BD9251FV-E2

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low power consumption - Compact size - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: SOP-8 (Small Outline Package)

Essence: BD9251FV-E2 is a power management IC designed for efficient voltage regulation in various electronic devices.

Packaging/Quantity: Available in reels of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0.8V to 6.0V
• Maximum Output Current: 1.5A
• Quiescent Current: 60μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BD9251FV-E2 has the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VIN | Input Voltage | | 2 | GND | Ground | | 3 | EN | Enable Control | | 4 | FB | Feedback Voltage | | 5 | COMP | Compensation | | 6 | SS | Soft Start | | 7 | VOUT | Output Voltage | | 8 | PGND | Power Ground |

Functional Features

• High efficiency voltage regulation
• Stable output voltage under varying load conditions
• Overcurrent protection prevents damage to the IC and connected devices
• Thermal shutdown protection prevents overheating
• Soft start function for smooth power-up

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Compact size allows for space-saving designs - Wide input voltage range enables compatibility with various power sources - Overcurrent and thermal shutdown protection enhance device safety

Disadvantages: - Maximum output current limited to 1.5A, may not be suitable for high-power applications

Working Principles

The BD9251FV-E2 is a voltage regulator that maintains a stable output voltage regardless of changes in the input voltage or load conditions. It achieves this through a combination of feedback control, compensation, and soft start functions. The IC continuously monitors the output voltage and adjusts the internal circuitry to maintain the desired voltage level.

Detailed Application Field Plans

The BD9251FV-E2 is widely used in various electronic devices that require efficient voltage regulation. Some common application fields include:

1. Mobile Devices:

   • Smartphones
   • Tablets
   • Portable media players

2. Consumer Electronics:

   • Digital cameras
   • Gaming consoles
   • Set-top boxes

3. Industrial Equipment:

   • Factory automation systems
   • Test and measurement instruments
   • Power supplies

4. Automotive Electronics:

   • Infotainment systems
   • Advanced driver-assistance systems (ADAS)
   • Lighting control modules

Detailed and Complete Alternative Models

1. BD9260FV-E2

   • Similar specifications and features as BD9251FV-E2
   • Different package: HSOP-8 (Heat Sink Small Outline Package)

2. BD9225FV-E2

   • Lower maximum output current: 1.0A
   • Smaller package: SOP-8

3. BD9275FV-E2

   • Higher maximum output current: 2.0A
   • Similar package: SOP-8

4. BD9245FV-E2

   • Lower input voltage range: 2.7V to 5.5V
   • Similar package: SOP-8

These alternative models provide options with varying specifications and features to suit different application requirements.

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