MAX6426UK29+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Fixed Output Voltage
• Package: SOT-23
• Essence: Regulates input voltage to a fixed output voltage
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 2.9V
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Load Regulation: ±0.1%
• Line Regulation: ±0.05%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6426UK29+T has the following pin configuration:

1. GND (Ground)
2. IN (Input Voltage)
3. EN (Enable)
4. OUT (Output Voltage)

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output voltage differentials.
• Fixed output voltage ensures a stable power supply for connected devices.
• Enable pin provides control over the regulator's operation.
• Low quiescent current minimizes power consumption in standby mode.

Advantages and Disadvantages

Advantages: - Small package size (SOT-23) enables space-saving designs. - Wide input voltage range accommodates various power sources. - Excellent load and line regulation ensure stable output voltage.

Disadvantages: - Limited output voltage options restrict flexibility in certain applications. - Higher dropout voltage compared to some alternative models may result in lower efficiency.

Working Principles

The MAX6426UK29+T is a low dropout voltage regulator that maintains a fixed output voltage of 2.9V regardless of changes in the input voltage. It achieves this by utilizing a pass transistor that adjusts the voltage difference between the input and output to maintain a constant output voltage. The enable pin allows for control over the regulator's operation, enabling power-saving modes when necessary.

Detailed Application Field Plans

The MAX6426UK29+T is commonly used in applications where a stable 2.9V power supply is required. Some typical application fields include:

1. Battery-powered devices: Provides regulated power to microcontrollers, sensors, and other low-power components.
2. Portable audio devices: Ensures consistent voltage for audio amplifiers, DACs, and other audio processing circuits.
3. Industrial control systems: Used as a voltage reference for analog-to-digital converters, signal conditioning circuits, and control modules.

Detailed and Complete Alternative Models

1. MAX6425UK29+T: Similar to MAX6426UK29+T but with a fixed output voltage of 2.8V.
2. MAX6427UK29+T: Similar to MAX6426UK29+T but with a fixed output voltage of 3.0V.
3. LT1763CS8-2.9#PBF: Low dropout voltage regulator with a fixed output voltage of 2.9V and a different package (SO-8).

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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