MAX6473TA18BD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout (LDO) linear regulator, fixed output voltage
• Package: 8-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Provides a stable and regulated output voltage for electronic devices
• Packaging/Quantity: Tape and reel packaging, quantity varies based on order size

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V
• Maximum Output Current: 250mA
• Dropout Voltage: 120mV at 100mA
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.05%/mA
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6473TA18BD3+T has the following pin configuration:

1. GND (Ground): Connected to the ground reference of the circuit.
2. IN (Input): Connects to the input voltage source.
3. EN (Enable): Controls the enable/disable function of the regulator.
4. BYP (Bypass): Connects an external capacitor for stability.
5. FB (Feedback): Provides feedback to regulate the output voltage.
6. NC (No Connection): Not internally connected, can be left unconnected.
7. OUT (Output): Provides the regulated output voltage.
8. VOUT (Voltage Output): Connects to the load requiring regulated voltage.

Functional Features

• Low dropout voltage: The MAX6473TA18BD3+T has a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Fixed output voltage: The regulator provides a fixed output voltage of 1.8V, making it suitable for applications requiring a stable voltage source.
• Enable/disable function: The EN pin allows the user to enable or disable the regulator as needed, conserving power when not in use.
• Bypass capacitor support: The BYP pin enables the connection of an external capacitor for improved stability and noise reduction.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - Fixed output voltage provides stability for electronic devices. - Enable/disable function allows for power conservation. - Bypass capacitor support improves stability and reduces noise.

Disadvantages: - Limited maximum output current of 250mA may not be sufficient for high-power applications. - Narrow input voltage range of 2.5V to 6.5V may limit compatibility with certain systems.

Working Principles

The MAX6473TA18BD3+T is a low-dropout linear regulator that operates by comparing the feedback voltage (FB) with a reference voltage. It adjusts the pass transistor to maintain a constant output voltage regardless of changes in the input voltage or load conditions. The enable (EN) pin controls the on/off state of the regulator, allowing the user to conserve power when the regulator is not required.

Detailed Application Field Plans

The MAX6473TA18BD3+T is commonly used in various electronic devices and systems that require a stable and regulated voltage supply. Some application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the low dropout voltage and fixed output voltage of the MAX6473TA18BD3+T.
2. Industrial control systems: The regulator can be used in industrial automation, process control, and instrumentation systems to provide reliable voltage regulation.
3. Automotive electronics: The MAX6473TA18BD3+T finds applications in automotive systems, including infotainment systems, navigation devices, and engine control units.
4. IoT (Internet of Things) devices: The regulator is suitable for low-power IoT devices that require a stable voltage source for efficient operation.

Detailed and Complete Alternative Models

1. MAX6473TA18BD2+T: Similar to the MAX6473TA18BD3+T, but with a fixed output voltage of 1.8V and a different pin configuration.
2. MAX6473TA18BD4+T: Offers a fixed output voltage of 1.8V, but with a higher maximum output current of 500mA.
3. MAX6473TA25BD3+T: Provides a fixed output voltage of 2.5V, suitable for applications requiring a different voltage level.
4. MAX6473TA33BD3+T: Offers a fixed output voltage of 3.3V, catering to devices that require a higher voltage level.

These alternative models provide similar functionality with slight variations in output voltage, maximum output current, or pin configuration, allowing users to choose the most suitable option for their specific requirements.