MAX881REUB+T

Product Overview

Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
Package: µMAX®
Essence: Voltage Regulator
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Input Voltage Range: 2.5V to 5.5V
Output Voltage Range: 1.25V to 3.3V
Output Current: Up to 150mA
Quiescent Current: 7µA (typical)
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX881REUB+T has the following pin configuration:

```

| | --| VOUT | --| GND | --| VIN | --| EN | |___________| ```

VOUT: Output Voltage
GND: Ground
VIN: Input Voltage
EN: Enable Pin

Functional Features

High efficiency voltage regulation
Low quiescent current for power-saving applications
Thermal shutdown protection
Short-circuit and reverse polarity protection
Adjustable output voltage with external resistors

Advantages

Compact package size allows for space-constrained designs
Wide input voltage range enables compatibility with various power sources
Low quiescent current prolongs battery life in portable devices
Robust protection features enhance system reliability

Disadvantages

Limited output current may not be suitable for high-power applications
Fixed output voltage range restricts flexibility in certain designs

Working Principles

The MAX881REUB+T is a voltage regulator IC that takes an input voltage within the range of 2.5V to 5.5V and provides a regulated output voltage between 1.25V and 3.3V. It achieves high efficiency by utilizing a synchronous buck converter architecture.

The device operates by continuously monitoring the output voltage and adjusting the duty cycle of the internal switches to maintain a stable output. The enable pin (EN) allows for easy control of the regulator's operation, enabling power-saving modes when necessary.

Detailed Application Field Plans

The MAX881REUB+T is commonly used in various battery-powered applications, such as:

Portable electronic devices: smartphones, tablets, portable media players
Wearable devices: smartwatches, fitness trackers
IoT devices: sensors, wireless modules
Battery-powered industrial equipment: handheld instruments, data loggers

Its small package size and low quiescent current make it suitable for space-constrained and power-sensitive designs.

Detailed and Complete Alternative Models

MAX882REUB+T: Similar to MAX881REUB+T but with a higher output current capability of up to 300mA.
MAX883REUB+T: Provides adjustable output voltage range from 0.8V to 3.3V, suitable for more versatile designs.
MAX884REUB+T: Offers a fixed output voltage of 5V, ideal for applications requiring a stable 5V supply.

These alternative models provide options for different output current requirements and flexibility in output voltage selection.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX881REUB+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX881REUB+T in technical solutions:

Q: What is the MAX881REUB+T? A: The MAX881REUB+T is a voltage regulator IC (integrated circuit) that provides a regulated output voltage for various electronic devices.
Q: What is the input voltage range of the MAX881REUB+T? A: The input voltage range of the MAX881REUB+T is typically between 2.5V and 5.5V.
Q: What is the output voltage range of the MAX881REUB+T? A: The output voltage range of the MAX881REUB+T can be adjusted from 1.2V to 5.5V using external resistors.
Q: What is the maximum output current of the MAX881REUB+T? A: The maximum output current of the MAX881REUB+T is typically around 500mA.
Q: Can the MAX881REUB+T handle input voltages higher than 5.5V? A: No, the MAX881REUB+T is designed to operate within an input voltage range of 2.5V to 5.5V. Exceeding this range may damage the IC.
Q: Does the MAX881REUB+T require any external components for operation? A: Yes, the MAX881REUB+T requires a few external components such as input/output capacitors and resistors to set the desired output voltage.
Q: Is the MAX881REUB+T suitable for battery-powered applications? A: Yes, the MAX881REUB+T is commonly used in battery-powered applications due to its low quiescent current and efficient power conversion.
Q: Can the MAX881REUB+T provide a stable output voltage even with varying input voltages? A: Yes, the MAX881REUB+T features built-in voltage regulation circuitry that maintains a stable output voltage despite fluctuations in the input voltage.
Q: What is the typical efficiency of the MAX881REUB+T? A: The typical efficiency of the MAX881REUB+T is around 90%, making it an energy-efficient choice for various technical solutions.
Q: Are there any specific application notes or reference designs available for the MAX881REUB+T? A: Yes, Maxim Integrated provides application notes and reference designs on their website that can help users implement the MAX881REUB+T in their technical solutions effectively.