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MAX17528GTJ+ Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX17528GTJ+ Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 41 page  1-Phase Quick-PWM Intel IMVP-6.5/GMCH Controllers _______________________________________________________________________________________ 3 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS RTON = 96.75k 142 167 192 RTON = 200k 300 333 366 On-Time tON VIN = 12V, VFB = 1.2V (Note 4) RTON = 303.25k 425 500 575 ns Minimum Off-Time tOFF(MIN) Measured at DH (Note 4) 300 375 ns TON Shutdown Input Current SHDN = GND, VIN = 26V, VCC = VDD = 0V or 5V, TA = +25°C 0.01 1 µA BIAS CURRENTS Quiescent Supply Current (VCC) ICC Measured at VCC, VSKIP = 5V, FB forced above the regulation point 1.5 3 mA Quiescent Supply Current (VDD) IDD Measured at VDD, SKIP = GND, FB forced above the regulation point, TA = +25°C 0.02 1 µA Shutdown Supply Current (VCC) Measured at VCC, SHDN = GND 15 30 µA Shutdown Supply Current (VDD) Measured at VDD, SHDN = GND, TA = +25°C 0.01 1 µA FAULT PROTECTION Output Undervoltage-Protection Threshold VUVP Measured at FB with respect to unloaded output voltage -450 -400 -350 mV Output Undervoltage Propagation Delay tUVP FB forced 25mV below trip threshold 10 µs IMVP-6.5 CLKEN Startup Delay (Boot Time Period, CLKEN Pullup to 3.3V with 1.9k ) tBOOT IMVP-6.5: CLKEN pullup to 3.3V with 1.9k ; measured from the time when FB reaches the boot target voltage (Note 3); the time needed for FB to reach this target voltage is based on the slew rate set by RTIME 20 60 100 µs IMVP-6.5: CLKEN pullup to 3.3V with 1.9k ; measured at startup from the time when CLKEN goes low 3 5 8 PWRGD Startup Delay GMCH: CLKEN = GND; measured from the time when FB reaches the target voltage (Note 3); the time needed for FB to reach this target voltage is based on the slew rate set by RTIME 3 5 8 ms Lower threshold, falling edge (undervoltage) -350 -300 -250 PWRGD and CLKEN (IMVP-6.5, CLKEN Pullup to 3.3V with 1.9k ) Threshold Measured at FB with respect to unloaded output voltage, 15mV hysteresis (typ) Upper threshold, rising edge (overvoltage) +150 +200 +250 mV PWRGD and CLKEN (IMVP-6.5, CLKEN Pullup to 3.3V with 1.9k ) Transition Blanking Time tBLANK Measured from the time when FB reaches the target voltage (Note 3) based on the slew rate set by RTIME 20 µs PWRGD and CLKEN (IMVP-6.5, CLKEN Pullup to 3.3V with 1.9k ) Delay FB forced 25mV outside the PWRGD trip thresholds 10 µs ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, CLKEN pullup to 3.3V with 1.9kΩ, SHDN = SLOW = ILIM = PGDIN = VCC, SKIP = GNDS = PGND = GND, VFB = VCSP = VCSN = 1.200V, D0–D6 set for 1.20V (D0–D6 = 0001100). TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25 °C.) (Note 2) |
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