LTC3417AIDHC-1#PBF

LTC®3417A 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. Application includes GPS/navigation, digital cameras, PC cards, wireless and DSL modems, general purpose point of load DC/DC.

• Synchronizable to external clock
• No schottky diodes required
• Short-circuit protected
• Current mode operation for excellent line and load transient response
• Power good output
• Internal soft-start with individual run pin control
• Operating voltage range from 2.25 to 5.5V (VIN1 = VIN2, TA = 25°C, VIN = 3.6V)
• Typical error amplifier transconductance is 1400µS (ITH1, ITH2(PINLOAD) = ±5µA, TA = 25°C)
• 20-lead plastic TSSOP package
• Temperature rating range from -40°C to 85°C

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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