400 MA Sync−Rect PFM Step−Up DC−DC Converter With True−Cutoff And Ring−Killer

NCP1423 is a monolithic micropower high frequency stepup switching converter IC specially designed for battery operated handheld electronic products. It integrates Synchronous Rectifier for improving efficiency as well as eliminating the external Schottky Diode High switching frequency (up to 600 kHz) allows low profile inductor and output capacitor being used. When the IC is disabled, internal conduction path from LX or BAT to OUT is blocked, OUT pin is isolated from the battery. This achieves TrueCutoff. RingKiller is also integrated to eliminate the high frequency ringing in discontinuous conduction mode. LowBattery Detector, CyclebyCycle Current Limit, Overvoltage Protection and Thermal Shutdown provide valueadded features for various battery operated application. With all of these functions ON, the quiescent supply current is only 9.0 A. This device is available in compact Micro10 package. By ON Semiconductor
NCP1423 's PackagesNCP1423 's pdf datasheet

NCP1423 Pinout, Pinouts
NCP1423 pinout,Pin out
This is one package pinout of NCP1423,If you need more pinouts please download NCP1423's pdf datasheet.

NCP1423 Application circuits
NCP1423 circuits
This is one application circuit of NCP1423,If you need more circuits,please download NCP1423's pdf datasheet.

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