LTC3525ESC6-3.3#TRPBF

LTC3525-3.3 is high efficiency synchronous step-up DC/DC converter with output disconnect that can start up with input as low as 0.85V. It offers a compact, high-efficiency alternative to charge pumps in single cell or dual cell alkaline or Li-Ion applications. Only three small external components are required. The device includes a 0.5ohm N-channel MOSFET switch and a 0.8ohm P-channel synchronous rectifier. Quiescent current is an ultralow 7µA, maximizing battery life in portable applications. Other features include <lt/>1µA shutdown current, antiringing control and thermal shutdown. Application includes MP3 players, portable instruments, glucose meters and digital cameras.

• Up to 95% efficiency
• Output disconnect and inrush current limit
• Delivers 60mA at 3.3V from a 1V input, or 140mA at 3.3V from a 1.8V input
• Burst Mode® operation: IQ = 7µA
• Only three external components, VIN <gt/> VOUT operation
• Antiringing control, short-circuit and overtemperature protection, very low profile of 1mm
• 0.85V input start-up voltage, 3.3V output voltage, output disconnect VOUT status in shutdown mode
• Peak current limit is 0.45A (typical)
• 6-lead plastic SC70 package, -40°C to 85°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