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MAX25232ATCH/V+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX25232ATCH/V+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 19 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 LX Leakage ILX,LEAK VSUP = 40V, LX = 0 or 40V, TA = +25°C -1 +1 µA Undervoltage Lockout UVLO VBIAS rising 2.53 2.73 2.93 V Hysteresis 0.13 BIAS Voltage VBIAS 5.5V ≤ VSUP ≤ 36V, PWM mode 5 V BUCK CONVERTER Voltage Accuracy, 5V VOUT,5V MAX25232ATCA, MAX25232ATCD Skip mode (Note 3) 4.85 4.99 5.1 Fixed-frequency PWM mode 4.93 5 5.07 Voltage Accuracy, 3.3V VOUT,3.3V MAX25232ATCB, MAX25232ATCE Skip mode (Note 3) 3.2 3.3 3.37 Fixed-frequency PWM mode 3.25 3.3 3.35 Voltage Accuracy, 4V VOUT,4V MAX25232ATCH Skip Mode (Note 3) 3.88 4 4.12 V Fixed-frequency PWM mode 3.92 4 4.08 Output Voltage Range VOUT MAX25232ATCF, MAX25232ATCG 3 10 V FB Voltage Accuracy VFB MAX25232ATCF, MAX25232ATCG 0.985 1 1.015 V FB Current IFB MAX25232ATCF, MAX25232ATCG VFB = 1V, TA = +25°C 0.02 µA FB Line Regulation MAX25232ATCF, MAX25232ATCG VSUP = 6V to 36V 0.02 %/V High-Side Switch On- Resistance RON,HS VBIAS = 5V, ILX = 1A 70 mΩ Low-Side Switch On- Resistance RON,LS VBIAS = 5V, ILX = 1A 70 mΩ High-Side Current-Limit Threshold ILIM MAX25232ATCA, MAX25232ATCB, MAX25232ATCG, MAX25232ATCH 3.05 3.50 3.95 A MAX25232ATCD, MAX25232ATCE, MAX25232ATCF 4.10 4.70 5.60 Low-Side Negative Current-Limit Threshold INEG -1.2 A Soft-Start Ramp Time (Note 4) ISS MAX25232ATCA, MAX25232ATCB, MAX25232ATCG, MAX25232ATCH 3.5 5 ms MAX25232ATCD, MAX25232ATCE, MAX25232ATCF 5.5 7.5 Minimum On-Time tON (Note 3) 65 ns 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 % MAX25232 36V, 3A Mini Buck Converters with 3.5μA IQ www.maximintegrated.com Maxim Integrated | 4 |
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