SLUAAM7A december 2022 – july 2023 TPS561201 , TPS561208 , TPS562201 , TPS562208 , TPS563201 , TPS563208 , TPS563252 , TPS563257 , TPS564201 , TPS564208 , TPS564242 , TPS564247 , TPS564252 , TPS564255 , TPS564257 , TPS565201 , TPS565208 , TPS565242 , TPS565247 , TPS566242 , TPS566247
2 Comparison of Pin-out
Figure 2-1 shows TPS56x242/7 pin-out with SOT-563 package which has been optimized. It integrates BST pin and add AGND for pin 4. Figure 2-2 shows TPS56x201/8 pin-out with SOT-236 package which is different from TPS56x242/7. Figure 2-3 shows TPS56x202/3/6/7 pin-out with SOT-563 package. Both packages and pin locations are different for these three families. VBST pin of TPS56x201/8 and TPS56x202/3/6/7 is used to supply input for the high-side NFET gate driver circuit. AGND pin of TPS56x242/7 is the ground of internal analog circuitry.
Figure 2-1 TPS56x242/7
Pin-out
Figure 2-3 TPS56x202/3/6/7
Pin-out
Figure 2-2 TPS56x201/8
Pin-out| Pin | Description | |||
|---|---|---|---|---|
| Name | NO. | |||
| TPS56x242/7 | TPS56x202/3/6/7 | TPS56x201/8 | ||
| VIN | 1 | 1 | 3 | Input voltage supply pin. Connect the input decoupling capacitors between VIN and GND. |
| SW | 2 | 2 | 2 | Switch node pin. Connect the output inductor to this pin. |
| GND | 3 | 3 | 1 | GND pin source terminal of the low-side power NFET as well as the ground terminal for controller circuit. |
| FB | 6 | 6 | 4 | Converter feedback input. Connect to the output voltage with a feedback resistor divider. |
| EN | 5 | 5 | 5 | Enable input control. Driving EN high enables the converter. |
| VBST | NA | 4 | 6 | Supply input for the high-side NFET gate driver circuit. Connect 0.1-uF capacitor between VBST and SW pins. |
| AGND | 4 | NA | NA | Ground of the internal analog circuitry. Connect AGND to the GND plane. |