The LTC1772ES6#PBF is a high-performance, Constant Frequency, Current Mode Step-Down DC/DC Controller from Linear Technology. Designed to drive a high-side N-channel MOSFET in a step-down (buck) converter topology, this compact and efficient controller is ideal for portable equipment where extended battery life is critical.

Key Features

• High Efficiency: The LTC1772ES6#PBF operates at a constant frequency, reducing noise and allowing for the use of small inductors and capacitors, which results in a highly efficient power conversion.
• Versatile Supply Range: This controller operates from a wide input voltage range of 2.65V to 9.8V, making it suitable for single Li-Ion, NiMH, or multi-cell alkaline/NiCd/NiMH applications.
• Low Quiescent Current: It has a very low no-load quiescent current of only 25µA, which further enhances battery life in portable applications.
• Adjustable Frequency: The switching frequency is programmable from 200kHz to 2.4MHz, allowing the optimization of efficiency, component size, and response time.
• Burst Mode® Operation: The LTC1772ES6#PBF includes Burst Mode operation, which provides high efficiency at low output currents and reduces standby power consumption.
• Current Mode Control: Current mode control provides excellent line and load transient response.

Applications

The LTC1772ES6#PBF is suitable for a variety of applications, including:

• Portable Computers
• Cellular Telephones
• Wireless and DSL Modems
• Digital Cameras
• PDAs and Handheld Computers

Package and Quality

Encased in a compact TSOT-23 package, the LTC1772ES6#PBF is designed for space-constrained applications. Linear Technology ensures high-quality and reliability of its products, and this controller is no exception. It is RoHS compliant and lead-free, catering to environmentally conscious design requirements.

Conclusion

The LTC1772ES6#PBF from Linear Technology is a robust and versatile step-down controller that combines efficiency with performance, making it an excellent choice for a wide range of power-sensitive applications. Its advanced features and compact design provide an optimal power management solution for today's portable electronics.