RT9073A-28GQZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: QFN-16

Essence: The RT9073A-28GQZ is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The RT9073A-28GQZ is available in a QFN-16 package. It is typically sold in reels containing a specified quantity of units.

Specifications

The RT9073A-28GQZ has the following specifications:

Input Voltage Range: 2.5V - 6V
Output Voltage Range: 0.8V - 5.5V
Maximum Output Current: 300mA
Dropout Voltage: 200mV @ 100mA
Quiescent Current: 60µA
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9073A-28GQZ has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

VIN: Input voltage pin
EN: Enable pin
FB: Feedback pin
GND: Ground pin
PGND: Power ground pin
VOUT: Output voltage pin
NC: No connection
NC: No connection
NC: No connection
NC: No connection
NC: No connection
NC: No connection
NC: No connection
NC: No connection
NC: No connection
NC: No connection

Functional Features

The RT9073A-28GQZ offers the following functional features:

High Efficiency: The voltage regulator exhibits high efficiency, minimizing power loss and maximizing battery life in portable devices.
Low Dropout Voltage: With a low dropout voltage of 200mV at 100mA, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
Adjustable Output Voltage: The output voltage can be adjusted within the range of 0.8V to 5.5V, providing flexibility for various applications.
Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow and potential damage.
Thermal Shutdown Protection: In case of excessive temperature rise, the thermal shutdown feature activates, preventing overheating and ensuring safe operation.

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Adjustable output voltage suits different applications - Overcurrent and thermal shutdown protection enhance reliability

Disadvantages: - Limited maximum output current (300mA) - Requires external components for proper operation

Working Principles

The RT9073A-28GQZ operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. The error amplifier adjusts the pass transistor to maintain a constant output voltage despite variations in the input voltage or load conditions. The enable pin (EN) controls the regulator's on/off state.

Detailed Application Field Plans

The RT9073A-28GQZ finds application in various electronic devices that require a stable and regulated power supply. Some potential application fields include:

Mobile Devices: Smartphones, tablets, and portable media players benefit from the IC's high efficiency and adjustable output voltage.
IoT Devices: Connected devices, such as sensors and wearables, can utilize the voltage regulator for reliable power management.
Industrial Equipment: The IC can be employed in industrial control systems, automation equipment, and instrumentation devices.
Automotive Electronics: The voltage regulator is suitable for automotive applications, including infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

LM1117-3.3: A popular alternative with similar specifications and pin configuration.
MCP1700-3302E: Another viable option offering comparable performance and package type.
TPS79333: An alternative model from Texas Instruments, providing similar features and functionality.

These alternative models can serve as substitutes for the RT9073A-28GQZ, depending on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací RT9073A-28GQZ v technických řešeních

Sure! Here are 10 common questions and answers related to the application of RT9073A-28GQZ in technical solutions:

Question: What is RT9073A-28GQZ?
- Answer: RT9073A-28GQZ is a specific model of voltage regulator IC (integrated circuit) manufactured by Richtek Technology. It is designed to provide a stable output voltage of 2.8V.
Question: What are the typical applications of RT9073A-28GQZ?
- Answer: RT9073A-28GQZ is commonly used in various electronic devices and systems that require a regulated 2.8V power supply, such as microcontrollers, sensors, and communication modules.
Question: What is the input voltage range for RT9073A-28GQZ?
- Answer: The input voltage range for RT9073A-28GQZ is typically between 2.5V and 5.5V.
Question: What is the maximum output current of RT9073A-28GQZ?
- Answer: The maximum output current of RT9073A-28GQZ is typically around 300mA.
Question: Does RT9073A-28GQZ require any external components for operation?
- Answer: Yes, RT9073A-28GQZ requires a few external components, such as input and output capacitors, to ensure stability and proper functioning.
Question: Is RT9073A-28GQZ suitable for battery-powered applications?
- Answer: Yes, RT9073A-28GQZ is well-suited for battery-powered applications due to its low dropout voltage and low quiescent current.
Question: Can RT9073A-28GQZ handle input voltage fluctuations?
- Answer: Yes, RT9073A-28GQZ has built-in protection features like overcurrent protection and thermal shutdown, which help it withstand input voltage fluctuations and protect the connected components.
Question: What is the operating temperature range of RT9073A-28GQZ?
- Answer: The operating temperature range of RT9073A-28GQZ is typically between -40°C and 85°C.
Question: Is RT9073A-28GQZ available in different package options?
- Answer: Yes, RT9073A-28GQZ is available in various package options, such as QFN (Quad Flat No-Lead) and SOP (Small Outline Package).
Question: Where can I find more information about RT9073A-28GQZ and its application notes?
- Answer: You can find more detailed information about RT9073A-28GQZ, including its datasheet and application notes, on the official website of Richtek Technology or through authorized distributors.