BL8530 ( 3 ) Diode Selection Rectifier diode will affects efficiency greatly,Though a common diode (such as 1N4148) will work well for light load,it will reduce about 5%~10% efficiency for heavy load,For optimum performance, a Schottky diode (such as 1N5817、1N5819、1N5822) is recommended. ( 4 ) Input Capacitor If supply voltage is stable, the DC-DC circuit can output low ripple, low noise and stable voltage without input capacitor. If voltage source is far away from DC-DC circuit, input capacitor value greater than 10uF is recommended. TEST CIRCUITS : (1) Output voltage test circuit(Iload=1mA) (2)Start-up voltage test circuit (Iload=1mA) (3)Hold-on voltage test circuit(Iload=1mA) www.belling.com.cn Ver1.0 6/ 14