BD33KA5WF-E2

Product Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: High efficiency, low dropout voltage, compact size
• Package: TO-252-5L (DPAK)
• Essence: Integrated voltage regulator with adjustable output voltage
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 1.2V to 15V
• Output Current: Up to 3A
• Dropout Voltage: 300mV typical at 3A
• Quiescent Current: 100µA typical
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The BD33KA5WF-E2 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

• Adjustable output voltage through external resistors
• Overcurrent protection
• Thermal shutdown protection
• Fast transient response
• Low output voltage noise

Advantages

• High efficiency, reducing power dissipation
• Wide input voltage range allows for versatile applications
• Compact package size enables space-saving designs
• Excellent load and line regulation
• Robust protection features ensure device reliability

Disadvantages

• Dropout voltage may limit performance in low input voltage scenarios
• Limited output current compared to higher-rated regulators
• Requires external components for proper operation

Working Principles

The BD33KA5WF-E2 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage to adjust the pass transistor's conduction, maintaining a stable output voltage. The enable pin (EN) controls the regulator's on/off state.

Detailed Application Field Plans

The BD33KA5WF-E2 is suitable for various applications, including:

1. Consumer electronics: Powering microcontrollers, sensors, and other low-power devices
2. Industrial equipment: Providing stable voltage for control systems and sensors
3. Automotive electronics: Regulating voltage for infotainment systems, lighting, and engine control units
4. Telecommunications: Powering base stations, routers, and network equipment

Detailed and Complete Alternative Models

1. BD33KA5WF-E2R: Same specifications and features as BD33KA5WF-E2, but in a different package (TO-263-5L)
2. BD33KA5WF-E3: Improved version with lower dropout voltage and higher output current capability
3. BD33KA5WF-E4: Higher input voltage range variant for specific applications

Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.

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