RH5RH
APPLICATION CIRCUITS
• 12V
Inductor
Diode
VOUT
| RH5RH502B | ZD:6.8V |
|
| |
Cb | OUT | + |
VIN | EXT | Capacitor |
|
| |
| Vss | RZD |
|
| |
Rb |
|
|
Tr |
|
|
Starter Circuit
(Note) When the Output Current is small or the Output Voltage is unstable,use the Rzd for flowing the bias current through the Zener diode ZD.
FIG. 6
•
|
| Inductor |
|
PNP Tr |
|
| VOUT |
Rb2 | Diode |
|
|
| RH5RH××1A |
| |
VIN | Lx | OUT |
|
Rb1 |
|
| |
|
|
| |
|
| Vss | + |
|
| Capacitor | |
|
|
| |
Starter Circuit
(Note) When the LX pin Voltage is over the rating at the time PNP Tr is OFF,use a RH5RH⋅⋅2B and drive the PNP Tr. by the external NPN Tr.
FIG. 7
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