ncp1589l ON Semiconductor, ncp1589l Datasheet
ncp1589l
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ncp1589l Summary of contents
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... Buck Controller with Light Load Efficiency and Transient Enhancement The NCP1589L is a low cost PWM controller designed to operate from supply. This device is capable of producing an output voltage as low as 0.8 V and converting voltage from as low as 2 easy to operate and provides an optimal level of integration to reduce size and cost of the power supply ...
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V PGOOD COMP/ FLAG Figure 1. Typical Application Diagram PGOOD VORPM 9 MONITOR OV and UV 0 ref FB 8 − ref COMP/EN 7 ...
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PIN FUNCTION DESCRIPTION Pin No. Symbol 1 BOOT Supply rail for the floating top gate driver. To form a boost circuit, use an external diode to bring the desired input voltage to this pin (cathode connected to BOOT pin). Connect ...
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ELECTRICAL CHARACTERISTICS 1.0 nF, for min/max values unless otherwise noted Characteristic V Input Voltage Range CC BOOT Voltage Range dV/ VREF AND ERROR AMPLIFIER Reference Voltage Output Voltage Accuracy SUPPLY CURRENT ...
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ELECTRICAL CHARACTERISTICS (0°C < 1.0 nF, for min/max values unless otherwise noted Characteristic POWER GOOD INCLUDING OVP AND UVP THRESHOLD Output Voltage Overvoltage until PGOOD goes low Undervoltage until PGOOD goes low PGOOD ...
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... LG pin, LG will go high if FB exceeds and BOOT CC 1000 mV, then go low when FB is below 400 mV. The power of the NCP1589L needs to be cycled up to clear the overvoltage fault. Undervoltage Protection (UVP) is set to 10 kW, If the voltage on the FB pin falls below the undervoltage OCSET threshold after the soft− ...
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... mV. offset Light Load Operation In continuous current conduction mode, the operating frequency of the NCP1589L is almost constant. In light load, it runs in a discontinuous current mode with a scaled-down frequency as a function of the load current. Internal zero current detection threshold will change adaptively to ensure 4.4 V VCC ...
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... FOR END OF TERMINAL LEAD AT EDGE OF PACKAGE. MILLIMETERS DIM MIN MAX A 0.80 1. 0.00 0.05 A3 0.20 REF b 0.18 0.30 D 3.00 BSC D2 2.40 2.60 E 3.00 BSC E2 1.70 1.90 e 0.50 BSC K 0.19 TYP L 0.35 0.45 0.00 0.03 L1 1.8508 3.3048 0.5000 PITCH ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP1589L/D ...