LT3473EDD#PBF

LT3473 is a micropower step-up DC/DC converter with Integrated schottky diode and output disconnect circuitry. The internal 1A switch allows the device to deliver 25V at upto 80mA from a Li-Ion cell, while automatic Burst Mode operation maintains efficiency at light load. An auxiliary reference input (CTRL) allows the user to override the internal 1.25V feedback reference with any lower value, allowing full control of the output voltage during operation. A PGOOD pin sinks current when the output voltage reaches 90% of final value. It is widely used in application such as OLED bias, CCD bias etc.

• Tiny solution size, automatic Burst Mode® operation at light load
• Integrated schottky diode, integrated PNP output disconnect
• Internal reference override pin, PGOOD Pi
• Constant switching frequency is 1.2MHz typical
• Thermal shutdown, input voltage range is 2.2V to 16V
• Maximum duty cycle is 92% typical
• Switch VCESAT is 45mV typical at (ISW = 100mA)
• Supply current is 100µA typical at (SHDN = 3V, not switching)
• Operating temperature is -40°C to 85°C
• Package style is 8-lead plastic DFN

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