MAX1817EUB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout linear regulator, adjustable output voltage, low quiescent current, thermal shutdown protection
• Package: µMAX® (8-pin microMAX package)
• Essence: The MAX1817EUB is a versatile voltage regulator IC that provides a stable and adjustable output voltage with low dropout voltage.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 12V
• Output Voltage Range: 1.25V to 11.5V
• Dropout Voltage: 120mV at 100mA load current
• Quiescent Current: 40µA (typical)
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1817EUB has the following pin configuration:

```

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| | --| VOUT | --| ADJ | --| GND | --| SHDN | --| VIN | --| BYPASS | --| FB | |___________| ```

• VOUT: Output Voltage
• ADJ: Adjustable Pin for setting the output voltage
• GND: Ground
• SHDN: Shutdown Pin for enabling/disabling the regulator
• VIN: Input Voltage
• BYPASS: Bypass Capacitor Pin
• FB: Feedback Pin for regulating the output voltage

Functional Features

• Adjustable output voltage allows flexibility in various applications.
• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• Low quiescent current minimizes power consumption during standby or idle states.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Versatile and adjustable output voltage range. - Low dropout voltage for efficient power conversion. - Low quiescent current for reduced power consumption. - Thermal shutdown protection ensures device safety.

Disadvantages: - Limited output current capacity (up to 100mA). - Requires external components for proper operation.

Working Principles

The MAX1817EUB is a low-dropout linear regulator that regulates the output voltage based on the feedback received from the FB pin. The ADJ pin allows the user to adjust the output voltage within the specified range. The SHDN pin enables or disables the regulator, providing control over its operation. The BYPASS pin is used to connect an external bypass capacitor for improved stability and noise reduction.

Detailed Application Field Plans

The MAX1817EUB can be used in various applications, including but not limited to: 1. Battery-powered devices requiring stable and adjustable voltage supply. 2. Portable electronic devices such as smartphones, tablets, and portable media players. 3. Industrial and automotive applications where low dropout voltage and thermal protection are crucial. 4. Embedded systems and microcontroller-based projects.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX1817EUB include: - LM1117: Adjustable Linear Voltage Regulator - LT1763: Low Dropout Linear Regulator - TPS7A47: Ultra-Low Noise LDO Regulator - MCP1700: CMOS Low Dropout Regulator

These alternative models provide comparable features and can be considered based on specific application requirements.

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