LTC3309B (18)

The LTC3309B is available from Analog Devices at Xecor. Designed for high-efficiency, low-noise power conversion, the LTC3309B offers features such as a 6A output current, programmable frequency from 3MHz to 10MHz, and Silent Switcher™ architecture for ultralow EMI emissions. Available in a compact 2mm × 2mm LQFN package, it is ideal for applications in optical networking, servers, telecom, automotive, industrial, and communications. Whether used in distributed DC power systems, FPGA, ASIC, or µP core supplies, this series ensures fast transient response and high efficiency for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC3309B series below.

Part Number Description Package Inventory Add To Bom
LTC3309BJV#WTRPBF Ideal for automotive systems requiring stable output voltages up to 6A LQFN-12 2,057
LTC3309BHV#TRMPBF Ultra-compact LQFN package for seamless integration into modern electronic designs LQFN-12 7,211
LTC3309BEV#WTRMPBF Silent switching technology for noise-sensitive applications LQFN-12 5,296
LTC3309BEV#TRPBF 6A output current and 10 MHz switching frequency for high-performance requirements LQFN-12 7,105
LTC3309BEV#WTRPBF Efficient and compact switching regulator design LQFN-12 7,728
LTC3309BEV#TRMPBF ROHS-compliant LQFN-12(2x2) package, facilitating space-efficient integration LQFN-12 3,016
LTC3309BHV#WTRMPBF LTC3309BHV#WTRMPBF is a high-performance, silent switch synchronous buck controller LQFN-12 7,206
LTC3309BHV#TRPBF Synchronous DC-DC converter LQFN-12 6,582
LTC3309BHV#WTRPBF High voltage efficiency LQFN-12 4,051
LTC3309BIV#TRMPBF Reliable output current handling for demanding applications with minimal voltage dro LQFN-12 6,335
LTC3309BJV#TRPBF output current for powering high-current devices reliably LQFN-12 8,972
LTC3309BIV#WTRMPBF Compact 2mm x 2mm LQFN package for space-saving designs LQFN-12 2,266
LTC3309BJV#TRMPBF Conv DC-DC 2.25V to 5.5V Synchronous Step Down Single-Out 0.5V to 5.5V 6A 12-Pin LQFN EP T/R LQFN-12 7,899
LTC3309BIV#TRPBF 309BIV#TRPBF - DC-DC Converters ROHS": LQFN-12 7,993
LTC3309BIV#WTRPBF LTC3309BIV#WTRPBF: Efficient synchronous step down converter for automotive applications LQFN-12 6,212
LTC3309BJV#WTRMPBF Compact 5V, 6A step-down switcher with ultra-quiet operation LQFN-12 7,962
LTC3309BMPV#TRMPBF High-efficiency DC-DC converter for powering microcontrollers and other low-voltage devices LQFN-12 8,100
LTC3309BMPV#TRPBF Conv DC-DC 2.25V to 5.5V Synchronous Step Down Single-Out 0.5V to 5.5V 6A 12-Pin LQFN EP T/R LQFN-12 9,078

Key Featrues

High Efficiency with Low Resistance MOSFETs: The LTC3309B incorporates 8mΩ NMOS and 31mΩ PMOS, significantly reducing power loss and improving overall efficiency. This makes it ideal for applications requiring high power density and energy savings, such as distributed DC power systems and FPGA/ASIC core supplies.
Programmable Frequency (3MHz-10MHz): The ability to program the switching frequency allows designers to optimize the converter for specific applications. Higher frequencies enable the use of smaller inductors and capacitors, reducing the overall footprint and cost while maintaining performance in compact designs like optical networking and automotive systems.
Peak Current Mode Control with 22ns Minimum On-Time: This feature ensures wide bandwidth and fast transient response, making the LTC3309B highly responsive to load changes. This is particularly beneficial in dynamic environments such as telecom and industrial applications, where quick adjustments are critical for stable operation.
Silent Switcher™ Architecture: The Silent Switcher technology minimizes electromagnetic interference (EMI) emissions, making the LTC3309B suitable for noise-sensitive applications like automotive and communications systems. This architecture also simplifies EMI compliance, reducing design challenges and time-to-market.
Pin Compatibility with LTC3307 (3A) and LTC3308 (4A): This feature allows for easy scalability and flexibility in design, enabling seamless upgrades or downgrades in current handling capabilities without significant redesign. This is advantageous for developers working on modular systems or evolving product lines.

Applications

Optical Networking Power Management: The LTC3309B is ideal for powering optical networking equipment, such as transceivers and switches, where high efficiency and low noise are critical. Its Silent Switcher™ architecture minimizes EMI emissions, ensuring reliable performance in dense networking environments.
Automotive Power Systems: The LTC3309B is well-suited for automotive applications, such as infotainment systems and advanced driver-assistance systems (ADAS). Its wide input voltage range and high efficiency make it an excellent choice for powering sensitive electronics in vehicles, even under harsh operating conditions.
Industrial Power Distribution: The LTC3309B is perfect for distributed DC power systems in industrial settings, such as factory automation and robotics. Its fast transient response and compact design enable efficient power delivery to FPGA, ASIC, and µP core supplies, ensuring stable operation in demanding environments.
Telecom Infrastructure: The LTC3309B is ideal for telecom infrastructure, including base stations and servers, where high efficiency and low noise are essential. Its programmable frequency and peak current mode control allow for optimized performance in powering high-performance telecom equipment, ensuring reliable communication networks.