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ISL6236A Datasheet(PDF) 5 Page - Intersil Corporation |
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ISL6236A Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 37 page 5 FN6453.0 March 14, 2007 PARAMETER CONDITIONS MIN TYP MAX UNITS LDO Short-Circuit Current LDO = GND, BYP = GND 200 400 mA Undervoltage-Lockout Fault Threshold Rising edge of PVCC 4.35 4.5 V Falling edge of PVCC 3.9 4.05 LDO 5V Bootstrap Switch Threshold to BYP Rising edge at BYP regulation point LDOREFIN = GND 4.53 4.68 4.83 V LDO 3.3V Bootstrap Switch Threshold to BYP Rising edge at BYP regulation point LDOREFIN = VCC 3.0 3.1 3.2 V LDO 5V Bootstrap Switch Equivalent Resistance LDO to BYP, BYP = 5V, LDOREFIN > (VCC - 1V), Guaranteed by design 0.7 1.5 Ω LDO 3.3V Bootstrap Switch Equivalent Resistance LDO to BYP, BYP = 3.3V, LDOREFIN < 0.3V, Guaranteed by design 1.5 3.0 Ω VREF3 Output Voltage No external load, VCC > 4.5V 3.235 3.300 3.365 V No external load, VCC < 4.0V 3.220 3.300 3.380 V VREF3 Load Regulation 0 < ILOAD < 5mA 10 mV VREF3 Current Limit VREF3 = GND 10 17 mA REF Output Voltage No external load 1.980 2.000 2.020 V REF Load Regulation 0 < ILOAD < 50µA 10 mV REF Sink Current REF in regulation 10 µA VIN Operating Supply Current Both SMPSs on, FB1 = SKIP# = GND, REFIN2 = VCC VOUT1 = BYP = 5.3V, VOUT2 = 3.5V 25 50 µA VIN Standby Supply Current VIN = 5.5V to 25V, both SMPSs off, EN LDO = VCC 180 250 µA VIN Shutdown Supply Current VIN = 4.5V to 25V, EN1 = EN2 = EN LDO = 0V 20 30 µA Quiescent Power Consumption Both SMPSs on, FB1 = SKIP# = GND, REFIN2 = VCC, VOUT1 = BYP = 5.3V, VOUT2 = 3.5V 57 mW FAULT DETECTION Overvoltage Trip Threshold FB1 with respect to nominal regulation point +8 +11 +14 % REFIN2 with respect to nominal regulation point +12 +16 +20 % Overvoltage Fault Propagation Delay FB1 or REFIN2 delay with 50mV overdrive 10 µs POK_ Threshold FB1 or REFIN2 with respect to nominal output, falling edge, typical hysteresis = 1% -12 -9-6% POK_ Propagation Delay Falling edge, 50mV overdrive 10 µs POK_ Output Low Voltage ISINK = 4mA 0.2 V POK_ Leakage Current High state, forced to 5.5V 1 µA Thermal-Shutdown Threshold +150 °C Out-Of-Bound Threshold FB1 or REFIN2 with respect to nominal output voltage 5 % Output Undervoltage Shutdown Threshold FB1 or REFIN2 with respect to nominal output voltage 65 70 75 % Output Undervoltage Shutdown Blanking Time From EN signal 10 20 30 ms INPUTS AND OUTPUTS FB1 Input Voltage Low level 0.3 V High level VCC - 1.0 V Electrical Specifications No load on LDO, OUT1, OUT2, VREF3, and REF, VIN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN_LDO = 5V, TA = -40°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C. (Continued) ISL6236A |
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