Industry’s Most Efficient Nano Power Harvesting Solutions Extract and manage µW to mW Overview Energy harvesting with breakthrough TI technology allows the development of systems that extract and manage nano power from a variety of sources such as solar, thermal electric, electromagnetic, and vibration energy. With the reality of yearslong battery life, TI technology enables new applications that are simply not possible with traditional battery-powered systems. From solar-powered sensors for wireless monitoring of factories or farms to using body heat to power sensors on medical and fitness equipment, TI and leading energy harvesting partners are creating a complete ecosystem for designers to envision and create a battery-less world. From low power to no power, TI delivers the most efficient energy harvesting technology • Low quiescent currents (350 na typical) • >90% conversion efficiency even at currents as low as 15 µA • User-programmable devices with Maximum Power Point Tracking (MPPT) for optimized extraction • Cold start capability for very low input conditions ti.com/energyharvestingICs 2013 Industry’s Most Efficient Nano Power Harvesting Solutions Featured Energy Harvesting ICs Product Description bq25505 Ultra-low power boost converter with battery management and autonomous power path multi-plexing bq25504 Ultra-low power boost converter with battery management bq25570 Ultra-low power boost converter with battery management and buck output regulation TPS62736/37 Ultra-low Iq nano-buck regulators bq25504EVM-674 Evaluation module for bq25504 ultra-low-power boost converter TPS62736EVM-205 Evaluation module for TPS62736 programmable output ultra-low-power buck converter TPS62736 Efficiency at 2.5 V Regulation L = 10 µH, VIN = 3.0 V 100 90 95 80 90 70 85 60 Efficiency (%) Efficiency (%) bq25504 Efficiency vs VIN, (IIN = 100 µA) VSTOR = 3.0 V 100 50 40 30 80 75 70 65 20 60 10 55 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 50 0.001 0.01 0.1 1 10 bq25504 bq25570 Nano Power Ultra-low power boost converter with Boost Charger battery management Key Features • High-efficiency DC/DC boost converter/charger • Programmable dynamic Maximum Power Point Tracking (MPPT) with cold start feature • Flexible energy storage options • Battery charging and protection Ultra-low power boost converter with battery management and buck output regulation Key Features • High efficiency DC/DC boost converter/charger with built-in buck regulation • MPPT with cold start feature • Flexible energy storage options • Battery charging and protection bq25505 TPS62736/37 Ultra-low power boost converter with battery management and autonomous power path multi-plexing Key Features • High-efficiency DC/DC boost converter/charger with MPPT • Autonomous multiplexing for primary and secondary power • Flexible energy storage options • Battery charging and protection 100 IOUT (mA) VIN (V) Nano Power Boost Charger Programmable output Nano-Power buck converters with 50 mA load capability Key Features • High-efficiency (>90% at 15 µA) buck regulators with programmable output regulation • Ultra-low active current (350 nA) • Pass mode option • Two power-off states, including Input Power Good indication Nano Power Boost Charger Nano Power Buck Charger For more information, visit ti.com/energyharvestingICs The platform bar is a trademark of Texas Instruments. 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