LM25117QPSQ/NOPB

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: QFN (Quad Flat No-leads)

Essence: The LM25117QPSQ/NOPB is a high-performance synchronous buck regulator IC designed for power management applications. It offers efficient power conversion with a wide input voltage range and adjustable output voltage.

Packaging/Quantity: The LM25117QPSQ/NOPB is available in a QFN 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 2MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM25117QPSQ/NOPB 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
8. PG: Power good indicator
9. AGND: Analog ground
10. COMP: Compensation pin

Functional Features

• High efficiency power conversion
• Adjustable output voltage for flexibility
• Current mode control for stable operation
• Overcurrent protection for device safety
• Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - High efficiency results in reduced power loss - Adjustable output voltage provides flexibility for different loads - Overcurrent and thermal shutdown protection enhance device safety

Disadvantages: - Limited maximum output current of 3A may not be suitable for high-power applications - QFN package may require specialized soldering techniques

Working Principles

The LM25117QPSQ/NOPB operates as a synchronous buck regulator, converting a higher input voltage to a lower output voltage. It utilizes current mode control to regulate the output voltage and maintain stability. The IC incorporates various protection features such as overcurrent and thermal shutdown to ensure safe operation.

Application Field Plans

The LM25117QPSQ/NOPB is suitable for a wide range of power management applications, including but not limited to: - Industrial automation systems - Automotive electronics - Telecommunications equipment - Consumer electronics - LED lighting

Alternative Models

1. LM25118QPSQ/NOPB: Similar specifications with enhanced output current capability.
2. LM25116QPSQ/NOPB: Lower output current capability but with additional features like adjustable soft-start time.

These alternative models offer similar functionality to the LM25117QPSQ/NOPB and can be considered based on specific application requirements.

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