LTC3413IFE#PBF

LTC®3413 is a high efficiency monolithic synchronous step-down DC/DC converter utilizing a constant frequency, current mode architecture. It operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage equal to (0.5)VREF while sourcing or sinking up to 3A of output current. An internal voltage divider reduces component count and eliminates the need for external resistors by dividing the reference voltage in half. The internal synchronous power switch with 85mohm on-resistance increases efficiency and eliminates the need for an external schottky diode. Switching frequencies up to 2MHz are set by an external resistor. Fault protection is provided by an overcurrent comparator that limits output current during both sourcing and sinking operations. Typical applications are bus termination: DDR and QDR™ Memory, SSTL, HSTL, notebook computers, distributed power systems.

• Symmetrical source and sink output current limit
• No schottky diode required
• Power good output voltage monitor
• Overtemperature protected
• Input voltage range from 2.25 to 5.5V (TA = 25°C. VIN = 3.3V)
• Typical feedback voltage line regulation is 0.04%/V (TA = 25°C, VIN = 3.3V)
• Typical power good range is ±10% (TA = 25°C, VIN = 3.3V)
• Typical switching frequency is 1MHz (ROSC = 309K, TA = 25°C)
• 16-lead plastic TSSOP package
• Temperature rating range from -40°C to 85°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