ZHCS538M September 2008 – October 2020 LM22678 , LM22678-Q1
PRODUCTION DATA
Figure 5-1 7-Pin PFM Package (Top
View)| PIN | TYPE | DESCRIPTION | APPLICATION INFORMATION | |
|---|---|---|---|---|
| NAME | NO. | |||
| BOOT | 3 | I | Bootstrap input | Provides the gate voltage for the high-side NFET. |
| EN | 7 | I | Enable input | Used to control regulator start-up and shutdown. See Section 7.3.1. |
| EP | EP | — | Exposed pad | Connect to ground. Provides thermal connection to PCB. See Section 8. |
| FB | 6 | I | Feedback input | Feedback input to the regulator |
| GND | 4 | — | Ground input to regulator; system common |
System ground pin |
| NC | 5 | — | Not connected | Pin is not electrically connected inside chip. Pin does function as thermal conductor. |
| SW | 1 | O | Switch pin | Switching output of regulator |
| VIN | 2 | I | Input voltage | Supply input to the regulator |