MAX6348UR33+T

Product Overview

• Category: Voltage Regulator
• Use: Provides a regulated output voltage for electronic devices
• Characteristics: Low dropout, low quiescent current, high accuracy
• Package: SOT23-3
• Essence: Integrated circuit voltage regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 3.3V
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 5µA (typical)
• Line Regulation: 0.02%/V
• Load Regulation: 0.1%/mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6348UR33+T has three pins arranged as follows:

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Pin 1: GND (Ground) Pin 2: VOUT (Output Voltage) Pin 3: VIN (Input Voltage)

Functional Features

• Low dropout voltage allows efficient regulation even with small input-output differentials.
• Low quiescent current ensures minimal power consumption during standby or idle modes.
• High accuracy provides precise output voltage regulation.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Small package size enables space-saving integration into compact electronic devices. - Wide input voltage range allows compatibility with various power sources. - Excellent line and load regulation ensure stable output voltage under varying conditions.

Disadvantages: - Limited output current capability may not be suitable for high-power applications. - Sensitive to input voltage fluctuations, requiring additional filtering components in some cases.

Working Principles

The MAX6348UR33+T is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The dropout voltage is minimized by using a low dropout (LDO) design, allowing efficient regulation even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The MAX6348UR33+T is commonly used in various electronic devices that require a stable and regulated power supply. Some typical applications include:

1. Battery-powered devices: Provides a constant voltage for microcontrollers, sensors, and other low-power components.
2. Portable audio players: Ensures consistent power supply for audio amplifiers and digital signal processors.
3. IoT devices: Regulates voltage for wireless modules, sensors, and microcontrollers in Internet of Things applications.
4. Automotive electronics: Stabilizes voltage for automotive sensors, infotainment systems, and control units.

Detailed and Complete Alternative Models

1. LM1117-3.3: Similar specifications and pin configuration, available in different package options.
2. LT1763-3.3: Higher output current capability, lower dropout voltage, and better line/load regulation.
3. MCP1703-3302E: Low quiescent current, wide input voltage range, and thermal shutdown protection.

These alternative models offer similar functionality and can be considered as substitutes for the MAX6348UR33+T depending on specific requirements.

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