LTC3407EDD#PBF

LTC®3407 is a dual, constant frequency, synchronous step-down DC/DC converter. Intended for low-power applications, it operates from 2.5V to 5.5V input voltage range and has a constant 1.5MHz switching frequency, allowing the use of tiny, low-cost capacitors and inductors 2mm or less in height. Each output voltage is adjustable from 0.6V to 5V. Internal synchronous 0.35ohm, 1A power switches provide high efficiency without the need for external schottky diodes. A user-selectable mode input is provided to allow the user to trade off ripple noise for low power efficiency. Burst Mode® operation provides high efficiency at light loads, while pulse-skipping mode provides low ripple noise at light loads. Application includes PDAs/Palmtop PCs, digital cameras, cellular phones, portable media players, PC cards, wireless and DSL modems.

• No schottky diodes required
• Short-circuit protected
• Power-on reset output
• Externally synchronizable oscillator
• Operating voltage range from 2.5 to 5.5V (TA = 25°C, VIN = 3.6V)
• Maximum feedback pin input current is 30mA (TA = 25°C, VIN = 3.6V)
• Typical oscillator frequency is 1.5MHz (VFBX = 0.6V, TA = 25°C)
• 10-lead plastic DFN 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