ZHCSQM0 December 2022 TPSM82816
PRODUCTION DATA
The device offers a low input-to-output voltage differential by entering 100% duty cycle mode. When the minimum off-time of typically 15 ns is reached, the TPSM82816 skips switching cycles while it approaches 100% mode. In 100% mode, the high-side MOSFET switch is constantly turned on. The minimum input voltage to maintain a minimum output voltage is given by:
RDP is the resistance from VIN to VOUT, which includes the high-side MOSFET on-resistance and DC resistance of the inductor
VOUT(min) is the minimum output voltage the load can accept
This operation mode is particularly useful in battery-powered applications to achieve longest operation time by taking full advantage of the whole battery voltage range.