During operation, the LED current can be changed using a pulse width modulation (PWM) signal applied to the CTRL pin, adjusting the brightness of the white LED. During dimming in PWM mode, the output ripple of the TPS61160A at the output capacitor is small and does not generate audible noises associated with common on/off control dimming. For maximum protection, the device features integrated open LED protection that disables the TPS61160A to prevent the output from exceeding the absolute maximum ratings during open LED conditions. The TPS61160A is available in a space-saving, 2 mm x 2 mm QFN package with thermal pad.
This 2nd generation boost converter is an alternative to the TPS61040 series for applications that require a wider input and output voltage range.