The LTC3426ES6 is a high-performance, compact, synchronous step-up DC/DC converter from Linear Technology, designed to meet the needs of modern portable electronic devices. This efficient power management integrated circuit is capable of generating a fixed or adjustable output voltage from an input voltage as low as 0.85V, making it ideal for single-cell Li-Ion or multi-cell alkaline/NiMH applications.

Key Features

• High Efficiency: The LTC3426ES6 boasts a high efficiency of up to 96%, ensuring minimal power loss during conversion, which is critical for battery-operated devices.
• Adjustable Output Voltage: The output voltage can be set from 2.5V to 5.25V with an external resistor divider, providing design flexibility to power various loads.
• Low Startup Voltage: With the ability to start up with an input voltage of just 0.85V, the LTC3426ES6 can operate with low battery voltages, extending device run-time.
• High Frequency Operation: Operating at a 1.2MHz fixed frequency allows the use of small surface mount inductors and capacitors, reducing the overall solution footprint.
• Burst Mode® Operation: This feature reduces quiescent current to only 7uA during light load conditions, further prolonging battery life.
• Internal Synchronous Rectifier: The inclusion of an internal synchronous rectifier improves efficiency by eliminating the need for an external Schottky diode.
• Thermal Protection: The device includes thermal shutdown protection to safeguard against overheating during high power operation or ambient temperature conditions.

Applications

The LTC3426ES6 is versatile and can be used in a variety of applications, including:

• Portable Medical Devices
• Handheld Instruments
• GPS Receivers
• Wireless and Bluetooth Devices
• MP3 Players
• Digital Cameras
• Other Battery-Powered Equipment

Encased in a compact SOT-23 package, the LTC3426ES6 is a space-saving solution for modern electronics where efficiency and small size are paramount. Its robust feature set and high level of integration make it an excellent choice for designers looking to maximize battery life while maintaining a slim product profile.