LTC3388EDD-3#PBF

LTC®3388-3 is high efficiency step-down DC/DC converter with internal high side and synchronous power switches that draw only 720nA typical DC supply current at no load while maintaining output voltage regulation. Capable of supplying 50mA of load current, the LTC3388-3 also incorporate an accurate undervoltage lockout (UVLO) feature to disable the converter and maintain a low quiescent current state when the input voltage falls below 2.3V. In regulation, the LTC3388-3 enter a sleep state in which both input and output quiescent currents are minimal. The buck converter turns on and off as needed to maintain regulation. An additional standby mode disables buck switching while the output is in regulation for short duration loads requiring low ripple. Applications are keep alive power for portable, products, industrial control supplies, distributed power systems, battery-operated devices.

• 400nA input IQ in UVLO
• 2.7V to 20V input operating range
• Pin selectable output voltage range 4.82 to 5.18V (5V output selected; D1 = 1, D0 = 1)
• High efficiency hysteretic synchronous DC/DC conversion
• Standby mode disables buck switching
• 10-lead (3mm x 3mm) plastic DFN package
• -40°C to 125°C temperature range

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