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MAX25232ATCH Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX25232ATCH Datasheet(HTML) 5 Page - Maxim Integrated Products |
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5 / 21 page  Electrical Characteristics (continued) (VSUP = VEN, VSUP = 14V, VSYNC = 0V, VOUT = 5V, TJ = -40°C to +150°C, unless otherwise noted. (Notes 2 and 5)) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Maximum Duty Cycle 98 99 % PWM Switching Frequency fSW MAX25232ATCA, MAX25232ATCB, MAX25232ATCG, MAX25232ATCH 1.925 2.1 2.275 MHz MAX25232ATCD, MAX25232ATCE, MAX25232ATCF 360 400 440 kHz Spread-Spectrum Range SS VSPS = 5V ±3 % PGOOD PGOOD Threshold, Rising VTHR,PGD VOUT rising 91 93 95 % PGOOD Threshold, Falling VTHF,PGD VOUT falling 90 92 94 % PGOOD Debounce Time tDEB MAX25232ATCA, MAX25232ATCB, MAX25232ATCG, MAX25232ATCH PWM mode 60 µs Skip mode 90 MAX25232ATCD, MAX25232ATCE, MAX25232ATCF PWM mode 80 Skip mode 110 PGOOD High-Leakage Current ILEAK,PGD TA = +25°C 1 µA PGOOD Low Level VOUT,PGD Sinking 1mA 0.4 V LOGIC LEVELS EN Level, High VIH,EN 2.4 V EN Level, Low VIL,EN 0.6 V EN Input Current IIN,EN VEN = VSUP = 14V, TA = +25°C 1 µA External Input Clock Frequency FSYNC MAX25232ATCA, MAX25232ATCB, MAX25232ATCG, MAX25232ATCH 1.7 2.6 MHz MAX25232ATCD, MAX25232ATCE, MAX25232ATCF 325 500 kHz SYNC Threshold, High VIH,SYNC 1.4 V SYNC Threshold, Low VIL,SYNC 0.4 V SYNC Internal Pulldown RPD,MODE 1000 kΩ SPS Threshold, High VIH,SPS 1.4 V SPS Threshold, Low VIL,SPS 0.4 V SPS Internal Pulldown 1000 kΩ THERMAL PROTECTION Thermal Shutdown TSHDN (Note 3) 175 °C Thermal-Shutdown Hysteresis TSHDN.HYS (Note 3) 15 °C Note 2: Limits are 100% tested at TA = +25°C. Limits over the operating temperature range and relevant supply voltage are guaranteed by design and characterization. Typical values are at TA = +25°C. MAX25232 36V, 3A Mini Buck Converters with 3.5μA IQ www.maximintegrated.com Maxim Integrated | 5 |
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