MAX8887EZK28+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX8887EZK28+ belongs to the category of voltage regulators.

Use

It is commonly used to regulate voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Maximum Output Current: 150mA
• Low Dropout Voltage: 120mV at 100mA
• Low Quiescent Current: 40µA (typical)
• Package Type: SOT23-5
• Operating Temperature Range: -40°C to +85°C

Package and Quantity

MAX8887EZK28+ is available in a SOT23-5 package. It is typically sold in reels or tubes containing a specific quantity, such as 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Maximum Output Current: 150mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.15% (typical)
• Ripple Rejection: 70dB (typical)
• Shutdown Current: 0.1µA (typical)

Pin Configuration

The MAX8887EZK28+ has the following pin configuration:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: EN (Enable) Pin 4: BYP (Bypass) Pin 5: VOUT (Output Voltage)

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• Low quiescent current minimizes power consumption in standby or idle modes.
• Excellent line and load regulation provide stable output voltage under varying conditions.
• High ripple rejection ratio reduces the impact of noise on the output voltage.
• Shutdown mode allows for further reduction in power consumption when the regulator is not needed.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for compatibility with various power sources.
• Small package size enables space-saving integration into compact electronic devices.
• Low dropout voltage ensures efficient power conversion.
• Low quiescent current minimizes power consumption in standby mode.

Disadvantages

• Maximum output current of 150mA may limit its use in high-power applications.
• Limited output voltage range may not be suitable for all voltage regulation requirements.

Working Principles

The MAX8887EZK28+ is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage 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 input voltage and load conditions.

Detailed Application Field Plans

The MAX8887EZK28+ can be used in various applications, including but not limited to: 1. Battery-powered devices: Portable electronics, handheld instruments, and wireless communication devices. 2. Consumer electronics: Smartphones, tablets, digital cameras, and portable media players. 3. Industrial equipment: Sensors, control systems, and measurement devices. 4. Automotive electronics: Infotainment systems, navigation systems, and lighting controls. 5. Medical devices: Patient monitoring systems, diagnostic equipment, and wearable health trackers.

Detailed and Complete Alternative Models

1. MAX8887EZK28-T: Similar to MAX8887EZK28+, but with a different package type (TSOT23-5).
2. MAX8887EZK28-TG: Similar to MAX8887EZK28-T, but with a different temperature range (-40°C to +125°C).
3. MAX8887EZK28-W: Similar to MAX8887EZK28+, but with a different package type (WLP-6).

These alternative models offer similar functionality and specifications, providing options for different application requirements.

In conclusion, the MAX8887EZK28+ is a voltage regulator that offers efficient voltage regulation, low power consumption, and stable output voltage. Its small package size and wide input voltage range make it suitable for various electronic applications. However, its limited output current and voltage range should be considered when selecting an appropriate voltage regulator for specific requirements.