIN: Input voltage pin
2. PGND: Power ground pin
3. SW: Switch node connection pin
4. BOOT: Bootstrap capacitor connection pin
5. SS/TR: Soft-start/tracking pin
6. FB: Feedback voltage pin
7. EN: Enable pin
8. VCC: Supply voltage pin
9. AGND: Analog ground pin
10. COMP: Compensation pin
11. SS/TR: Soft-start/tracking pin
12. PGND: Power ground pin
13. SW: Switch node connection pin
14. BOOT: Bootstrap capacitor connection pin
15. FB: Feedback voltage pin
16. VIN: Input voltage pin

Functional Features

• High efficiency synchronous buck regulator
• Adjustable output voltage through feedback control
• Current limit protection for overload conditions
• Thermal shutdown protection to prevent overheating
• Soft-start and tracking functionality for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility in design - Current limit protection ensures device safety - Thermal shutdown protection prevents damage from overheating

Disadvantages: - Limited maximum output current of 3A may not be suitable for high-power applications - Higher switching frequency may require additional noise filtering measures

Working Principles

The LM25119QPSQX/NOPB operates as a synchronous buck regulator, utilizing a high-frequency switching technique to efficiently convert the input voltage to the desired output voltage. It employs a control loop that adjusts the duty cycle of the internal switches to regulate the output voltage based on the feedback received.

Detailed Application Field Plans

The LM25119QPSQX/NOPB can be applied in various fields, including but not limited to: - Consumer electronics - Industrial automation - Automotive systems - Telecommunications - Power supplies

Alternative Models

For alternative options, the following models can be considered: - LM25118QPSQX/NOPB - LM25120QPSQX/NOPB - LM25121QPSQX/NOPB - LM25122QPSQX/NOPB

These models offer similar functionalities and characteristics, providing alternatives for different design requirements.

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