PQ05RD21J00H

Product Overview

• Category: Electronic Component
• Use: Power Supply Regulator
• Characteristics: High efficiency, low power consumption
• Package: TO-220AB
• Essence: Voltage Regulator IC
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage: 4.5V to 18V
• Output Voltage: 2.1V
• Output Current: 500mA
• Dropout Voltage: 0.3V (typical)
• Quiescent Current: 50µA (typical)
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The PQ05RD21J00H has a standard TO-220AB package with three pins:

1. Pin 1: Input Voltage (VIN)
2. Pin 2: Ground (GND)
3. Pin 3: Output Voltage (VOUT)

Functional Features

• Low dropout voltage for efficient power conversion
• Stable output voltage even under varying input conditions
• Overcurrent protection to prevent damage to the device
• Thermal shutdown protection to prevent overheating
• Short-circuit protection for added safety

Advantages and Disadvantages

Advantages: - High efficiency resulting in reduced power consumption - Compact TO-220AB package for easy integration - Wide input voltage range for versatile applications - Excellent line and load regulation for stable performance

Disadvantages: - Limited output current of 500mA may not be suitable for high-power applications - Requires external capacitors for stability

Working Principles

The PQ05RD21J00H is a voltage regulator IC that maintains a constant output voltage of 2.1V, regardless of variations in the input voltage. It achieves this by using a feedback mechanism that continuously adjusts the internal circuitry to compensate for changes in load and input conditions. The dropout voltage is kept minimal, ensuring efficient power conversion.

Detailed Application Field Plans

The PQ05RD21J00H is commonly used in various electronic devices and applications, including:

1. Battery-powered devices: Provides stable voltage supply for portable electronics such as smartphones, tablets, and digital cameras.
2. Automotive electronics: Ensures consistent power delivery to automotive components like infotainment systems, sensors, and lighting modules.
3. Industrial equipment: Used in control systems, motor drives, and instrumentation devices to maintain reliable voltage levels.
4. Communication systems: Regulates voltage in routers, switches, and other network equipment to ensure uninterrupted operation.

Detailed and Complete Alternative Models

1. LM1117-2.1: Similar voltage regulator IC with a TO-220 package and 2.1V output voltage.
2. LT1761-2.1: Low dropout voltage regulator with a SOT-223 package and 2.1V output voltage.
3. MCP1702-2.1: Microchip's voltage regulator IC with a SOT-23 package and 2.1V output voltage.

These alternative models offer similar functionality and can be considered as substitutes for the PQ05RD21J00H in various applications.

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