MAX8868ETEV+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Small package size - Low quiescent current

Package: TDFN-EP (Thin Dual Flat No-Lead Exposed Pad)

Essence: The MAX8868ETEV+ is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The MAX8868ETEV+ is available in tape and reel packaging, with 250 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to 3.3V
• Maximum Output Current: 500mA
• Dropout Voltage: 120mV at 300mA
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8868ETEV+ has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion.
• Wide input voltage range allows compatibility with various power sources.
• Enable pin provides control over the regulator's operation.
• Feedback pin enables precise output voltage regulation.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - High efficiency results in minimal power loss. - Small package size saves board space. - Low quiescent current extends battery life. - Wide input voltage range enhances versatility.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Dropout voltage may affect performance in low input voltage scenarios.

Working Principles

The MAX8868ETEV+ is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage. The enable pin (EN) allows the user to control the regulator's operation, while thermal shutdown protection ensures safe operation under high temperature conditions.

Detailed Application Field Plans

The MAX8868ETEV+ can be used in various electronic devices that require a stable and regulated power supply. Some potential application fields include: 1. Mobile devices 2. Portable audio players 3. Wearable devices 4. IoT (Internet of Things) devices 5. Battery-powered systems

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package options.
2. LT1763: Offers higher maximum output current and lower dropout voltage.
3. TPS7A4700: Provides adjustable output voltage and higher efficiency.
4. ADP3339: Features low quiescent current and wide input voltage range.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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