BD3871FS-E2

Overview

• Category: Integrated Circuit
• Use: Power Management IC
• Characteristics: High efficiency, compact size, low power consumption
• Package: SOP-8
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0.8V to 16V
• Output Current: 1A
• Quiescent Current: 50μA (typical)
• Switching Frequency: 1.2MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The BD3871FS-E2 has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ───┼───┼───┤ │ 3 │ 4 │ ───┼───┼───┤ │ 5 │ 6 │ ───┼───┼───┤ │ 7 │ 8 │ └───┴───┘

Pin Description: 1. VIN: Input Voltage 2. GND: Ground 3. FB: Feedback Pin 4. EN: Enable Pin 5. SW: Switching Node 6. PGND: Power Ground 7. VOUT: Output Voltage 8. SS: Soft-Start Pin

Functional Characteristics

• High efficiency voltage regulation
• Overcurrent protection
• Thermal shutdown protection
• Soft-start function for smooth startup
• Adjustable output voltage
• Low quiescent current

Advantages

• Compact size allows for space-saving designs
• High efficiency reduces power consumption
• Wide input voltage range enables versatile applications
• Overcurrent and thermal protection ensure system safety
• Soft-start function prevents inrush current

Disadvantages

• Output current limited to 1A
• Operating temperature range may not be suitable for extreme environments

Applicable Range of Products

The BD3871FS-E2 is suitable for various electronic devices that require efficient voltage regulation, such as: - Mobile phones - Tablets - Portable audio players - Digital cameras - IoT devices

Working Principles

The BD3871FS-E2 is a voltage regulator IC that converts the input voltage to a stable output voltage. It uses a switching regulator topology to achieve high efficiency. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a constant output voltage.

Detailed Application Field Plans

The BD3871FS-E2 can be used in a wide range of applications, including: 1. Mobile phone power management 2. Battery-powered devices 3. USB power supplies 4. Industrial automation systems 5. Automotive electronics

Detailed Alternative Models

Some alternative models to the BD3871FS-E2 include: - BD3872FS-E2 - BD3873FS-E2 - BD3874FS-E2 - BD3875FS-E2 - BD3876FS-E2

5 Common Technical Questions and Answers

1. Q: What is the maximum input voltage supported by the BD3871FS-E2? A: The BD3871FS-E2 can handle input voltages up to 18V.

2. Q: Can the output voltage be adjusted? A: Yes, the output voltage of the BD3871FS-E2 is adjustable.

3. Q: Does the BD3871FS-E2 have overcurrent protection? A: Yes, the BD3871FS-E2 features overcurrent protection.

4. Q: What is the typical quiescent current of the BD3871FS-E2? A: The typical quiescent current is 50μA.

5. Q: What is the operating temperature range of the BD3871FS-E2? A: The BD3871FS-E2 can operate in temperatures ranging from -40°C to +85°C.

(Word count: 554)