MAX1694EUB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low-Power, Step-Up DC-DC Converter
• Package: 10-pin µMAX®
• Essence: Efficient power conversion for portable devices
• Packaging/Quantity: Tube packaging, 1000 units per tube

Specifications

• Input Voltage Range: 2.6V to 5.5V
• Output Voltage Range: Adjustable from 2.7V to 5.5V
• Maximum Output Current: 200mA
• Efficiency: Up to 90%
• Switching Frequency: 1MHz
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. LX: Inductor connection pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the converter on/off
6. VOUT: Output voltage pin
7. SW: Switching node connection pin
8. PGND: Power ground pin
9. SS/TR: Soft-start and current limit programming pin
10. BST: Boost capacitor connection pin

Functional Features

• Low-power step-up DC-DC converter
• High efficiency for extended battery life
• Wide input voltage range for versatile applications
• Adjustable output voltage for flexibility
• Integrated soft-start and current limit functions
• Thermal shutdown protection
• Small package size for space-constrained designs

Advantages

• Compact and lightweight design
• High efficiency reduces power consumption
• Wide input voltage range allows for compatibility with various power sources
• Adjustable output voltage suits different device requirements
• Integrated protection features enhance reliability
• Easy to use and integrate into existing circuits

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires external components for proper operation
• Higher cost compared to non-integrated solutions

Working Principles

The MAX1694EUB is a step-up DC-DC converter that efficiently converts a low input voltage to a higher output voltage. It utilizes a switching regulator topology to achieve high efficiency and minimize power losses. The converter operates by rapidly switching an internal transistor on and off, controlling the energy transfer from the input to the output.

Detailed Application Field Plans

The MAX1694EUB is commonly used in portable electronic devices such as smartphones, tablets, portable media players, and handheld gaming consoles. It is ideal for applications where a low input voltage needs to be boosted to power sensitive components or subsystems. Some specific application areas include:

1. Battery-powered devices: Extending battery life by efficiently converting the battery voltage to the required level.
2. IoT devices: Powering wireless sensors, communication modules, and microcontrollers in IoT applications.
3. Wearable devices: Providing regulated power to wearable electronics like smartwatches, fitness trackers, and medical devices.
4. Portable audio/video devices: Enabling efficient power conversion for audio amplifiers, display drivers, and other multimedia components.

Detailed and Complete Alternative Models

1. MAX1720: Step-up DC-DC converter with higher maximum output current (500mA).
2. MAX1771: Step-up DC-DC converter with integrated power switch and higher efficiency.
3. MAX6190: Low-power step-up DC-DC converter with adjustable output voltage and lower cost.

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

In conclusion, the MAX1694EUB is a low-power step-up DC-DC converter designed for efficient power conversion in portable electronic devices. With its compact size, adjustable output voltage, and high efficiency, it is a versatile solution for various applications. However, its limited maximum output current and external component requirements should be considered when selecting the appropriate power management solution.