BU4218F-TR

Product Overview

Category: Integrated Circuit (IC)

Use: BU4218F-TR is a high-performance power management IC designed for various applications in electronic devices.

Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range - Multiple protection features

Package: BU4218F-TR comes in a small outline package (SOP) with a compact footprint, making it suitable for space-constrained applications.

Essence: This IC integrates multiple functions into a single chip, providing efficient power management solutions for electronic devices.

Packaging/Quantity: BU4218F-TR is typically packaged in reels and available in quantities of 1000 units per reel.

Specifications

• Input Voltage Range: 3.3V - 5.5V
• Output Voltage Range: 1.2V - 3.3V
• Maximum Output Current: 1A
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Quiescent Current: <10µA

Detailed Pin Configuration

BU4218F-TR has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage pin

Functional Features

• High Efficiency: The BU4218F-TR utilizes advanced power management techniques to achieve high conversion efficiency, minimizing power losses.
• Wide Input Voltage Range: It can accept a wide range of input voltages, allowing compatibility with various power sources.
• Multiple Protection Features: The IC incorporates overcurrent protection, thermal shutdown, and short-circuit protection, ensuring safe operation and preventing damage to connected devices.
• Low Power Consumption: The quiescent current of less than 10µA helps conserve power and extend battery life in portable applications.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Compact size enables integration into space-constrained designs. - Wide input voltage range provides flexibility in power source selection. - Multiple protection features ensure safe operation.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Operating temperature range may restrict usage in extreme environments.

Working Principles

BU4218F-TR operates as a step-down (buck) converter, converting a higher input voltage to a lower output voltage. It utilizes pulse width modulation (PWM) techniques to regulate the output voltage based on feedback from the FB pin. The enable (EN) pin controls the IC's operation, allowing it to enter a low-power standby mode when not required.

Detailed Application Field Plans

BU4218F-TR finds applications in various electronic devices, including but not limited to: 1. Mobile phones 2. Tablets 3. Portable media players 4. Wearable devices 5. IoT devices

Detailed and Complete Alternative Models

1. BU4216F-TR: Similar functionality with a lower maximum output current of 500mA.
2. BU4219F-TR: Higher maximum output current of 1.5A, suitable for more power-demanding applications.
3. BU4220F-TR: Offers adjustable output voltage range for increased flexibility.

These alternative models provide options based on specific requirements and power needs.

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