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Datasheet
NC2780
Synchronous 34V Input Buck Switching Regulator (Controller)
FEATURES
GENERAL DESCRIPTION
• Input Voltage (Maximum Rating):
4.0 V to 34 V (36 V)
• Start-Up Voltage:
4.5 V
• Output Voltage:
0.7 V to 5.3 V
• Feedback Voltage Tolerance:
0.64 V ± 1 %
• Quiescent Current:
Typ. 15 µA (PFM at no load)
The NC2780 is a CMOS-based controller-type buck switching regulator that operates using external high-side and low-side NMOSFETs. Equipped with a PFM function, it achieves high efficiency even at light loads, enabling low consumption in the system. Also, the switching frequency can be adjusted in the range of 250 kHz to 1 MHz by an external resistor.