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SMPZ3937B-E3/85A
Product Overview
- Category: Semiconductor
- Use: Voltage Regulator
- Characteristics: High efficiency, low dropout voltage, compact size
- Package: SOT-223
- Essence: Regulating voltage in electronic circuits
- Packaging/Quantity: Tape & Reel, 3000 units per reel
Specifications
- Input Voltage Range: 4.5V to 18V
- Output Voltage: 3.3V
- Output Current: 1A
- Dropout Voltage: 400mV at 1A
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
- Pin 1: Input Voltage (VIN)
- Pin 2: Ground (GND)
- Pin 3: Output Voltage (VOUT)
Functional Features
- High efficiency over a wide input voltage range
- Thermal shutdown and current limit protection
- Low quiescent current
Advantages and Disadvantages
- Advantages:
- Wide input voltage range
- Compact package size
- Thermal shutdown protection
- Disadvantages:
- Limited output current compared to some alternatives
- Slightly higher dropout voltage under heavy loads
Working Principles
The SMPZ3937B-E3/85A is a fixed-output voltage regulator that maintains a constant output voltage despite changes in the input voltage or load current. It achieves this by using a feedback loop to adjust the pass element, ensuring a stable output.
Detailed Application Field Plans
This voltage regulator is suitable for various applications, including:
- Battery-powered devices
- Automotive electronics
- Industrial control systems
- Consumer electronics
Detailed and Complete Alternative Models
- SMPZ3901B-E3/82A: 1.8V output voltage, 1A output current
- SMPZ3922C-E3/81A: 5V output voltage, 1.5A output current
- SMPZ3945D-E3/80A: Adjustable output voltage, 500mA output current
This completes the entry for SMPZ3937B-E3/85A, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.