AEM20940
Thermal Energy Harvesting

Ultra-low-power start-up

• Cold start from 60 mV input voltage and 150 µW input power with the optional external module (typical)
• Cold start from 380 mV and 100 µW input power without the optional external module (typical)

Ultra-low-power Boost regulator

• Configurable MPPT with 2-pin programming
• Selectable Voc ratios of 50, 55 or 75%
• Open circuit voltage sensing for MPPT every 21 s
• Input voltage operation range from 50 mV to 3.5 V

Integrated LDO regulator at low voltage

• 1.2/1.8 V, high efficiency
• Up to 20 mA load current
• Power gated by external control

Integrated LDO regulator at high voltage

• Configurable : 1.8-2.5-3.3 V
• Up to 80 mA load current with 300 mV drop-out
• Power gated by external control

Flexible energy storage management

• Programmable overcharge and overdischarge protection
• For any type of rechargeable battery or (super)capacitor
• Fast supercapacitor charging
• Warns load when the battery is running low
• Warns when output voltage regulators are available

Optional primary battery

• Automatically switches to the primary the battery when secondary battery is exhausted