RN5RK1A

The features of RN5RK1A are: (1)small number of external components; only an inductor, a diode and a capacitor; (2)ultra low input current on standby: typ 0A; (3)high output voltage accuracy: ±2.5%; (4)low start-up voltage: max 0.9V; (5)high efficiency: typ 80%; (6)including a driver transistor with low on resistance; (7)two kinds of duty ratio: 77%.

The following is about the absolute maximum ratings of RN5RK1A: (1)step-up output pin voltage: 9V; (2)Lx Pin voltage: 9V; (3)EXT pin voltage: -0.3 to VOUT+0.3V; (4)CE pin voltage: -0.3 to VOUT+0.3V; (5)Lx Pin output current: 500mA; (6)EXT Pin output current: ±30mA; (7)power dissipation: 250mW; (8)operating temperature range: -40 to +85; (9)storage temperature range: -55 to +125.

The electrical characteristics of the RN5RK1A are: (1)output voltage: x0.975V min and x1.025V max; (2)input voltage: 8V max; (3)output voltage temperature coefficient: ±100ppm/; (4)start-up voltage: 0.75V typ and 0.9V max; (5)start-up voltage temperature coefficient: -1.6mV/ typ; (6)hold-on voltage(xx1A): 0.7V min; (7)hold-on voltage(xx1B): 0.9V min; (8)supply current2: 2A typ and 5A max; (9)standby current: 0.5A max; (10)Lx leakage current: 1A max.