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MAX17501EATB Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX17501EATB Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 22 page  MAX17501 60V, 500mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter www.maximintegrated.com Maxim Integrated │ 4 Electrical Characteristics (continued) (VIN = 24V, VGND = VPGND = 0V, CVIN = CVCC=1μF,VEN = 1.5V, CSS = 3300pF, VFB = 0.98 x VOUT, LX = unconnected, RESET = unconnected. TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. All voltages are referenced to GND,unlessotherwisenoted.)(Note2) Note 2: All limits are 100% tested at +25°C. Limits over temperature are guaranteed by design. Note 3: Guaranteedbydesign,notproductiontested. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CURRENT LIMIT Peak Current-Limit Threshold IPEAK-LIMIT 0.64 0.76 0.86 A RunawayCurrent-LimitThreshold IRUNAWAY- LIMIT 0.65 0.78 0.905 A Sink Current-Limit Threshold ISINK-LIMIT MAX17501A/B 0.03 A MAX17501E/F/G/H 0.3 0.35 0.4 PFM Current-Limit Threshold IPFM MAX17501A/B 0.125 A TIMINGS Switching Frequency fSW VFB > VOUT- HICF MAX17501A/B/E/F/G 560 600 640 kHz MAX17501H 280 300 320 VFB < VOUT-HICF 280 300 320 EventstoHiccupafterCrossing RunawayCurrentLimit 1 Event VOUT Undervoltage Trip Level to CauseHiccup VOUT-HICF VSS > 0.95V (soft-start is done) 69.14 71.14 73.14 % HICCUPTimeout 32,768 Cycles Minimum On-Time tON_MIN 75 120 ns Maximum Duty Cycle DMAX VFB = 0.98 x VFB-REG MAX17501A/B/E/F/G 92 94 96 % MAX17501H 96.5 97.5 98.5 LX Dead Time 5 ns RESET RESET Output Level Low IRESET = 1mA 0.02 V RESET Output Leakage CurrentHigh VFB = 1.01 x VFB-REG, TA = +25°C 0.45 µA VOUT Threshold for RESET Falling VOUT-OKF VFB falling 90.5 92.5 94.5 % VOUT Threshold for RESETRising VOUT-OKR VFB rising 93.5 95.5 97.5 % RESET DelayAfterFBReaches 95%Regulation VFB rising 1024 Cycles THERMAL SHUTDOWN Thermal-Shutdown Threshold Temperature rising 165 °C Thermal-ShutdownHysteresis 10 °C |
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