LTC3623IUDD#PBF

LTC3623 is a high efficiency, monolithic synchronous buck regulator in which the output voltage is programmed with a single external resistor. The accurate internally generated 50µA current source on the ISET pin allows the user to program an output voltage from 0V to 0.5V below VIN. The user can also directly drive the ISET pin with an external voltage supply to program the converter’s VOUT. The VOUT voltage is fed directly back to the error amplifier to be regulated to the ISET voltage. The operating supply voltage range for the SVIN pin is from 15V down to 4V, while the PVIN pin’s voltage range is 15V down to 1.5V, making it suitable for dual Li-Ion batteries and for taking power from a 12V or 5V rail. It is used in application such as tracking supply or DDR memory supply, ASIC substrate biasing, point-of-load (POL) power supply, portable instruments, battery-powered equipment, thermo electric cooler (TEC) systems etc.

• Silent Switcher® architecture, IISET accuracy: ±1%
• Tight VOUT regulation across VOUT range, output current monitor accuracy: ±5%
• Programmable wire drop compensation, easy to parallel for higher current and heat spreading
• Input supply voltage regulation loop, high efficiency upto 96%
• Output current: ±5A, integrated N-MOSFETs (60Mohm Top & 30Mohm bottom)
• Adjustable switching frequency is 400KHz to 4MHz
• Current mode operation for excellent line and load transient response
• Input voltage range is 4V to 15V
• Operating temperature is -40°C to 125°C
• Package style is 24-lead plastic QFN

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