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MAX1972 Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX1972 Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 20 page Dual, 180° Out-of-Phase, 1.4MHz, 750mA Step- Down Regulator with POR and RSI/PFO 6 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VIN = VCC = VEN = 5V, VFB1 = VFB2 = 1.15V, R POR = 100k Ω to IN, RPFO = 100kΩ to IN, RSI = 0, CVCC = 0.1µF, CREF = 0.1µF, FBSEL1 = unconnected, FBSEL2 = unconnected, TA = -40°C to +85°C.) (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS PFO (MAX1970 and MAX1972 Only) VCC rising 4.12 PFO Trip Threshold IN = VCC VCC falling 3.86 V PFO Output Current, High PFO = IN -1 1 µA PFO Output Voltage, Low IPFO = 1mA, VIN = 4.3V 0.05 V EN AND RSI (MAX1971 Only) VIL 0.4 Logic Input Thresholds IN = 2.6V to 5.5V VIH 1.6 V RSI Input Resistance Internal pullup resistor to IN 5 20 k Ω VIL -1 1 EN Logic Input Current Logic Input at 0 or 5.5V, VIN = 5.5V VIH -1 1 µA Note 1: Refer to the Output Voltage Selection section. Note 2: Specifications to -40°C are guaranteed by design and not production tested. |
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