MAX8877EZK28+TGF4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, small package size
• Package: SOT23-5
• Essence: Power management IC
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.8V
• Output Current: Up to 500mA
• Dropout Voltage: 120mV at 500mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8877EZK28+TGF4 has a total of five pins:

1. VIN - Input voltage pin
2. GND - Ground pin
3. EN - Enable pin for turning the regulator on/off
4. FB - Feedback pin for setting the output voltage
5. VOUT - Output voltage pin

Functional Features

• High efficiency voltage regulation
• Low dropout voltage for improved power efficiency
• Small package size for space-constrained applications
• Thermal shutdown protection
• Short-circuit current limiting
• Low quiescent current for power-saving operation

Advantages and Disadvantages

Advantages

• High efficiency ensures optimal power usage
• Low dropout voltage minimizes power loss
• Small package size allows for compact designs
• Thermal shutdown protection prevents damage from overheating
• Short-circuit current limiting protects the circuitry
• Low quiescent current extends battery life

Disadvantages

• Limited output current capacity (up to 500mA)
• Input voltage range restricted to 2.5V to 6.5V

Working Principles

The MAX8877EZK28+TGF4 is a voltage regulator IC that takes an input voltage within the range of 2.5V to 6.5V and provides a regulated output voltage of 2.8V. It achieves high efficiency by minimizing the dropout voltage, which is the difference between the input and output voltages.

The regulator uses a feedback mechanism through the FB pin to adjust the output voltage accurately. It also incorporates thermal shutdown protection to prevent damage due to excessive heat. In case of a short circuit, the device limits the current to protect the circuitry.

The low quiescent current ensures minimal power consumption when the regulator is in standby or idle mode, making it suitable for battery-powered applications.

Detailed Application Field Plans

The MAX8877EZK28+TGF4 is commonly used in various electronic devices and systems where a stable and regulated voltage supply is required. Some typical application fields include:

1. Mobile devices: Smartphones, tablets, portable media players
2. Wearable electronics: Smartwatches, fitness trackers
3. IoT devices: Sensors, wireless modules
4. Battery-powered systems: Portable medical devices, handheld instruments
5. Automotive electronics: Infotainment systems, navigation devices

Detailed and Complete Alternative Models

1. MAX8877EZK28+TGF3: Similar to MAX8877EZK28+TGF4 but with a different package (SOT23-6).
2. MAX8877EZK28+TGF5: Higher output voltage variant (2.85V) with the same specifications.
3. MAX8877EZK28+TGF6: Lower output voltage variant (2.75V) with the same specifications.

These alternative models offer similar functionality and characteristics, providing flexibility for different design requirements.

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