MAX1698AEUB+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX1698AEUB+ is a highly efficient, step-up DC-DC converter designed for use in various electronic devices. It provides a regulated output voltage from a single-cell battery or other low-voltage power sources.

Characteristics: - High efficiency conversion - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent and overtemperature protection

Package: The MAX1698AEUB+ is available in a small 10-pin µMAX package, which allows for space-saving integration into compact electronic designs.

Essence: This IC serves as a power management solution, enabling the conversion of low input voltages to higher output voltages with high efficiency.

Packaging/Quantity: The MAX1698AEUB+ is typically sold in reels of 2500 units per reel.

Specifications

• Input Voltage Range: 1.8V to 5.5V
• Output Voltage Range: 2.5V to 5.5V
• Maximum Output Current: 100mA
• Quiescent Current: 12µA (typical)
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1698AEUB+ features the following pin configuration:

```

---

| | --| VIN VOUT |-- --| EN GND |-- --| FB SW |-- --| PG LX |-- |___________| ```

• VIN: Input Voltage
• VOUT: Output Voltage
• EN: Enable Pin
• FB: Feedback Pin
• SW: Switching Node
• PG: Power Good Indicator
• LX: Inductor Connection

Functional Features

1. High Efficiency Conversion: The MAX1698AEUB+ utilizes advanced switching techniques to achieve high efficiency, minimizing power losses during voltage conversion.

2. Low Quiescent Current: With a low quiescent current of only 12µA, the IC ensures minimal power consumption when in standby or idle mode.

3. Wide Input Voltage Range: The IC can accept input voltages ranging from 1.8V to 5.5V, making it compatible with various power sources.

4. Adjustable Output Voltage: The output voltage can be easily adjusted within the range of 2.5V to 5.5V, providing flexibility for different application requirements.

5. Overcurrent and Overtemperature Protection: The MAX1698AEUB+ incorporates built-in protection mechanisms to safeguard against overcurrent and overtemperature conditions, ensuring reliable operation and preventing damage to the device.

Advantages and Disadvantages

Advantages: - High efficiency conversion reduces power wastage. - Compact package allows for space-saving integration. - Wide input voltage range provides compatibility with various power sources. - Adjustable output voltage offers flexibility for different applications. - Built-in protection mechanisms enhance reliability.

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

Working Principles

The MAX1698AEUB+ operates as a step-up DC-DC converter. It uses a switching regulator topology to efficiently boost the input voltage to a higher regulated output voltage. The IC controls the switching of an internal power transistor to regulate the output voltage based on the feedback received from the FB pin. By adjusting the duty cycle of the switching signal, the desired output voltage is achieved.

Detailed Application Field Plans

The MAX1698AEUB+ finds applications in various electronic devices that require efficient voltage conversion from low-voltage power sources. Some potential application fields include: - Battery-powered portable devices - IoT devices - Wearable electronics - Medical devices - Industrial control systems

Detailed and Complete Alternative Models

1. MAX1698EUB+: Similar to MAX1698AEUB+, but with a fixed output voltage of 3.3V.
2. MAX1698REUB+: Similar to MAX1698AEUB+, but with a higher maximum output current of 200mA.
3. MAX1698SEUB+: Similar to MAX1698AEUB+, but with an extended input voltage range of 1.8V to 6.5V.

These alternative models offer variations in output voltage, maximum output current, and input voltage range to cater to different application requirements.

In conclusion, the MAX1698AEUB+ is a highly efficient step-up DC-DC converter that provides regulated output voltage from low-voltage power sources. With its compact package, wide input voltage range, and adjustable output voltage, it offers flexibility and reliability for various electronic applications.