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NCP1596A Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP1596A Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 12 page NCP1596A http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C for typical value, −40°C ≤ TA ≤ 85°C for min/max values unless otherwise noted) Characteristic Symbol Min Typ Max Unit Operating Voltage VIN 4.0 − 5.5 V Under Voltage Lockout Threshold VUVLO 3.2 3.5 3.8 V Under Voltage Lockout hysteresis VUVLO_HYS − 180 − mV PFET Leakage Current (Pins 5, 4) TA = 25°C TA = −40°C to 85°C ILEAK−P − − 1.0 − 10 15 mA FEEDBACK VOLTAGE FB Input Threshold (TA = −40°C to 85°C) VFB 0.788 0.800 0.812 V FB Input Current IFB − 10 100 nA THERMAL SHUTDOWN Thermal Shutdown Threshold (Note 5) TSHDN − 160 − °C Hysteresis (Note 5) TSDHYS − 30 − °C PWM SMPS MODE Switching Frequency (TA = −40°C to 85°C) FOSC 1.27 1.5 1.725 MHz Internal PFET ON−Resitance (ILX = 100 mA, VIN = 5.0 V, TA = 25°C) (Note 5) RDS(on)_P − 0.2 0.3 Ohm Minimum Duty Cycle DMIN − 0 − % Maximum Duty Cycle DMAX − 100 − % Soft−Start Time (VIN = 5.0 V, Vo = 1.2 V, ILOAD = 0 mA, TA = 25°C) TSS 0.8 1.0 1.2 ms Main PFET Switch Current Limit (Note 5) ILIM 2.0 2.5 − A ENABLE Enable Threshold High VEN_H 1.8 − − V Enable Threshold Low VEN_L − − 0.4 V Enable bias current (EN = 0 V) IEN − 500 − nA EFFICIENCY Output Load Current 10 mA @ 1.2 V (Note 5) h − 50 − % Output Load Current 100 mA to 1.2 A @ 1.2 V (Note 5) h − 70 − % TOTAL DEVICE Quiescent Current Into VCCP (VIN = 5 V, VFB = 1.0 V, TA = 25°C) ICCP − 10 − mA Quiescent Current Into VCC (VIN = 5 V, VFB = 1.0 V, TA = 25°C) ICC − 500 − mA Shutdown Quiescent Current into VCC and VCCP (EN = 0, VIN = 5 V, VFB = 1.0 V, TA = 25°C) ICC_SD − 1.0 3.0 mA 5. Values are design guaranteed. |
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