NCP81151BMNTBG

Product Overview

Category

The NCP81151BMNTBG belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used as a synchronous buck converter, which converts a higher input voltage into a lower output voltage efficiently.

Characteristics

• The NCP81151BMNTBG is designed to operate with an input voltage range from 4.5V to 18V.
• It provides an adjustable output voltage range from 0.6V to 5.5V.
• This IC offers a maximum output current of 15A.
• It features a high efficiency conversion with low power dissipation.
• The NCP81151BMNTBG incorporates various protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.

Package and Quantity

The NCP81151BMNTBG is available in a compact and industry-standard QFN package. The package dimensions are 5mm x 5mm. It is supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V - 18V
• Output Voltage Range: 0.6V - 5.5V
• Maximum Output Current: 15A
• Efficiency: High efficiency conversion
• Protection Features: Overcurrent protection, thermal shutdown, undervoltage lockout
• Package Type: QFN
• Package Dimensions: 5mm x 5mm
• Packaging: Tape and reel
• Quantity per Reel: 3000 units

Detailed Pin Configuration

The NCP81151BMNTBG has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin for turning the IC on/off
5. PGND: Power ground pin
6. SW: Switching node pin for connecting the inductor and output capacitor
7. VOUT: Output voltage pin

Functional Features

• High efficiency conversion: The NCP81151BMNTBG offers efficient power conversion, minimizing power loss during voltage regulation.
• Protection features: It incorporates overcurrent protection, thermal shutdown, and undervoltage lockout to safeguard the circuit and connected components.
• Adjustable output voltage: The IC allows for easy adjustment of the output voltage within the specified range.
• Compact package: The QFN package ensures a small footprint, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages

• High efficiency conversion reduces power dissipation.
• Multiple protection features enhance circuit reliability.
• Adjustable output voltage provides flexibility.
• Compact package size saves board space.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires additional external components for proper operation.

Working Principles

The NCP81151BMNTBG operates as a synchronous buck converter. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage. The input voltage is stepped down to the desired output voltage using a combination of inductors, capacitors, and switches. The PWM control adjusts the duty cycle of the switches to maintain the desired output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The NCP81151BMNTBG can be used in various applications, including but not limited to: - Power supplies for computer systems - Industrial automation equipment - Telecommunications infrastructure - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

1. NCP81152BMNTBG: Similar to NCP81151BMNTBG, but with a higher maximum output current of 20A.
2. NCP81153BMNTBG: Similar to NCP81151BMNTBG, but with a lower maximum output current of 10A.
3. NCP81154BMNTBG: Similar to NCP81151BMNTBG, but with additional protection features such as overvoltage protection.

These alternative models offer similar functionality and characteristics, providing options based on specific application requirements.

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