TPS61081

The TPS61080/1 is a 1.2-MHz/600-KHz fixed frequency boost converter designed for portable devices. The IC integrates a power PWM switch, input/output isolation switch, and power diode. The result is a highly integrated solution with the least number of external components. The input can support a single Li-ion battery and regulated 5 V, such as USB output. The output of TPS61080/1 can be boosted up to 27 V; suitable for driving up to 7 white LEDs, as well as provide supply voltage to LCD bias, OLED and 12-V line. TPS61080/1 provides comprehensive protection for highly reliably operation. The IC can survive and protect external components from a short on any single pin, except for the Vin pin. The integrated isolation MOSFET turns off when the inductor, power MOSFET,or output is shorted to ground. TPS61080/1 also isolates the output from the input during shutdown to prevent any leakage current. Other provision for protection includes 0.5-A/1.2-A peak-to-peak overcurrent protection, programmable soft start (SS), overvoltage protection (OVP), thermal shutdown and undervoltage lockout (UVLO).