NCP1450A Datasheet (ON) - PWM Step-up DC-DC Controller

NCP1450A, PWM Step-up DC-DC Controller

Pin # 1 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ2 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ3 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ4 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ5 Symbol CE OUT NC GND EXT Pin Description Chip Enab

NCP1450A PWM Step up DC DC Controller The NCP1450A series are PWM step up DC DC switching controller that are specially designed for powering portable equipment from one or two cells battery packs.

The NCP1450A series have a driver pin, EXT pin, for connecting to an external transistor.

Large output currents can be obtained by connecting a low ON resistance external power transistor to the EXT pin.

The device will automatically skip switching cycles under

NCP1450A Features

* High Efficiency 86% at IO = 200 mA, VIN = 2.0 V, VOUT = 3.0 V 88% at IO = 400 mA, VIN = 3.0 V, VOUT = 5.0 V

* Low Startup Voltage of 0.9 V typical at IO = 1.0 mA

* Operation Down to 0.6 V

* Five Standard Voltages: 1.9 V, 2.7 V, 3.0 V, 3.3 V, 5.0 V with High Accuracy