ncp15889 ON Semiconductor, ncp15889 Datasheet
ncp15889
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ncp15889 Summary of contents
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NCP1588, NCP1589 Low Voltage Synchronous Buck Controller The NCP158x 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. ...
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PGOOD COMP/ 0.0015mF 17.08kW C2 0.007mF FB C3 0.014mF R4 R1 3.878kW R3 4.12kW 74.2W PGOOD 9 VOS MONITOR OV and UV 0 ref 0 ref COMP/EN ...
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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 (REF:NTD30N02), for min/max values unless otherwise noted Characteristic Input Voltage Range Boost Voltage Range Supply Current Quiescent Supply Current Boost Quiescent Current Undervoltage Lockout UVLO Threshold NCP1588 NCP1589 UVLO Hysteresis ...
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ELECTRICAL CHARACTERISTICS 1.0 nF (REF:NTD30N02), for min/max values unless otherwise noted Characteristic Soft-Start Soft-Start time Power Good Output Saturation Voltage OVP Threshold to Part Disable UVP Threshold to Part Disable OVP Threshold to PGOOD ...
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V CC 303 301 299 297 295 JUNCTION TEMPERATURE (°C) J Figure 3. Oscillator Frequency (f SW 4.0 3.5 3.0 2.5 2.0 1.5 1 JUNCTION TEMPERATURE (°C) J Figure ...
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Overcurrent Protection (OCP) The low-side R sense is implemented by comparing DSon the voltage at the LX, at the end time to an internally generated fixed voltage. If the phase voltage is lower than OCP trip voltage, ...
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UVLO Fault 1.45 V COMP 700 mV -0 OCP Program‐ mable LG V OUT Monitor POR UVLO NCP1588, NCP1589 0 NORMAL Figure 7. Typical Startup Sequence http://onsemi.com ...
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Overvoltage Feedback and Compensation The NCP158x allows the output voltage to be adjusted from 0 5.0 V via an external resistor divider network. The controller will try to maintain 0 ...
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Output Filter Double Pole Frequency OUT OUT + 2.653 kHz F lc c.. ESR Zero Frequency ESR OUT ...
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... Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center ...