LTC3525DESC6-3.3#TRMPBF

LTC3525D-3.3 is a high efficiency synchronous step-up DC/DC converter that can start up with an 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. It features a fixed output voltage of 3.3V. In shutdown, VOUT is connected to VIN through the inductor. This device includes a 0.5ohm N-channel MOSFET switch and a 0.8 ohm P-channel synchronous rectifier. Peak switch current ranges from 150mA to 400mA, depending on load, providing enhanced efficiency. It is widely used in application such as MP3 players, portable instruments, glucose meters, digital cameras etc.

• VOUT connected to VIN in shutdown
• Upto 95% efficiency, VIN <gt/> VOUT operation
• VIN range is 0.5V to 4.5V
• Input start up voltage is 0.85V
• Output voltage is 3.3V typical
• VIN <gt/> VOUT operation, anti-ringing control
• Short-circuit and overtemperature protection
• Quiescent current is 3µA maximum
• Quiescent current in shutdown is 10µA maximum
• Operating junction temperature is -40°C to 85°C, package style is 6-lead plastic SC70

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