MPQ4459DQT-LF-Z

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: DFN (Dual Flat No-Lead)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to 3.3V
• Maximum Output Current: 1.5A
• Quiescent Current: 50µA
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MPQ4459DQT-LF-Z has the following pin configuration:

1. VIN: Input Voltage
2. EN: Enable Pin
3. PGND: Power Ground
4. SW: Switch Node
5. FB: Feedback Pin
6. AGND: Analog Ground
7. VOUT: Output Voltage

Functional Features

• High Efficiency: The MPQ4459DQT-LF-Z offers high efficiency power conversion, minimizing energy loss.
• Low Power Consumption: With a quiescent current of only 50µA, it ensures low power consumption during standby or idle modes.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 2.7V to 5.5V, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to 3.3V, providing flexibility in different scenarios.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Low power consumption during standby
• Wide input voltage range
• Adjustable output voltage

Disadvantages

• Limited maximum output current (1.5A)
• Operating temperature range may not be suitable for extreme environments

Working Principles

The MPQ4459DQT-LF-Z is a voltage regulator IC that utilizes a switching regulator topology. It converts the input voltage to a regulated output voltage with high efficiency. The switching frequency of 1.2MHz ensures fast response and stable operation. The feedback pin (FB) allows for adjustable output voltage, while the enable pin (EN) controls the device's on/off state.

Detailed Application Field Plans

The MPQ4459DQT-LF-Z is commonly used in various applications, including:

1. Portable Electronic Devices: It can power microcontrollers, sensors, and other components in smartphones, tablets, and wearable devices.
2. Battery-Powered Systems: The IC efficiently regulates the voltage in battery-powered systems such as wireless headphones, portable speakers, and handheld gaming consoles.
3. Industrial Automation: It finds application in industrial automation systems, providing stable power supply for control circuits and sensors.
4. IoT Devices: The MPQ4459DQT-LF-Z is suitable for powering IoT devices like smart home sensors, environmental monitors, and connected appliances.

Detailed and Complete Alternative Models

1. MPQ4460DQT-LF-Z: Similar to MPQ4459DQT-LF-Z but with higher maximum output current (2A).
2. MPQ4446DQT-LF-Z: Lower cost alternative with slightly reduced efficiency and narrower input voltage range (2.7V to 4.5V).
3. MPQ4475DQT-LF-Z: Higher performance version with wider input voltage range (2.7V to 16V) and adjustable switching frequency.

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