NCP1523 Datasheet - ON Semiconductor

NCP1523 Adjustable Output Voltage Stepdown Converter

Pin Pin Name Type A1 GND Power Ground A2 VIN Power Input B1 SW Analog Output B2 EN Digital Input C1 GND Power Ground C2 ADJ Analog Input D1 VOUT Analog Input D2 FB Analog Input Description Ground connection for the NFET Power Stage and the analog sections. Power Supply Input for the PFET.

NCP1523 3 MHz, 600 mA, High Efficiency, Adjustable Output Voltage Step down Converter The NCP1523 step down PWM DC DC converter is optimized for portable applications powered from 1 cell Li ion or 3 cell Alkaline/NiCd/NiMH batteries. The device is available in an adjustable output voltage from 0.9 V to 3.3 V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built in 3 MHz (nomin.

NCP1523 Features

* include integrated soft

* start, cycle

* by

* cycle current limiting and thermal shutdown protection. The NCP1523 is available in a space saving, 8 pin chip scale package. Features

* Sources up to 600 mA

* 3 MHz Switching Frequency

* Up to 93% Efficiency

NCP1523_ONSemiconductor.pdf