Abstract: A one-shot inductor current scheme which includes a controller to generate a signal to control a high-side switch and a low-side switch such that the high-side switch remains turned on beyond a turn-on time if a voltage level on an output supply rail remains below a reference. The scheme reduces the minimum operating voltage Vmin and/or frequency guard-band of the SoCs (system-on-chips).

Abstract: A Ton/2 generator retrofits a digital tracking algorithm to an analog Constant-On-Time (COT) Controller to enable fast sensing. The Ton/2 generation is cognizant of the delay between high-side switch (HSFET) on generation and the actual turn-on time of the HSFET so that there is no deviation of sampling point, and current is reported with high accuracy. The digital tracking algorithm automatically takes higher steps during load transients to enable faster tracking and scales the measured current (Ipeak/2) based on a discontinuous conduction mode (DCM) period for DCM current reporting.

Abstract: For a buck-boost DC-DC converter with n-type high-side field effect transistor (HSFET), a supply is derived from input and output rails, and this supply maintains a constant differential voltage independent of input supply voltage. The derived supply is used as the high supply (HS) of an HSFET Driver. As such, the HSFET resistance becomes independent of supply variation. A wide range ultra-low IQ (Quiescent current), edge triggered level-shifter provides support to a bootstrapped power stage of the inverting buck-boost DC-DC converter. When p-type HSFET is used, a supply is derived from the input and output supply rails, and this derived supply maintains a constant differential voltage independent to the input supply voltage. The derived supply is used as the low supply (LS) or ‘ground’ of the HSFET Driver. As such, the p-type HSFET resistance becomes independent of supply variation.

Abstract: For a buck-boost DC-DC converter with n-type high-side field effect transistor (HSFET), a supply is derived from input and output rails, and this supply maintains a constant differential voltage independent of input supply voltage. The derived supply is used as the high supply (HS) of an HSFET Driver. As such, the HSFET resistance becomes independent of supply variation. A wide range ultra-low IQ (Quiescent current), edge triggered level-shifter provides support to a bootstrapped power stage of the inverting buck-boost DC-DC converter. When p-type HSFET is used, a supply is derived from the input and output supply rails, and this derived supply maintains a constant differential voltage independent to the input supply voltage. The derived supply is used as the low supply (LS) or ‘ground’ of the HSFET Driver. As such, the p-type HSFET resistance becomes independent of supply variation.

Abstract: A Ton/2 generator retrofits a digital tracking algorithm to an analog Constant-On-Time (COT) Controller to enable fast sensing. The Ton/2 generation is cognizant of the delay between high-side switch (HSFET) on generation and the actual turn-on time of the HSFET so that there is no deviation of sampling point, and current is reported with high accuracy. The digital tracking algorithm automatically takes higher steps during load transients to enable faster tracking and scales the measured current (Ipeak/2) based on a discontinuous conduction mode (DCM) period for DCM current reporting.

Abstract: A one-shot inductor current scheme which includes a controller to generate a signal to control a high-side switch and a low-side switch such that the high-side switch remains turned on beyond a turn-on time if a voltage level on an output supply rail remains below a reference. The scheme reduces the minimum operating voltage Vmin and/or frequency guard-band of the SoCs (system-on-chips).