The uP9620 is a high-efficiency, single synchronous buck converter with an internal power switch. With internal low R_DS(ON) switches, the high-efficiency buck converter is capable of delivering up to 7A output current for charger interface. The proprietary RCOT_TM technology provides fast transient response and high noise immunity. When there is a ripple injection circuit, it can support ceramic and OSCON output capacitors for low ESR application. This combination is ideal for building modern low duty ratio, untra-fast load step response DC-DC converters. The output voltage ranges from 2.9V to12V, and the conversion input voltage ranges is from 8V to 32V. The quasi-constant switching frequency is 100kHz. RCOT_TM control tracks the 100kHz switching frequency over a wide range of input and output voltages, while it increases the switching frequency at step-up of load.

The strong gate drivers of the uP9620 allow low R_DS(ON) FETs for high current applications. It is available in space saving WQFN4x4-26L and WQFN4x4-32L packages.