LM5056APMH/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: PowerPAD HTSSOP-20

Essence: The LM5056APMH/NOPB is a high-performance voltage regulator IC designed for various applications that require stable and adjustable output voltages.

Packaging/Quantity: The LM5056APMH/NOPB is available in a PowerPAD HTSSOP-20 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Voltage Range: 0.8V to 60V
• Maximum Output Current: 3A
• Quiescent Current: 1.7mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM5056APMH/NOPB has the following pin configuration:

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| | --| VIN | --| GND | --| FB | --| COMP | --| SS/TR | --| EN | --| PG | --| VCC | --| VOUT | |___________| ```

Functional Features

1. Wide Input Voltage Range: The LM5056APMH/NOPB can accept input voltages ranging from 4.5V to 75V, making it suitable for a wide range of applications.
2. Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to 60V, allowing flexibility in meeting specific requirements.
3. High Efficiency: The IC incorporates a high-efficiency synchronous buck regulator, minimizing power losses and maximizing energy conversion.
4. Overcurrent Protection: The LM5056APMH/NOPB features built-in overcurrent protection, preventing damage to the IC and connected devices in case of excessive current flow.
5. Thermal Shutdown Protection: To prevent overheating, the IC includes thermal shutdown protection, automatically disabling the regulator when the temperature exceeds a safe threshold.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - High efficiency minimizes power losses - Built-in overcurrent and thermal shutdown protection enhance reliability

Disadvantages: - Limited maximum output current of 3A may not be suitable for high-power applications - PowerPAD HTSSOP-20 package may require careful PCB layout design for effective heat dissipation

Working Principles

The LM5056APMH/NOPB operates as a synchronous buck regulator. It uses a pulse-width modulation (PWM) control scheme to regulate the output voltage. The feedback (FB) pin is used to set the desired output voltage, while the COMP pin is used for compensation purposes to stabilize the control loop. The SS/TR pin allows for soft-start and tracking functions. The EN pin enables or disables the regulator, while the PG pin indicates the status of the output voltage. The VCC pin provides power to the internal circuitry, and the VIN and GND pins are used for input and ground connections, respectively.

Detailed Application Field Plans

The LM5056APMH/NOPB can be used in various applications, including but not limited to: - Industrial power supplies - Automotive electronics - Telecommunications equipment - LED lighting systems - Battery charging circuits

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM5056APMH/NOPB include: - LM2596 - LM2576 - LT8610 - TPS54332

These alternative models can be considered based on specific requirements and design constraints.

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