600 KHz PWM/PFM Step−Down DC−DC Controller

The NCP1550 is a monolithic micropower high frequency voltage mode stepdown controller IC, specially designed for battery operated handheld electronic products. With appropriate external Ptype MOSFET the device CAN provide up to 2.0 A loading current with high conversion efficiency. The device operates in ConstantFrequency PWM mode at normal operation, that ensures low output ripple noise, and which will automatically Switch to PFM mode at low output loads for higher efficiency. Additionally, valueadded features of Chip Enable to reduce IC OffState current and integrated feedback resistor network, make it the best choice for portable applications. The device is designed to operate for voltage regulation with minimum external components and board space. This device is available in a TSOP5 package with six standard output voltage options. By ON Semiconductor
NCP1550 's PackagesNCP1550 's pdf datasheet
NCP1550SN33T1 TSOP
NCP1550SN33T1G TSOP
NCP1550SN30T1 TSOP
NCP1550SN30T1G TSOP
NCP1550SN27T1 TSOP
NCP1550SN27T1G TSOP
NCP1550SN25T1 TSOP
NCP1550SN25T1G TSOP
NCP1550SN19T1 TSOP
NCP1550SN19T1G TSOP
NCP1550SN18T1 TSOP
NCP1550SN18T1G TSOP




NCP1550 Pinout, Pinouts
NCP1550 pinout,Pin out
This is one package pinout of NCP1550,If you need more pinouts please download NCP1550's pdf datasheet.

NCP1550 Application circuits
NCP1550 circuits
This is one application circuit of NCP1550,If you need more circuits,please download NCP1550's pdf datasheet.


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NCP1550 Application Notes NCP1550 RoHS NCP1550 Circuits NCP1550 footprint