MAX8891EXK45+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • High efficiency
  • Low dropout voltage
  • Small package size
• Package: SOT23-5
• Essence: Power management IC
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 4.5V
• Output Current: Up to 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA (typical)

Detailed Pin Configuration

The MAX8891EXK45+T has a total of five pins arranged as follows:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: EN (Enable) Pin 4: BYP (Bypass Capacitor) Pin 5: VOUT (Output Voltage)

Functional Features

• Low dropout voltage ensures efficient power conversion.
• Enable pin allows for easy on/off control.
• Bypass capacitor pin improves stability and noise performance.
• Small package size enables space-saving designs.

Advantages

• High efficiency results in reduced power consumption.
• Low dropout voltage minimizes wasted energy.
• Small package size is ideal for compact electronic devices.
• Enable pin provides flexibility in power management.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Fixed output voltage may not meet the requirements of all designs.

Working Principles

The MAX8891EXK45+T is a voltage regulator that converts an input voltage within the range of 2.7V to 5.5V to a fixed output voltage of 4.5V. It achieves this by utilizing internal circuitry that regulates the voltage and minimizes dropout voltage. The enable pin allows the user to control the regulator's operation, while the bypass capacitor pin enhances stability and reduces noise.

Detailed Application Field Plans

The MAX8891EXK45+T is commonly used in various battery-powered electronic devices, such as smartphones, tablets, portable media players, and wearable devices. Its small package size and low power consumption make it suitable for space-constrained applications where efficiency is crucial.

Detailed and Complete Alternative Models

• MAX8890EXK33+T: Output voltage of 3.3V, otherwise similar specifications.
• MAX8892EXK50+T: Output voltage of 5.0V, otherwise similar specifications.
• MAX8893EXK25+T: Output voltage of 2.5V, otherwise similar specifications.

These alternative models provide different output voltage options while maintaining similar characteristics and functionality to the MAX8891EXK45+T.

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