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NCP1417 Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP1417 Datasheet(HTML) 3 Page - ON Semiconductor |
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NCP1417 http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (VOUT = 3.3 V, TA = 25°C for typical value, –40°C ≤ TA ≤ 85_C for min/max values unless otherwise noted.) Characteristics Symbol Min Typ Max Unit Operating Voltage VIN 1.0 – 5.5 V Output Voltage Range (Adjusted by External Feedback) VOUT VIN – 5.5 V Reference Voltage (CREF = 150 nF, Under No Loading, TA = 25_C) VREF_NL 1.183 1.190 1.197 V Reference Voltage (CREF = 150 nF, Under No Loading, –40 _C ≤ TA ≤ 85_C) VREF_NL_A 1.178 – 1.202 V Reference Voltage Temperature Coefficient TCVREF – 0.03 – mV/ _C Reference Voltage Load Current (VOUT = 3.3 V, VREF = VREF_NL " 1.5%, CREF = 1.0 mF) (Note 5) IREF 2.5 – – mA Reference Voltage Load Regulation (VOUT = 3.3 V, ILOAD = 0 to 100 mA, CREF = 1.0 mF) VREF_LOAD – 0.015 1.0 mV Reference Voltage Line Regulation VREF_LINE – 0.03 1.0 mV/V FB, LBI Input Threshold VFB, VLBI 1.172 1.190 1.200 V Internal NFET ON–Resistance (ILX = 100 mA) RDS(ON)_N – 0.65 – W Internal PFET ON–Resistance (ILX = 100 mA) RDS(ON)_P – 1.3 – W LX Switch Current Limit (NFET) ILIM – 1.0 – A Operating Current into OUT (VFB = 1.4 V, i.e. No Switching, VOUT = 3.3 V) IQ – 9.0 14 mA Shutdown Current into OUT (SHDN = GND) ISD – 0.05 1.0 mA LX Switch MAX. ON–Time (VFB = 1.0 V, VOUT = 3.3 V) tON 0.8 1.4 2.0 mS LX Switch MIN. OFF–Time (VFB = 1.0 V, VOUT = 3.3 V) tOFF 0.22 0.25 0.46 mS FB Input Current IFB – 1.5 20 nA LBI/SHDN Input Current ILBI, ISHDN – 1.5 8.0 nA LBO1/LBO2 Low Output Voltage (VLBI = 0, ISINK = 1.0 mA) VLBO_L1 VLBO_L2 – – – – 0.08 0.08 V LBI/SHDN Input Threshold for LBO1 VLBI1 1.172 1.190 1.200 V LBI/SHDN Input Threshold for LBO2 VLBI2 0.904 0.944 0.965 V LBI/SHDN Input Threshold, Low VSHDN_L – – 0.3 V LBI/SHDN Input Threshold, High VSHDN_H 0.6 – – V 5. Loading capability decreases with VOUT. PIN FUNCTION DESCRIPTION Pin No. Pin Name Pin Description 1 FB Output Voltage Feedback Input. 2 LBI/SHDN Low–Battery Detector Input and Shutdown Control input multi–function pin. 3 LBO1 Open–Drain Low–Battery Detector Output. Output is LOW when VLBI is < 1.172 V. LBO1 is high impedance during shutdown. 4 REF 1.190 V Reference Voltage Output, bypassing with 150 nF capacitor if this pin is not loaded, bypassing with 1 µF if this pin is loaded up to 2.5 mA @ VOUT = 3.3 V. 5 LBO2 Open–Drain Low–Battery Detector Output. Output is LOW when VLBI is < 0.904 V. LBO2 is high impedance during shutdown. 6 GND Ground 7 LX N–Channel and P–Channel Power MOSFET Drain Connection. 8 OUT Power Output. OUT provides bootstrap power to the IC. |
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