MAX8867EZK25+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Quiescent Current
• Package: SOT23-5
• Essence: Regulates input voltage to a stable output voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.5V
• Dropout Voltage: 120mV at 150mA
• Quiescent Current: 40µA
• Load Regulation: ±0.1%
• Line Regulation: ±0.05%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8867EZK25+T has a total of five pins arranged as follows:

1. GND: Ground pin
2. IN: Input voltage pin
3. EN: Enable pin (active high)
4. BYP: Bypass capacitor pin
5. OUT: Output voltage pin

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• Low quiescent current ensures minimal power consumption during standby or idle modes.
• Enable pin provides control over the regulator's operation, allowing for power-saving features.
• Bypass capacitor pin improves stability and reduces noise in the output voltage.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation in low-power applications. - Low quiescent current minimizes power consumption, extending battery life. - Enable pin offers flexibility in controlling the regulator's operation. - Small package size (SOT23-5) allows for space-constrained designs.

Disadvantages: - Fixed output voltage limits versatility in certain applications requiring adjustable voltages. - Limited input voltage range may not be suitable for all power supply scenarios.

Working Principles

The MAX8867EZK25+T is a low dropout linear voltage regulator. It regulates the input voltage to a stable output voltage of 2.5V. The dropout voltage is kept low, allowing efficient regulation even when the input voltage is close to the desired output voltage. The quiescent current is also minimized, reducing power consumption during standby or idle modes.

The regulator can be enabled or disabled using the EN pin, providing control over its operation. When disabled, the regulator enters a low-power state, further conserving energy. The BYP pin is used to connect an external bypass capacitor, improving stability and reducing noise in the output voltage.

Detailed Application Field Plans

The MAX8867EZK25+T is commonly used in various applications requiring a stable 2.5V power supply. Some typical application fields include:

1. Battery-Powered Devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the low dropout voltage and low quiescent current, extending battery life.
2. IoT Devices: Internet of Things (IoT) sensors and modules often require a regulated 2.5V supply, making this regulator suitable for powering these devices.
3. Embedded Systems: Microcontrollers, sensors, and other components in embedded systems often rely on a stable voltage source, which can be provided by the MAX8867EZK25+T.

Detailed and Complete Alternative Models

1. MAX8867EZK33+T: Similar to MAX8867EZK25+T but with a fixed output voltage of 3.3V.
2. MAX8867EZK18+T: Similar to MAX8867EZK25+T but with a fixed output voltage of 1.8V.
3. MAX8867EZK50+T: Similar to MAX8867EZK25+T but with a fixed output voltage of 5.0V.

These alternative models offer different fixed output voltages, allowing flexibility in various applications.

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