MAX6474TA30AD3+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout, high-accuracy, low-power
• Package: 8-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Provides regulated output voltage with low dropout voltage and high accuracy
• Packaging/Quantity: Tape and reel packaging, quantity varies based on order size

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 3.0V
• Dropout Voltage: 120mV at 150mA load current
• Line Regulation: ±0.02% typical
• Load Regulation: ±0.05% typical
• Quiescent Current: 40µA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground): Connected to the ground reference of the system
2. IN (Input): Connects to the input voltage source
3. EN (Enable): Active-high enable pin for turning the regulator on/off
4. BYP (Bypass): Connects to an external capacitor for stability enhancement
5. FB (Feedback): Connects to a resistive voltage divider for setting the output voltage
6. NC (No Connection): Not internally connected, can be left unconnected
7. OUT (Output): Provides the regulated output voltage
8. VCC (Voltage Common Collector): Connects to the positive supply voltage

Functional Features

• Low-dropout voltage: The MAX6474TA30AD3+T has a low dropout voltage of only 120mV at a load current of 150mA, ensuring efficient power conversion.
• High accuracy: With line and load regulation of ±0.02% and ±0.05% respectively, the regulator provides a stable and precise output voltage.
• Low-power operation: The quiescent current of 40µA ensures minimal power consumption, making it suitable for battery-powered applications.

Advantages

• Compact package: The 8-pin TDFN package offers a small footprint, allowing for space-efficient designs.
• Wide input voltage range: The regulator can operate within a wide input voltage range of 2.5V to 6.5V, accommodating various power sources.
• Excellent line and load regulation: The MAX6474TA30AD3+T maintains a highly regulated output voltage even under varying input conditions and load changes.

Disadvantages

• Limited output voltage options: The MAX6474TA30AD3+T is specifically designed for a fixed output voltage of 3.0V, limiting its flexibility in applications requiring different output voltages.
• No thermal protection: This regulator does not include built-in thermal protection, so external measures may be required to prevent overheating.

Working Principles

The MAX6474TA30AD3+T is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB pin) with a reference voltage to adjust the pass transistor's resistance. This feedback loop ensures that the output voltage remains constant despite variations in the input voltage or load conditions.

Detailed Application Field Plans

• Battery-powered devices: The low dropout voltage and low-power operation make the MAX6474TA30AD3+T suitable for portable electronics such as smartphones, tablets, and wearable devices.
• Industrial automation: The regulator can be used in industrial control systems, sensors, and actuators that require stable and accurate power supply.
• Automotive electronics: With its wide input voltage range and compact package, the MAX6474TA30AD3+T can be employed in automotive applications such as infotainment systems, lighting controls, and engine management.

Detailed and Complete Alternative Models

• MAX6474TA30BD3+T: Similar to MAX6474TA30AD3+T, but with a different package (6-pin SOT23) and slightly different specifications.
• MAX6474TA30CD3+T: Another variant with a 5-pin SC70 package, suitable for space-constrained designs.
• MAX6474TA30DD3+T: This model offers an adjustable output voltage, allowing flexibility in setting the desired voltage level.

(Note: The above alternative models are examples and not an exhaustive list.)

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