MAX6461XR29+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: SOT23-5
• Essence: Regulates input voltage to a fixed output voltage
• Packaging/Quantity: Tape and Reel, 3000 units 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: ±0.05%
• Line Regulation: ±0.02%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6461XR29+T has a total of five pins arranged as follows:

1. GND (Ground): Connected to the ground reference of the circuit.
2. IN (Input): Receives the input voltage to be regulated.
3. EN (Enable): Controls the enable/disable state of the regulator.
4. BYP (Bypass): Connects an external capacitor for stability enhancement.
5. OUT (Output): Provides the regulated output voltage.

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High accuracy guarantees precise output voltage regulation.
• Low quiescent current minimizes power consumption in standby mode.
• Enable pin allows for easy on/off control of the regulator.
• Bypass pin enables stability improvement through external capacitor connection.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High accuracy provides precise voltage regulation. - Low quiescent current reduces power consumption. - Enable pin allows for flexible control. - Bypass pin enhances stability.

Disadvantages: - Limited output voltage options. - SOT23-5 package may require surface mount soldering expertise.

Working Principles

The MAX6461XR29+T is a voltage regulator that operates by comparing the input voltage with a reference voltage. It adjusts the pass transistor's resistance to maintain a constant output voltage, regardless of variations in the input voltage or load conditions. The enable pin allows for easy on/off control, while the bypass pin enhances stability by connecting an external capacitor.

Detailed Application Field Plans

The MAX6461XR29+T finds applications in various fields, including:

1. Portable Electronics: Provides regulated power supply for battery-powered devices such as smartphones, tablets, and portable media players.
2. Industrial Automation: Ensures stable voltage levels for sensors, actuators, and control systems in industrial automation equipment.
3. Automotive Electronics: Regulates voltage for automotive components like infotainment systems, navigation units, and engine control modules.
4. Medical Devices: Offers precise voltage regulation for medical instruments, patient monitoring systems, and diagnostic equipment.
5. IoT Devices: Provides reliable power supply for Internet of Things (IoT) devices, including smart home appliances, wearables, and environmental sensors.

Detailed and Complete Alternative Models

1. LM1117-2.9: Low dropout voltage regulator with fixed 2.9V output voltage. Available in various packages.
2. LT1763-2.9: High accuracy LDO regulator with low quiescent current and adjustable output voltage. Comes in different package options.
3. TPS7A4901: Ultra-low dropout voltage regulator with fixed 2.9V output voltage. Suitable for space-constrained applications.

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

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