Dual And Combinable QPWM Graphics Core Controllers For Notebook Computers EV AVAILABLE

The MAX17007A MAX17008 are dual Quick-PWM Step-down controllers intended for general power gen- eration in battery-powered systems. The two switched- mode power supplies (SMPSs) CAN also be combined to operate in a two-phase single-output mode. Constant on-time Quick-PWM operation provides fast response to load transients and handles wide input/output (I/O) volt- age ratios with ease, while maintaining a relatively con- stant switching frequency. The switching frequency CAN be individually adjusted between 200kHz and 600kHz with external resistors. Differential output current sens- ing allows output sense-resistor sensing for an accurate current limit, or lossless inductor direct-current resis- tance (DCR) current sensing for lower power dissipation while maintaining 0.7% output accuracy. Overvoltage MAX17007A only), undervoltage protection, and accu- rate user-selectable current limits (15mV, 30mV, 45mV, and 60mV) ensure robust operations. By Maxim Integrated Products