LTC3600IDD#PBF

LTC®3600 is a high efficiency, monolithic synchronous buck regulator whose output is programmed with just one external resistor. The accurate internally generated 50µA current source on the ISET pin allows the use of a single external resistor to program an output voltage that ranges from 0V to 0.5V below VIN. The VOUT voltage feeds directly back to the error amplifier in unity gain fashion and equals the ISET voltage. The operating supply voltage range is 4V to 15V, making it suitable for dual lithium-ion battery and 5V or 12V input point-of-load power supply applications. The unique constant on-time architecture is ideal for operating at high frequency in high step-down ratio applications that also demand fast load transient response. Typical applications are voltage tracking supplies, point-of-load power supplies, portable instruments, distributed power systems.

• High switching frequency allows the use of small surface mount inductors
• Single resistor programmable VOUT, ±1% ISET accuracy
• Tight VOUT regulation independent of VOUT voltage
• Easy to parallel for higher current and heat spreading
• Current mode operation for excellent line and load transient response
• ISET reference current range from 49.5 to 50.5µA
• Minimum VOUT voltage is 10mV typical (VISET=0, ROUT=0)
• 12-lead plastic DFN package
• Temperature rating range from -40°C to 125°C

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