MAX8855AETJ+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: TQFN-32
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 2500 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: 30µA
• Switching Frequency: 2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8855AETJ+ has a total of 32 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. VOUT: Output Voltage
6. AGND: Analog Ground
7. PGND: Power Ground
8. BST: Boost Pin
9. SW: Switching Node
10. SS/TR: Soft-Start/Tracking Pin
11. ...
12. ... ...
13. ...

Functional Features

• High Efficiency: The MAX8855AETJ+ offers high efficiency power conversion, minimizing energy loss.
• Low Power Consumption: With a quiescent current of only 30µA, the device ensures minimal power consumption during standby or low-load conditions.
• 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 for different system requirements.
• Overcurrent Protection: The device incorporates overcurrent protection to safeguard against excessive current flow.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Low power consumption during standby - Wide input voltage range - Adjustable output voltage - Overcurrent protection

Disadvantages: - Limited maximum output current (1.5A)

Working Principles

The MAX8855AETJ+ is a voltage regulator IC that converts the input voltage to a regulated output voltage. It utilizes a switching regulator architecture to achieve high efficiency. The input voltage is first boosted to a higher voltage using an internal boost converter. This boosted voltage is then fed into a buck converter stage to step it down to the desired output voltage. The feedback mechanism ensures that the output voltage remains stable within the specified range.

Detailed Application Field Plans

The MAX8855AETJ+ is widely used in various applications where efficient power management is required. Some of the common application fields include:

1. Mobile Devices: The IC can be used in smartphones, tablets, and other portable devices to regulate the voltage for different components such as processors, memory, and display panels.
2. IoT Devices: It is suitable for powering sensors, microcontrollers, and wireless communication modules in Internet of Things (IoT) devices.
3. Industrial Equipment: The voltage regulator can be employed in industrial automation systems, control panels, and motor drives to ensure stable power supply.
4. Automotive Electronics: It finds applications in automotive systems like infotainment systems, advanced driver-assistance systems (ADAS), and lighting control modules.

Detailed and Complete Alternative Models

1. MAX8855AEUB+: Similar specifications, but available in a smaller package (uMAX-10).
2. MAX8855AEUB+T: Tape & Reel packaging, 3000 units per reel.
3. MAX8855AEUB+TG45: Tape & Reel packaging, 4500 units per reel.

These alternative models provide similar functionality and can be considered as substitutes for the MAX8855AETJ+ in different applications.

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