LTC3105EMS#PBF

LTC3105 is a high efficiency step-up DC/DC converter. A 250mV start-up capability and integrated maximum power point controller (MPPC) enable operation directly from low voltage, high impedance alternative power sources such as photovoltaic cells, TEGs (thermoelectric generators) and fuel cells. A user programmable MPPC set point maximizes the energy that can be extracted from any power source. Burst Mode operation, with a proprietary self adjusting peak current, optimizes converter efficiency and output voltage ripple overall operating conditions. The AUX powered 6mA LDO provides a regulated rail for external microcontrollers and sensors while the main output is charging. It is used in application such as solar powered battery/supercapacitor chargers, energy harvesting, remote industrial sensors, low power wireless transmitters, cell phone, MP3, PMP and GPS accessory chargers etc.

• Input operating voltage range is 0.225V to 5V
• Maximum power point control
• Burst Mode® operation: IQ = 24µA typical at (VFB = 1.10V)
• Output disconnect and inrush current limiting
• VIN <gt/> VOUT operation, antiringing control, soft start
• Automatic power adjust, power good indicator
• Dropout voltage (LDO regulator) is 105mV typical at (ILDO = 6mA, VOUT = VAUX = 2.2V)
• Peak current limit (step-up converter) is 0.5A typical at (VFB = 0.90V, VMPPC = 0.4V)
• Operating temperature is -40°C to 85°C
• Package style is 12-lead plastic MSOP

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