MAX1821EUB+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Low-power consumption
• Package: µMAX®
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel / 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.25V to 5.5V
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1821EUB+T has the following pin configuration:

1. GND (Ground)
2. FB (Feedback)
3. EN (Enable)
4. VOUT (Output Voltage)
5. VIN (Input Voltage)

Functional Features

• High efficiency with low power consumption
• Wide input voltage range for versatile applications
• Adjustable output voltage through feedback pin
• Enable pin for easy on/off control
• Thermal shutdown protection
• Short-circuit current limit

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power dissipation
• Wide input voltage range allows for flexibility in power source selection
• Adjustable output voltage provides customization options
• Enable pin simplifies power management control
• Built-in protection features enhance reliability

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Dropout voltage may affect performance in low-input voltage scenarios

Working Principles

The MAX1821EUB+T is a voltage regulator IC that converts an input voltage within the range of 2.5V to 5.5V into a regulated output voltage between 1.25V and 5.5V. It achieves high efficiency by utilizing a low-dropout (LDO) architecture, minimizing power dissipation.

The feedback pin allows the user to adjust the output voltage according to their specific requirements. The enable pin enables easy on/off control of the regulator, providing additional power management flexibility.

The IC incorporates thermal shutdown protection, which safeguards against excessive temperature. It also includes a short-circuit current limit feature that protects the device from damage in case of a short circuit.

Detailed Application Field Plans

The MAX1821EUB+T is suitable for various applications where efficient voltage regulation is required. Some potential application fields include:

1. Battery-powered devices: The wide input voltage range and low quiescent current make it ideal for portable electronics such as smartphones, tablets, and wearable devices.
2. IoT (Internet of Things) devices: With its compact package and low-power consumption, the IC can be used in IoT sensors, smart home devices, and other connected devices.
3. Industrial equipment: The voltage regulator can be employed in industrial automation systems, control panels, and instrumentation devices, ensuring stable and reliable power supply.
4. Automotive electronics: The IC's operating temperature range and protection features make it suitable for automotive applications like infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

• MAX1820EUB+T
• MAX1822EUB+T
• MAX1823EUB+T
• MAX1824EUB+T
• MAX1825EUB+T
• MAX1826EUB+T
• MAX1827EUB+T
• MAX1828EUB+T
• MAX1829EUB+T

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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