MAX8887EZK33+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Noise, High PSRR
• Package: SOT-23-5
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 3.3V
• Dropout Voltage: 120mV at 150mA
• Quiescent Current: 40µA
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Ripple Rejection Ratio: 70dB at 1kHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8887EZK33+T has a total of five pins:

1. GND: Ground pin.
2. IN: Input voltage pin.
3. EN: Enable pin for turning the regulator on/off.
4. BYP: Bypass capacitor connection pin.
5. OUT: Output voltage pin.

Functional Features

• Low dropout voltage allows efficient regulation even with small input-output differentials.
• Low noise output ensures clean power supply for sensitive components.
• High Power Supply Rejection Ratio (PSRR) minimizes the impact of input voltage fluctuations.
• Enable pin provides control over the regulator's operation.
• Bypass capacitor connection pin enhances stability and reduces noise.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient power conversion. - Low noise output ensures reliable performance in noise-sensitive applications. - High PSRR minimizes the impact of input voltage variations. - Small package size (SOT-23-5) facilitates space-constrained designs.

Disadvantages: - Limited output current capability (150mA). - Restricted input voltage range (2.5V to 6.5V).

Working Principles

The MAX8887EZK33+T is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from a resistive voltage divider connected to the output. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in load and input voltage.

Detailed Application Field Plans

The MAX8887EZK33+T is suitable for various applications, including but not limited to:

1. Battery-powered devices: Provides stable power supply for portable electronics such as smartphones, tablets, and wearables.
2. Industrial equipment: Ensures reliable voltage regulation in industrial control systems, sensors, and instrumentation.
3. Automotive electronics: Supports voltage regulation in automotive modules, infotainment systems, and lighting applications.
4. Communication devices: Enables consistent power delivery in routers, modems, and wireless communication devices.
5. Consumer electronics: Suitable for use in audio/video equipment, gaming consoles, and home automation systems.

Detailed and Complete Alternative Models

1. LM1117-3.3: Low dropout voltage regulator with similar specifications and package.
2. LT1763-3.3: High PSRR linear regulator with adjustable output voltage.
3. TPS79633: Low noise, low dropout regulator with higher output current capability.

(Note: This list is not exhaustive and other alternative models may exist.)

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