MAX8841ELT18+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Linear Regulator
• Package: 6-Pin Thin SOT23
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 1.8V
• Output Current: Up to 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Line Regulation: ±0.05%/V
• Load Regulation: ±0.15%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8841ELT18+T has the following pin configuration:

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1. IN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin
4. EN: Enable pin
5. BYP: Bypass capacitor pin
6. OUT: Output voltage pin

Functional Features

• Low dropout voltage for efficient power conversion
• Stable output voltage with low noise
• Built-in thermal shutdown protection
• Short-circuit current limit protection
• Low quiescent current for power-saving applications
• Fast transient response for dynamic load changes

Advantages

• Small package size allows for space-constrained designs
• Wide input voltage range enables compatibility with various power sources
• Low dropout voltage minimizes power dissipation
• Excellent line and load regulation for stable output voltage
• Robust protection features ensure device reliability

Disadvantages

• Limited output current may not be suitable for high-power applications
• Single fixed output voltage limits flexibility in certain designs

Working Principles

The MAX8841ELT18+T is a low dropout linear regulator that provides a stable output voltage of 1.8V from an input voltage range of 2.5V to 5.5V. It utilizes a PNP pass transistor to regulate the output voltage, ensuring a low dropout voltage and efficient power conversion.

The feedback pin (FB) is used to set the desired output voltage by connecting an external resistor divider network. The enable pin (EN) allows for easy on/off control of the regulator. The bypass capacitor pin (BYP) improves stability and reduces noise.

The device incorporates various protection features such as thermal shutdown and short-circuit current limit to safeguard against abnormal operating conditions and ensure device longevity.

Detailed Application Field Plans

The MAX8841ELT18+T is commonly used in battery-powered portable devices, such as smartphones, tablets, and wearable devices. Its low dropout voltage and low quiescent current make it ideal for power-sensitive applications where efficiency and battery life are crucial.

Additionally, it can be employed in industrial and automotive applications that require stable and regulated power supply, such as sensors, control systems, and automotive infotainment systems.

Detailed and Complete Alternative Models

• MAX8841ELT25+T: Output voltage of 2.5V
• MAX8841ELT33+T: Output voltage of 3.3V
• MAX8841ELT50+T: Output voltage of 5.0V

These alternative models offer different output voltage options while sharing similar characteristics and package options with the MAX8841ELT18+T.

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