LTC3315B多个输出降压调节器参数介绍及中文PDF下载

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产品概况

The LTC3315B features dual 2A monolithic synchronous step-down converters operating from a 2.25V to 5.5V input supply in one package for space-constrained applications with demanding performance requirements. Using constant frequency, peak current mode control at switching frequencies up to 10MHz with a minimum on-time as low as 25ns, both bucks achieve high efficiency and fast transient response in a very small application footprint.

The LTC3315B operates in forced continuous or pulse skip mode for low noise or in Burst Mode^® operation for high efficiency at light loads. The common buck switching frequency is 6MHz and can be synchronized to an external oscillator via the MODE/SYNC pin.

The LTC3315B can regulate outputs as low as 500mV. Other features include precision enable thresholds, a PGOOD signal, output overvoltage protection, thermal shutdown, output short-circuit protection, and up to 100% duty cycle operation for low dropout. The LTC3315B is available in a compact 2mm × 2mm LQFN package.

Applications

• Servers, Telecom Supplies, Optical Networking
• Distributed DC Power Systems (POL)
• FPGA, ASIC, µP Core Supplies
• Industrial/Automotive/Communications

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