Introducing the LTC3406B-2ES5 from Linear Technology

The LTC3406B-2ES5 is a high-efficiency, monolithic synchronous step-down regulator from Linear Technology that's designed to deliver a constant 2.5V output from a wide input voltage range. This compact and versatile power solution is perfect for portable devices where energy efficiency and board space are at a premium.

Key Features

• High Efficiency: With up to 96% efficiency, the LTC3406B-2ES5 ensures minimal power loss during conversion, extending battery life in portable applications.
• Wide Input Voltage Range: The device can operate from an input voltage range of 2.5V to 5.5V, making it suitable for single-cell Li-Ion, multi-cell alkaline, or NiMH applications, as well as standard 3.3V and 5V power rails.
• Fixed Output Voltage: The regulator provides a fixed 2.5V output, which is ideal for powering sensitive electronic components that require a stable voltage supply.
• Compact Design: The LTC3406B-2ES5 comes in a small, thermally efficient ThinSOT package, which allows for a compact footprint on the PCB.
• Low Ripple Operation: Its synchronous operation provides low output voltage ripple, which is critical for noise-sensitive applications.
• No External Schottky Diode Required: The internal synchronous rectification improves efficiency and eliminates the need for an external Schottky diode, reducing external component count.

Applications

The LTC3406B-2ES5 is ideally suited for a range of applications, including:

• Portable Instruments
• Wireless and DSL Modems
• Digital Cameras and MP3 Players
• PDAs and Handheld Computers

Advanced Features

Additional features of the LTC3406B-2ES5 include a burst mode operation that enhances efficiency at light loads, a shutdown mode that reduces quiescent current to only 0.1µA, and a 1.25MHz switching frequency that allows the use of small surface mount inductors and capacitors. This combination of features ensures that the LTC3406B-2ES5 provides a space-saving and efficient power management solution for modern electronic devices.

With its robust design and comprehensive feature set, the LTC3406B-2ES5 from Linear Technology represents a state-of-the-art solution for power regulation in a variety of high-performance portable applications.