LM5073MH/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance synchronous buck regulator
• Package: PowerPAD HTSSOP-20
• Essence: Efficient power conversion and management
• Packaging/Quantity: Tube/90 pieces per tube

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Voltage Range: 0.8V to 60V
• Output Current: Up to 3A
• Switching Frequency: Adjustable up to 1MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM5073MH/NOPB has a total of 20 pins, which are configured as follows:

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

Functional Features

• High efficiency power conversion
• Wide input voltage range
• Adjustable output voltage
• Synchronous rectification for improved efficiency
• Overcurrent and overtemperature protection
• Soft-start and tracking capability
• Synchronization with external clock signal

Advantages and Disadvantages

Advantages

• High efficiency operation
• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility
• Synchronous rectification improves overall efficiency
• Comprehensive protection features ensure safe operation
• Soft-start and tracking capability for controlled startup
• Synchronization option for system integration

Disadvantages

• Limited output current capacity (up to 3A)
• Requires external components for operation
• Relatively high cost compared to non-integrated solutions

Working Principles

The LM5073MH/NOPB is a synchronous buck regulator that converts a higher input voltage to a lower output voltage efficiently. It utilizes a high-performance integrated circuit to control the power conversion process. The device operates by switching the internal MOSFET on and off at a high frequency, allowing energy to be transferred from the input to the output with minimal losses.

The feedback loop ensures that the output voltage remains stable and within the desired range. The device also incorporates various protection mechanisms to safeguard against overcurrent and overtemperature conditions, ensuring reliable operation.

Detailed Application Field Plans

The LM5073MH/NOPB is commonly used in various applications where efficient power conversion and management are required. Some of the typical application fields include:

1. Industrial automation systems
2. Telecommunications equipment
3. Automotive electronics
4. Renewable energy systems
5. LED lighting applications
6. Battery charging systems
7. Power distribution units
8. Data centers
9. Medical devices
10. Consumer electronics

Detailed and Complete Alternative Models

1. LM5073MHX/NOPB: Similar to LM5073MH/NOPB, but with extended temperature range (-55°C to +125°C).
2. LM5073SH/NOPB: Smaller package variant (PowerPAD HTSSOP-16) of LM5073MH/NOPB.
3. LM5073MHX-80/NOPB: Similar to LM5073MHX/NOPB, but optimized for 80V input voltage range.

These alternative models offer similar functionality and features, providing options for different application requirements.

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