ANALOG DEVICES LTC3561AIDD#PBF DC-DC Switching Synchronous Buck Regulator, Adjustable, 2.5 to 5.5V in, 0.8 to 5V/1A out, DFN-EP-8

LTC3561A 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. It is used in application such as notebook computers, digital cameras, cellular phones, handheld instruments, board mounted power supplies etc.

• Top switch on-resistance is 0.15ohm typical
• Current mode operation for excellent line and load transient response
• Stable with ceramic capacitors
• Short-circuit protected
• Low shutdown current is 1µA maximum
• Low quiescent current is 330µA typical at (VFB = 0.75V)
• Feedback voltage is 0.8V typical
• Feedback pin input current is ±0.1µA maximum
• Operating temperature is -40°C to 125°C
• Package style is 8-lead plastic DFN

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