LM5117PSQE/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance synchronous buck controller
• Package: 20-pin WQFN package
• Essence: Efficient power conversion and management
• Packaging/Quantity: Tape and reel packaging, quantity varies

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Voltage Range: 0.8V to 60V
• Switching Frequency: Up to 2MHz
• Maximum Duty Cycle: 100%
• Operating Temperature Range: -40°C to +125°C
• Features: Adjustable soft-start, adjustable current limit, thermal shutdown, etc.

Detailed Pin Configuration

The LM5117PSQE/NOPB has a total of 20 pins. The pin configuration is as follows:

1. VIN: Input voltage pin
2. BOOT: Bootstrap capacitor connection for high-side gate driver
3. PH: Phase node connection for the high-side MOSFET
4. SW: Switching node connection
5. PGND: Power ground pin
6. AGND: Analog ground pin
7. COMP: Compensation pin for loop stability
8. FB: Feedback pin for output voltage regulation
9. SS/TR: Soft-start/Tracking pin
10. EN: Enable pin for device operation
11. VCC: Supply voltage pin for internal circuitry
12. RT/CLK: External resistor or clock input for switching frequency control
13. SYNC: Synchronization input for external clock synchronization
14. SS/TR: Soft-start/Tracking pin
15. PGATE: Gate drive output for the high-side MOSFET
16. PGND: Power ground pin
17. PGND: Power ground pin
18. PGND: Power ground pin
19. PGND: Power ground pin
20. VCC: Supply voltage pin for internal circuitry

Functional Features

• High efficiency power conversion
• Wide input voltage range
• Adjustable soft-start for controlled startup
• Adjustable current limit for protection
• Thermal shutdown for overtemperature protection
• Synchronization capability with external clock

Advantages and Disadvantages

Advantages

• High-performance synchronous buck controller
• Efficient power conversion
• Wide input voltage range
• Various protection features
• Synchronization capability

Disadvantages

• Limited maximum output voltage range (up to 60V)
• Requires external components for operation

Working Principles

The LM5117PSQE/NOPB is a high-performance synchronous buck controller designed for efficient power conversion. It operates by regulating the duty cycle of the high-side and low-side MOSFETs in a synchronous buck converter topology. By adjusting the duty cycle, it controls the output voltage based on the feedback received from the FB pin.

The device incorporates various protection features such as adjustable soft-start, adjustable current limit, and thermal shutdown to ensure safe and reliable operation. It also offers synchronization capability with an external clock for applications requiring precise timing.

Detailed Application Field Plans

The LM5117PSQE/NOPB is suitable for a wide range of power management applications, including but not limited to:

1. Industrial power supplies
2. Telecom infrastructure
3. Automotive electronics
4. LED lighting systems
5. Battery charging systems
6. Distributed power architectures

Detailed and Complete Alternative Models

1. LM5118PSQE/NOPB
2. LM5119PSQE/NOPB
3. LM5120PSQE/NOPB
4. LM5121PSQE/NOPB
5. LM5122PSQE/NOPB

These alternative models offer similar functionality and characteristics to the LM5117PSQE/NOPB, providing options for different design requirements.

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