MAX8877EUK26+T

Product Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: Low dropout, low quiescent current, high output current capability
• Package: SOT23-5
• Essence: Step-down linear regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.6V
• Output Current: Up to 500mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8877EUK26+T has a total of five pins:

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

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 output current capability enables the device to power a wide range of loads.
• Built-in thermal shutdown and current limit protection enhance reliability.

Advantages and Disadvantages

Advantages

• Small package size makes it suitable for space-constrained applications.
• Wide input voltage range provides flexibility in various power supply designs.
• Excellent line and load regulation characteristics ensure stable output voltage.
• Low dropout voltage minimizes power dissipation and extends battery life.

Disadvantages

• Limited output current may not be sufficient for high-power applications.
• SOT23-5 package may require careful PCB layout to manage heat dissipation.

Working Principles

The MAX8877EUK26+T is a step-down linear regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with an internal reference voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The enable pin (EN) allows the user to control the regulator's on/off state.

Detailed Application Field Plans

The MAX8877EUK26+T finds applications in various electronic devices, including:

1. Battery-powered portable devices such as smartphones, tablets, and digital cameras.
2. Wireless communication modules and IoT devices.
3. Industrial and automotive systems requiring low dropout voltage regulation.
4. Wearable devices and health monitoring equipment.
5. Consumer electronics like MP3 players and handheld gaming consoles.

Detailed and Complete Alternative Models

1. MAX8887EUK26+T: Similar to MAX8877EUK26+T but with a fixed output voltage of 2.6V.
2. MAX8867EUK26+T: Step-down linear regulator with adjustable output voltage.
3. MAX8897EUK26+T: Higher output current capability (up to 1A) variant of MAX8877EUK26+T.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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