MAX8891EXK26+T

Product Overview

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

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.8V to 3.3V
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8891EXK26+T has a total of five pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin for turning the regulator on/off
4. FB: Feedback pin for setting the output voltage
5. VOUT: Output voltage pin

Functional Features

• High efficiency voltage regulation for low power applications
• Low dropout voltage allows for efficient power conversion even with small input-output voltage differentials
• Enable pin provides control over the regulator's operation
• Feedback pin allows for precise output voltage setting

Advantages and Disadvantages

Advantages: - High efficiency power management solution - Small package size enables space-constrained designs - Wide input voltage range allows for versatile applications - Low dropout voltage ensures efficient power conversion

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Requires external components for proper operation

Working Principles

The MAX8891EXK26+T is a voltage regulator IC that converts an input voltage within the range of 2.7V to 5.5V into a regulated output voltage between 1.8V and 3.3V. It achieves high efficiency power conversion by minimizing the dropout voltage, which is the minimum voltage difference required for the regulator to operate correctly.

The regulator can be enabled or disabled using the EN pin, providing control over its operation. The output voltage is set using the FB pin, allowing for precise voltage regulation.

Detailed Application Field Plans

The MAX8891EXK26+T is commonly used in various low-power applications where efficient voltage regulation is required. Some potential application fields include:

1. Battery-powered devices: The low dropout voltage and wide input voltage range make it suitable for battery-powered devices with varying voltage levels.
2. Portable electronics: Due to its small package size, the MAX8891EXK26+T can be integrated into compact portable electronic devices such as smartphones, tablets, and wearable devices.
3. IoT devices: With the increasing popularity of Internet of Things (IoT) devices, the MAX8891EXK26+T can provide efficient power management for sensors, wireless modules, and other low-power IoT components.

Detailed and Complete Alternative Models

• MAX8890EXK26+T: Similar to MAX8891EXK26+T but with a different output voltage range (1.2V to 3.3V).
• MAX8892EXK26+T: Higher maximum output current (300mA) compared to MAX8891EXK26+T.
• MAX8893EXK26+T: Lower quiescent current (20µA) and wider input voltage range (1.8V to 5.5V) than MAX8891EXK26+T.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option for their specific application requirements.

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