ZHCSIH6B July 2018 – October 2019 TPS563231
PRODUCTION DATA.
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| BST | 4 | O | Supply input for the high-side NFET gate drive circuit. Connect 0.1 µF capacitor between BST and SW pins. |
| EN | 5 | I | Enable input control. High = On, Low = Off. Can be connected to VIN. Do not float. Adjust the input undervoltage lockout with EN resistor divider. |
| FB | 6 | I | Converter feedback input. Connect to output voltage with feedback resistor divider. |
| GND | 3 | — | Power ground terminals, connected to the source of low-side FET internally. Connect to system ground, ground side of CIN and COUT. Path to CIN must as short as possible. |
| SW | 2 | O | Switch node connection between high-side NFET and low-side NFET. |
| VIN | 1 | I | Input voltage supply pin. The drain terminal of high-side power NFET. |