ANALOG DEVICES LTC3411AEMS#PBF DC-DC Switching Synchronous Buck Regulator, Adjustable, 2.5-5.5V in, 0.8-5.5V/1.25A out, MSOP-10

LTC3411 is a constant frequency, synchronous step-down DC/DC converter. Intended for medium power applications, it operates from a 2.5V to 5.5V input voltage range and has a user configurable operating frequency upto 4MHz, allowing the use of tiny, low cost capacitors and inductors 1mm or less in height. The output voltage is adjustable from 0.8V to 5.5V. Internal synchronous power switches provide high efficiency. This device�s current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors. For reduced noise and RF interference, the SYNC/MODE pin can be configured to skip pulses or provide forced continuous operation. It is widely used in application such as notebook computers, digital cameras, cellular phones, handheld instruments, board mounted power supplies etc.

• Top switch on-resistance is 0.15 ohm typical
• High efficiency is upto 96%, synchronizable to external clock
• Input DC supply current (sleep mode) is 40µA typical
• Stable with ceramic capacitors, output voltages range is 0.8V to 5V
• Current mode operation for excellent line and load transient response
• Short-circuit protected, supports prebiased outputs
• Low dropout operation is 100% duty cycle
• Low shutdown current is 1µA maximum
• Operating temperature is -40°C to 125°C
• Package style is 10-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party