| Si9100 |  | 3-W High voltage switchmode regulator | 10 | 70 | 9.5 | 13.5 | 4 | 1000 | PDIP-14 |
| PLCC-20 |
| Si9102 | | 3-W High voltage seitchmode regulator | 10 | 120 | 9.5 | 13.5 | 4 | 1000 | PDIP-14 |
| PLCC-20 |
| Si9104 | | High Voltage switchmode regulator | 10 | 120 | 9.5 | 13.5 | 4 | 1000 | SO-16WB |
| Si9105 | | 1-W High Voltage switchmode regulator | 10 | 120 | 9.5 | 13.5 | 4 | 1000 | PDIP-14 |
| PLCC-20 |
| SO-16WB |
| Si9108 | | 1-W High Voltage switchmode regulator | 10 | 120 | 9.5 | 13.5 | 4 | 1000 | PDIP-14 |
| PLCC-20 |
| SO-16WB |
| Si9117 | | High-Frequency converter for Telecom applications | 15 | 200 | 9.5 | 16.5 | 4 | 500 | SO-16 |
| Si9121 | | High voltage, non-isolated Buck/Boost converter for ISDN Digital phones | -60 | -10 | 7.5 | 13.2 | 1.25 | 95 | SO-8 |
| Series | Description | Vin Min (V) | Vin Max (V) | Vcc Min | Vcc Max | V REF V (V) | Switching Frequency | Package |
