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MAX15039ETG+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX15039ETG+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 19 page 6A, 2MHz Step-Down Regulator with Integrated Switches 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VIN = VEN = 5V, CVDD = 2.2µF, TA = TJ = -40°C to +85°C, typical values are at TA = +25°C, circuit of Figure 1, unless otherwise noted.) (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS RFREQ = 49.9k Ω 0.9 1 1.1 LX Switching Frequency VIN = 2.9V to 5.5V RFREQ = 23.6k Ω 1.8 2 2.2 MHz Switching Frequency Range 500 2000 kHz LX Minimum Off-Time 78 ns LX Maximum Duty Cycle RFREQ = 49.9k Ω 92 95 % LX Minimum Duty Cycle RFREQ = 49.9k Ω 515 % Average Short-Circuit IN Supply Current OUT connected to GND, VIN = 5V 0.35 A RMS LX Output Current 6A ENABLE EN Input Logic-Low Threshold EN falling 0.9 V EN Input Logic-High Threshold EN rising 1.5 V EN Input Current VEN = 0 or 5V, VIN = 5V 0.01 µA MODE Logic-low, falling 26 Logic VDD/2 or open, rising 50 MODE Input-Logic Threshold Logic-high, rising 74 %VDD MODE Input-Logic Hysteresis MODE falling 5 %VDD MODE = GND -5 MODE Input Bias Current MODE = VDD 5 µA SS SS Current VSS = 0.45V, VREFIN = 0.6V, sourcing 6.7 8 9.3 µA THERMAL SHUTDOWN Thermal-Shutdown Threshold Rising 165 °C Thermal-Shutdown Hysteresis 25 °C POWER GOOD (PWRGD) VFB falling, VREFIN = 0.6V 88 90 92 Power-Good Threshold Voltage VFB rising, VREFIN = 0.6V 92.5 % VREFIN Power-Good Edge Deglitch VFB rising or falling 48 Clock Cycles PWRGD Output-Voltage Low IPWRGD = 4mA 0.03 0.1 V PWRGD Leakage Current VIN = VPWRGD = 5V, VFB = 0.7V, VREFIN = 0.6V 0.01 µA HICCUP OVERCURRENT LIMIT Current-Limit Startup Blanking 112 Clock Cycles Autoretry Restart Time 896 Clock Cycles |
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