LM5073MHX/NOPB

Product Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: High Efficiency, Wide Input Voltage Range
• Package: 20-TSSOP (Thin Shrink Small Outline Package)
• Essence: DC-DC Converter Controller
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Voltage Range: 0.8V to 60V
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to +125°C
• Efficiency: Up to 95%
• Protection Features: Overvoltage, Undervoltage, Overcurrent, Overtemperature

Pin Configuration

The LM5073MHX/NOPB has a 20-pin TSSOP package with the following pin configuration:

1. VIN: Input voltage
2. VCC: Supply voltage for internal circuitry
3. GND: Ground
4. FB: Feedback pin for output voltage regulation
5. COMP: Compensation pin for stability control
6. SS/TR: Soft-start and tracking control
7. EN: Enable pin for device operation
8. PG: Power Good indicator
9. SYNC: Synchronization input for external clock
10. RT/CLK: Timing resistor or clock frequency selection
11. BOOT: Bootstrap capacitor connection
12. SW: Switch node connection
13. AGND: Analog ground
14. PGND: Power ground
15. NC: No connect
16. NC: No connect
17. NC: No connect
18. NC: No connect
19. NC: No connect
20. NC: No connect

Functional Features

• Wide input voltage range allows for versatile applications
• High efficiency ensures minimal power loss
• Integrated protection features safeguard against faults and damage
• Synchronization input enables synchronization with external clock
• Soft-start and tracking control for smooth startup

Advantages and Disadvantages

Advantages

• Wide input voltage range makes it suitable for various power supply designs
• High efficiency reduces energy consumption and heat dissipation
• Comprehensive protection features enhance system reliability
• Synchronization capability provides flexibility in system integration
• Soft-start and tracking control ensure smooth operation during startup

Disadvantages

• Limited output current capacity compared to some other models
• Higher cost compared to basic DC-DC converter controllers

Working Principles

The LM5073MHX/NOPB is a DC-DC converter controller that regulates the output voltage based on the feedback received from the FB pin. It utilizes a switching frequency of up to 2MHz to efficiently convert the input voltage to the desired output voltage. The device incorporates various protection features such as overvoltage, undervoltage, overcurrent, and overtemperature protection to ensure safe operation.

Detailed Application Field Plans

The LM5073MHX/NOPB is commonly used in applications where efficient power conversion is required, such as:

1. Industrial Power Supplies: Provides regulated power for industrial equipment and machinery.
2. Automotive Electronics: Used in automotive power systems for efficient voltage conversion.
3. Telecommunications: Enables efficient power management in telecom infrastructure.
4. Renewable Energy Systems: Facilitates power conversion in solar and wind energy systems.
5. LED Lighting: Regulates power for LED lighting fixtures, ensuring optimal performance.

Detailed and Complete Alternative Models

1. LM5073MH/NOPB: Similar to LM5073MHX/NOPB but without synchronization input.
2. LM5073SHX/NOPB: Higher current capacity version of LM5073MHX/NOPB.
3. LM5073MHX-80/NOPB: Variant with extended input voltage range up to 80V.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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