BD9D320EFJ-E2

Product Overview

• Category: Power Management IC
• Use: Voltage Regulator
• Characteristics: High efficiency, compact size, low power consumption
• Package: SOP8
• Essence: This product is a voltage regulator integrated circuit designed for various applications requiring stable and regulated power supply.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0.8V to 15V
• Maximum Output Current: 3A
• Quiescent Current: 50µA (typical)
• Switching Frequency: 1MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BD9D320EFJ-E2 package consists of 8 pins arranged as follows:

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| | --| VIN GND |-- Pin 1: VIN - Input Voltage --| SW FB |-- Pin 2: SW - Switching Node --| EN NC |-- Pin 3: EN - Enable Control --| PG VOUT|-- Pin 4: PG - Power Good Indicator --| COMP NC |-- Pin 5: COMP - Compensation --| SS NC |-- Pin 6: SS - Soft Start --| FB GND |-- Pin 7: FB - Feedback --| GND VOUT|-- Pin 8: GND - Ground |___________| ```

Functional Features

• High efficiency conversion
• Wide input voltage range
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection
• Power good indicator

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Compact size allows for space-saving designs - Wide input voltage range enables versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal protection ensure device safety - Power good indicator enhances system reliability

Disadvantages: - Limited maximum output current (3A) - Requires external components for proper operation

Working Principles

The BD9D320EFJ-E2 is a step-down voltage regulator that operates on the principle of pulse width modulation (PWM). It takes an input voltage within the specified range and converts it to a regulated output voltage. The integrated circuit uses a high-frequency switching transistor to control the energy flow and maintain the desired output voltage. Feedback mechanisms, such as the FB pin, continuously monitor the output voltage and adjust the switching frequency accordingly to maintain stability.

Detailed Application Field Plans

The BD9D320EFJ-E2 is widely used in various electronic devices and systems that require stable and regulated power supply. Some common application fields include:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Portable audio players

2. Industrial Equipment:

   • Factory automation systems
   • Motor control units
   • LED lighting systems

3. Automotive Electronics:

   • Infotainment systems
   • Advanced driver-assistance systems (ADAS)
   • Electric vehicle powertrains

4. Communication Systems:

   • Routers
   • Switches
   • Base stations

Detailed and Complete Alternative Models

1. BD9D320EFJ-E2-ND
2. BD9D320EFJ-E2-ND-C
3. BD9D320EFJ-E2-ND-D

These alternative models offer similar functionality and characteristics to the BD9D320EFJ-E2, providing options for different package types, additional features, or extended temperature ranges.

In conclusion, the BD9D320EFJ-E2 is a power management IC that serves as a voltage regulator. It offers high efficiency, compact size, and low power consumption. With its wide input voltage range and adjustable output voltage, it finds applications in various fields such as consumer electronics, industrial equipment, automotive electronics, and communication systems. While it has limitations in terms of maximum output current and external component requirements, its advantages outweigh the disadvantages, making it a reliable choice for power regulation needs.