MAX1921EUT30+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
• Package: SOT23-6
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 3.0V
• Output Current: Up to 150mA
• Quiescent Current: 9µA (typical)
• Dropout Voltage: 120mV at 100mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1921EUT30+T is a six-pin device with the following pin configuration:

1. GND: Ground connection
2. IN: Input voltage supply
3. EN: Enable pin for turning the regulator on/off
4. FB: Feedback pin for setting the output voltage
5. OUT: Regulated output voltage
6. BYP: Bypass capacitor pin for improved stability

Functional Features

• High efficiency voltage regulation
• Low quiescent current for power-saving applications
• Fast transient response for stable operation
• Built-in thermal shutdown protection
• Short-circuit and overcurrent protection

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Small package size allows for space-constrained designs - Wide input voltage range provides flexibility in power supply options - Low quiescent current prolongs battery life in portable devices

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

Working Principles

The MAX1921EUT30+T is a voltage regulator IC that converts an input voltage within the range of 2.7V to 5.5V into a stable 3.0V output voltage. It achieves this by utilizing a feedback mechanism that adjusts the internal circuitry to maintain the desired output voltage despite variations in the input voltage and load conditions.

The regulator operates in a low quiescent current mode, consuming only 9µA of current when enabled but not actively supplying power. This feature makes it suitable for battery-powered devices where power efficiency is crucial.

Detailed Application Field Plans

The MAX1921EUT30+T is commonly used in various applications, including but not limited to:

1. Portable electronic devices: Provides regulated power supply for microcontrollers, sensors, and other low-power components.
2. Battery-powered systems: Extends battery life by minimizing power consumption during standby or idle periods.
3. IoT devices: Enables efficient power management in connected devices with limited power sources.
4. Wearable technology: Offers a compact solution for powering wearable devices such as smartwatches and fitness trackers.
5. Industrial control systems: Provides stable voltage regulation for control circuits and sensors in industrial automation applications.

Detailed and Complete Alternative Models

1. MAX1921ESA+: Similar specifications and features, available in an 8-pin SOIC package.
2. MAX1921ETC+: Higher output current capability (up to 300mA), available in a 12-pin TQFN package.
3. MAX1921XETL+: Extended temperature range (-40°C to +125°C), available in a 6-pin SOT23 package.

These alternative models offer similar functionality to the MAX1921EUT30+T but may have different package options, output current capabilities, or operating temperature ranges to suit specific application requirements.

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