MAX1898EUB42+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: µMAX® (SOT-23), 10-Pin
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 4.2V
• Output Current: Up to 100mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground)
2. EN (Enable)
3. FB (Feedback)
4. VOUT (Output Voltage)
5. VOUT (Output Voltage)
6. VOUT (Output Voltage)
7. VOUT (Output Voltage)
8. VIN (Input Voltage)
9. VIN (Input Voltage)
10. VIN (Input Voltage)

Functional Features

• Low Dropout Voltage for Efficient Power Conversion
• Enable Pin for On/Off Control
• Overcurrent and Thermal Protection
• Stable Output Voltage with Minimal Ripple

Advantages and Disadvantages

Advantages: - High Efficiency - Low Power Consumption - Small Package Size - Wide Input Voltage Range

Disadvantages: - Limited Output Current (up to 100mA) - Sensitive to Input Voltage Variations

Working Principles

The MAX1898EUB42+T is a voltage regulator IC designed for power management applications. It operates by taking an input voltage within the range of 2.7V to 5.5V and converting it into a stable output voltage of 4.2V. The IC achieves high efficiency and low power consumption, making it suitable for battery-powered devices.

The regulator maintains a stable output voltage by using a feedback mechanism. The FB pin is connected to an external resistor divider network that sets the desired output voltage. The EN pin allows for on/off control of the regulator, providing flexibility in power management.

To ensure safe operation, the MAX1898EUB42+T incorporates overcurrent and thermal protection features. These protect the IC from excessive current or temperature, preventing damage to the device.

Detailed Application Field Plans

The MAX1898EUB42+T finds applications in various fields, including:

1. Portable Electronics: It can be used in smartphones, tablets, and portable media players to regulate the voltage for different components.
2. IoT Devices: The IC is suitable for low-power IoT devices that require efficient power management.
3. Wearable Devices: It can be utilized in smartwatches, fitness trackers, and other wearable gadgets to maintain a stable power supply.
4. Medical Devices: The voltage regulator can be employed in medical equipment such as glucose meters and blood pressure monitors.
5. Industrial Automation: It finds use in industrial control systems, sensors, and actuators that require reliable power regulation.

Detailed and Complete Alternative Models

• MAX1898ESA+: 5V Output Voltage, SOT-23 Package
• MAX1898ETB+: 4.35V Output Voltage, Thin QFN Package
• MAX1898ETJ+: 3.3V Output Voltage, Thin QFN Package
• MAX1898ETL+: 2.5V Output Voltage, Thin QFN Package
• MAX1898ETM+: 1.8V Output Voltage, Thin QFN Package

These alternative models provide different output voltages and package options to suit specific application requirements.

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