LTC3417AIFE-2#PBF

LTC3417A-2 is a dual constant frequency, synchronous step-down DC/DC converter. Intended for medium power applications, it operates from a 2.25V to 5.5V input voltage range and has a constant programmable switching frequency, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. Each output voltage is adjustable from 0.8V to 5V. Internal synchronous, low RDS(ON) power switches provide high efficiency without the need for external schottky diodes. A user selectable mode input allows the user to trade off ripple voltage for light load efficiency. Burst Mode operation provides high efficiency at light loads, while Pulse Skip mode provides low ripple noise at light loads. A phase mode pin allows the second channel to operate in-phase or 180° out-of-phase with respect to channel 1. It is widely used in application such as GPS/navigation systems, automotive instrumentation, PC cards, industrial power supplies, general purpose point of load DC/DC etc.

• High efficiency upto 95%, power good output
• 1.5A/1A guaranteed minimum output current
• Synchronizable to external clock, internal soft-start with individual run pin control
• Oscillator frequency is 1.5MHz typical
• Both channels in sleep mode is 125μA typical
• Low RDS(ON) internal switches, short-circuit protected
• Operating voltage range is 2.25V to 5.5V
• Ultralow shutdown current is <lt/> 1μA maximum
• Operating temperature is -40°C to 125°C
• Packaging style is 20-lead plastic TSSOP

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