LM25117PSQX/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: PSQFN-16

Essence: The LM25117PSQX/NOPB is a high-performance synchronous buck regulator IC used for power management applications. It offers a wide input voltage range, adjustable output voltage, and various protection features.

Packaging/Quantity: The LM25117PSQX/NOPB is available in a PSQFN-16 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: 1A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM25117PSQX/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. COMP: Compensation pin
8. VCC: Supply voltage for internal circuitry
9. AGND: Analog ground
10. BOOT: Bootstrap capacitor connection
11. LX: Inductor connection
12. BST: Boost capacitor connection
13. PGND: Power ground
14. PGND: Power ground
15. PGND: Power ground
16. PGND: Power ground

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: - Wide input voltage range allows for versatile applications - High efficiency operation reduces power loss - Adjustable output voltage provides flexibility - Protection features enhance reliability

Disadvantages: - Maximum output current limited to 1A - Higher switching frequency may require additional filtering components

Working Principles

The LM25117PSQX/NOPB operates as a synchronous buck regulator. It converts a higher input voltage to a lower output voltage using a switching mechanism. The IC controls the switching of the power MOSFETs to regulate the output voltage based on the feedback received from the FB pin. The current mode control ensures stable operation, while the protection features safeguard the IC and connected components.

Application Field Plans

The LM25117PSQX/NOPB can be used in various power management applications, including but not limited to: - Industrial equipment - Automotive systems - Telecommunications - Consumer electronics - LED lighting

Alternative Models

Some alternative models that offer similar functionality to the LM25117PSQX/NOPB are: - LM25118PSQX/NOPB - LM25119PSQX/NOPB - LM25120PSQX/NOPB

These models have comparable specifications and pin configurations, making them suitable alternatives for different design requirements.

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