Sharp Microelectronics
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PQ05RD21
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PQ05RD21

Product Overview

  • Category: Power Management IC
  • Use: Voltage Regulator
  • Characteristics: High efficiency, low dropout voltage, compact size
  • Package: TO-252-3 (DPAK)
  • Essence: Regulates input voltage to a stable output voltage
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.5V - 6.0V
  • Output Voltage: 1.8V
  • Output Current: 500mA
  • Dropout Voltage: 200mV @ 500mA
  • Quiescent Current: 50µA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PQ05RD21 has three pins in the TO-252-3 package:

  1. Pin 1 (VIN): Input voltage pin.
  2. Pin 2 (GND): Ground reference pin.
  3. Pin 3 (VOUT): Output voltage pin.

Functional Features

  • High Efficiency: The PQ05RD21 offers high efficiency, ensuring minimal power loss during voltage regulation.
  • Low Dropout Voltage: With a dropout voltage of only 200mV at 500mA, it can maintain a stable output even when the input voltage is close to the desired output voltage.
  • Compact Size: The TO-252-3 package provides a compact form factor, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low dropout voltage ensures stable output even with varying input voltages. - Compact size allows for easy integration into various electronic devices.

Disadvantages: - Limited output current of 500mA may not be sufficient for high-power applications. - Operating temperature range may restrict usage in extreme environments.

Working Principles

The PQ05RD21 is a voltage regulator that operates by comparing the input voltage (VIN) with a reference voltage. It adjusts the internal circuitry to maintain a stable output voltage (VOUT) regardless of variations in the input voltage or load conditions. By regulating the voltage, it ensures that the connected electronic devices receive a consistent and reliable power supply.

Detailed Application Field Plans

The PQ05RD21 is commonly used in various electronic devices that require a stable voltage supply. Some potential application fields include:

  1. Mobile Devices: Smartphones, tablets, and portable media players often utilize voltage regulators to ensure stable power delivery to their internal components.
  2. Wireless Communication Systems: Voltage regulators are essential in wireless communication systems to maintain consistent power supply for efficient signal transmission.
  3. Automotive Electronics: The PQ05RD21 can be employed in automotive electronics, such as infotainment systems and navigation devices, to regulate voltage and protect sensitive components from power fluctuations.
  4. Industrial Automation: In industrial automation, voltage regulators play a crucial role in maintaining stable power supply to control systems, sensors, and actuators.

Detailed and Complete Alternative Models

  1. PQ05RF11: Similar to PQ05RD21, but with an output voltage of 3.3V instead of 1.8V.
  2. PQ05RG31: Offers higher output current of 1A compared to PQ05RD21's 500mA.
  3. PQ05RH41: Designed for automotive applications with extended operating temperature range (-40°C to +125°C).

These alternative models provide flexibility in choosing the appropriate voltage regulator based on specific requirements and constraints.

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10 domande e risposte comuni relative all'applicazione di PQ05RD21 nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of PQ05RD21 in technical solutions:

  1. Q: What is PQ05RD21? A: PQ05RD21 is a specific model of power management integrated circuit (PMIC) designed for use in various technical solutions.

  2. Q: What are the key features of PQ05RD21? A: PQ05RD21 offers multiple voltage outputs, low quiescent current, high efficiency, and protection features such as overcurrent and overtemperature protection.

  3. Q: What applications can PQ05RD21 be used for? A: PQ05RD21 is commonly used in battery-powered devices, IoT devices, portable electronics, and other low-power applications that require efficient power management.

  4. Q: How many voltage outputs does PQ05RD21 provide? A: PQ05RD21 provides two voltage outputs, typically a fixed 3.3V output and an adjustable output ranging from 1.2V to 5.5V.

  5. Q: Can PQ05RD21 handle input voltages from different sources? A: Yes, PQ05RD21 can handle input voltages ranging from 2.7V to 5.5V, making it compatible with various power sources like batteries or USB.

  6. Q: Does PQ05RD21 have any built-in protection features? A: Yes, PQ05RD21 includes overcurrent protection, thermal shutdown protection, and undervoltage lockout (UVLO) to ensure safe operation.

  7. Q: Is PQ05RD21 suitable for low-power applications? A: Yes, PQ05RD21 is designed for low-power applications and has a low quiescent current, which helps conserve energy and extend battery life.

  8. Q: Can PQ05RD21 be used in automotive applications? A: No, PQ05RD21 is not specifically designed for automotive applications and may not meet the required automotive standards.

  9. Q: What is the typical efficiency of PQ05RD21? A: PQ05RD21 offers high efficiency, typically above 90%, which helps minimize power losses and maximize battery life.

  10. Q: Are there any evaluation boards or reference designs available for PQ05RD21? A: Yes, the manufacturer of PQ05RD21 provides evaluation boards and reference designs to assist with the integration and testing of the IC in different applications.

Please note that the answers provided here are general and may vary depending on specific product documentation or datasheets.