Maxim Integrated Product: MAX1682EUK Overview

The MAX1682EUK is a high-efficiency, compact, step-up DC-DC converter from Maxim Integrated, designed to deliver a consistent and reliable power supply for portable electronic devices. This tiny, yet powerful component is a perfect solution for applications that require voltage boosting from low-voltage batteries to the levels necessary for modern electronic circuits.

Key Features

• High Efficiency: The MAX1682EUK operates with an efficiency of up to 96%, minimizing energy loss and ensuring longer battery life for portable applications.
• Voltage Range: It is capable of boosting input voltages from as low as 0.7V to a fixed output voltage of 3.3V or an adjustable output voltage up to 5.5V, making it versatile for various design needs.
• Compact SOT23 Package: Housed in a 5-pin SOT23 package, the device requires minimal board space, which is essential for space-constrained applications such as wearables and handheld devices.
• Low Quiescent Current: The low quiescent current of 7µA (typical) helps in conserving battery life when the device is in standby mode.
• No External Schottky Diode Needed: The internal synchronous rectifier eliminates the need for an external Schottky diode, thus reducing the overall component count and system cost.

Applications

The MAX1682EUK is ideally suited for a wide range of applications that require voltage conversion from single or multiple cell batteries. It is commonly used in:

• Portable Media Players
• Handheld Computers and PDAs
• Wireless Mice and Keyboards
• Personal Health Monitors
• Bluetooth Headsets
• Small LCD Displays

Design Advantages

Engineers and designers will appreciate the MAX1682EUK for its ease of integration into existing designs due to its minimal external component requirement. Its high-frequency operation at 600kHz allows the use of tiny, low-cost inductors and capacitors, further reducing the overall solution size. Additionally, the device's built-in over-temperature and current-limit protection features provide a reliable and secure power solution, safeguarding both the power converter and the device it powers.