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MAX17559 Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX17559 Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 28 page (VIN = 24V, RT = open, CVCCINT = 4.7µF, EN_ = open, DH_, DL_ = open, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) Note 2: Limits are 100% tested at TA = 25°C. Limits over the temperature range and relevant supply voltage range are guaranteed by design and characterization. Note 3: This supply current excludes the switching current due to the external MOSFETs’ gate charge. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CURRENT LIMIT ILIM_ reference current 4.5 5 5.5 µA Adjustable Cycle-by-Cycle Peak Current-Limit Threshold 0.6V < ILIM_ <2V 30 100 mV Peak Current-Limit Threshold Programming Gain 0.6V < ILIM_ <2V 42.5 50 57.5 mV/V ILIM_ THRESHOLD Low-Voltage Threshold Rising 0.3 0.4 0.5 V High-Voltage Threshold Rising, with respect to VCCINT -1.5 -1 -0.5 V ILIMSEL THRESHOLD Low-Voltage Threshold Rising 0.4 V ERROR AMPLIFIER Feedback Regulation Voltage VFB_ 786.5 800 813.5 mV FB _ Input Leakage Current VFB_ = 0.8V, TA = TJ = 25°C -100 0 +100 nA Transconductance gM_ 1.7 2 2.3 mA/V POWER-GOOD OUTPUTS PGOOD_ Threshold VFB__rising 103 110 113 % of FB_ VFB__falling 87 90 93 PGOOD_ Output Low Level IPGOOD_ = 10mA 0.05 0.15 0.25 V PGOOD_ Leakage Current VPGOOD_= 5V , TA = TJ = 25°C -100 +100 nA THERMAL SHUTDOWN Thermal-Shutdown Threshold 160 °C Thermal-Shutdown Hysteresis 20 °C MAX17559 60V, Dual-Output, Synchronous Step-Down Controller www.maximintegrated.com Maxim Integrated │ 6 Electrical Characteristics (continued) |
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