SC2642

The SC2642 provides microprocessor core voltage regulation solution with two paralleled PWM channels. The feature of SC2642 are as follows: (1)VRD/VRM10.0, VRM9.X, and K-8 compliant; (2)Core Voltage Set Point Accuracy 0.5%; (3)Combi-SenseTM Current Mode Control; (4)Intrinsic Phase Current Matching; (5)Fast Transient Responses; (6)Active Droop with Temperature Compensation to Meet Load Line Slope; (7)Support VID-on-Fly with 5 or 6 bit VID; (8)Enable Function for Power Sequencing; (9)Cycle-by-Cycle Peak Current Limit; (10)Intelligent Over Current Shut Down; (11)Over Voltage Protection When Using Semtech Combi-SenseTM Driver SC1211; (12)Under Voltage Protection Built in; (13)External programmable Soft-Start; (14)Externally programmable switching frequency (up to 1 MHz output ripple frequency).

The absolute maximum ratings of the SC2642 are: (1)Supply Voltage: 20 V; (2)Combi-Sense/Direct Output Voltage: 5 V; (3)VID pins except VID5,Frequency pin: 7 V; (4)Ground sense: -0.3 to 0.3 V; (5)All other pins: + 0.3 V; (6)Ambient Temperature Range: 0 to 105; (7)Junction Temperature Range: 0 to 125; (8)Storage Temperature Range: -65 to +150; (9)Lead Temperature (Soldering) 10 Sec.: 260.

The following is about the electrical characteristics of SC2642: (1)IC Supply Voltag: 7.5V min, 12V typical and 14 V max; (2)IC Supply Current: 10 mA typical and 13 mA max; (3)UVLO Ramp Up: 7.3V typical and 7.5 V max; (4)UVLO Ramp Down: 6.4V min and 6.6 V typical; (5)Bandgap Output: 2.945V min, 2.990V typical and 3.035 V max at CBGOUT = 4.7nF; (6)Source Current: 220 A min, 300 A typical and 330 A max; (7)Supply Rejection: 0.5 mV/V at VCC = 10.0V ~ 14.0V; (8)Temperature Stability: 1 % at 0 < TA < 85.