BU7814KN-E2

Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: SOP-8
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 2500 pieces per reel

Specifications and Parameters

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 1.2V to 16V
• Output Current: Up to 1A
• Quiescent Current: 50µA (typical)
• Dropout Voltage: 200mV (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The BU7814KN-E2 features a SOP-8 package with the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. EN (Enable)
4. FB (Feedback)
5. VOUT (Output Voltage)
6. NC (No Connection)
7. NC (No Connection)
8. VREF (Reference Voltage)

Functional Characteristics

• High Efficiency: The BU7814KN-E2 utilizes advanced power management techniques to achieve high efficiency, minimizing power loss.
• Low Power Consumption: With a quiescent current of only 50µA, the IC ensures low power consumption during standby or idle modes.
• Voltage Regulation: It provides stable and accurate output voltage regulation, ensuring reliable performance for various applications.

Advantages and Disadvantages

Advantages: - High efficiency design - Wide input voltage range - Low dropout voltage - Compact SOP-8 package

Disadvantages: - Limited output current capacity (up to 1A)

Applicable Range of Products

The BU7814KN-E2 is suitable for a wide range of products requiring voltage regulation, such as: - Consumer Electronics - Industrial Equipment - Automotive Applications - Telecommunications Devices

Working Principles

The BU7814KN-E2 operates as a voltage regulator by comparing the output voltage with a reference voltage. It adjusts the internal circuitry to maintain a stable output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The BU7814KN-E2 can be used in various applications, including: 1. Mobile Phones: Provides stable power supply for the phone's components. 2. LED Lighting: Regulates the voltage for consistent brightness. 3. Battery-Powered Devices: Extends battery life by efficiently managing power consumption. 4. Motor Control: Ensures reliable operation of motors by maintaining constant voltage. 5. Audio Amplifiers: Provides clean and stable power for audio amplification circuits.

Detailed Alternative Models

Some alternative models to the BU7814KN-E2 include: - LM7805: A popular linear voltage regulator with similar specifications. - LT1763: A low dropout voltage regulator suitable for high-performance applications. - TPS7A47: An ultra-low noise, high PSRR voltage regulator for sensitive audio applications. - ADP3339: A high current, low dropout voltage regulator for demanding industrial applications. - MAX603: A precision voltage reference with low quiescent current.

5 Common Technical Questions and Answers

1. Q: What is the maximum input voltage for the BU7814KN-E2? A: The IC can handle input voltages ranging from 4.5V to 18V.

2. Q: What is the typical quiescent current of the BU7814KN-E2? A: The typical quiescent current is 50µA.

3. Q: Can the BU7814KN-E2 regulate both positive and negative voltages? A: No, it can only regulate positive voltages.

4. Q: What is the dropout voltage of the BU7814KN-E2? A: The typical dropout voltage is 200mV.

5. Q: Is the BU7814KN-E2 suitable for automotive applications? A: Yes, it is suitable for automotive applications due to its wide input voltage range and robust design.

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