TC115

Power Supply Voltage (PS)............................................12V
Power Dissipation ..................................................500 mW
LX Sink Current...................................................400 mA pk
SHDN Input Voltage ......................................................12V
Operating Temperature Range......................-40 to +85
Storage Temperature Range........................-40to +125

† Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.

The TC115 is a high-efficiency step-up DC/DC converter for small, low input voltage or batterypowered systems. This device has a start-up voltage of 0.9V and a typical supply current of 80 µA. Phase compensation and soft-start circuitry are included onchip. Unlike conventional PWM step-up converters, the TC115 automatically shifts to pulse frequency modulation (PFM) at low loads, resulting in reduced supply current and improved efficiency.

The TC115 requires only an external diode, an inductor and a capacitor, while supporting typical output currents
of 140 mA. Supply current is reduced to less than 0.5 µA (max) when SHDNinput is brought low.

Small size, low installed cost and low supply current make the TC115 step-up converter ideal for use in a wide range of battery-powered systems.