资 源 简 介
The TC115 is a high-efficiency step-up DC/DCconverter for small, low input voltage or batterypoweredsystems. This device has a start-up voltageof 0.9V and a typical supply current of 80 μA. PhasecompensaTIon and soft-start circuitry are included onchip.Unlike convenTIonal PWM step-up converters,the TC115 automaTIcally shifts to pulse frequencymodulaTIon (PFM) at low loads, resulting in reducedsupply current and improved efficiency.The TC115 requires only an external diode, an inductorand a capacitor, while supporting typical output currentsof 140 mA. Supply current is reduced to less than0.5 μA (max) when SHDN input is brought low.Small size, low installed cost and low supply currentmake the TC115 step-up converter ideal for use in awide range of battery-powered systems.
