SFFSAB8 December 2025 TPS7C84-Q1
4.1 SOIC Package
Figure 4-1 shows the TPS7C84-Q1 pin diagram for the SOIC package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the TPS7C84-Q1 datasheet.
Figure 4-1 Pin Diagram (SOIC) PackageTable 4-2 Pin FMA for Device Pins
Short-Circuited to Ground
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| OUT | 1 | Regulation of the device is not possible, the device operates at current limit. The device can cycle in an out of thermal shutdown. | B |
| FB/NC | 2 | (Adjustable) The device operates as a switch in dropout mode. The output tracks the input voltage (VIN) minus the voltage drop out (VDO). | B |
| (Fixed) There is no effect on the device. The device operates normally. | D | ||
| NC | 3 | There is no effect on the device. The device operates normally. | D |
| 4 | |||
| GND | 5 | There is no effect on the device. The device operates normally. | D |
| PG | 6 | The output of the open drain power good pin is pulled low. | C |
| EN | 7 | The device is disabled, resulting in no output voltage. | B |
| IN | 8 | Power is not supplied to the device. System performance depends on limiting the upstream current. | B |
Table 4-3 Pin FMA for Device Pins
Open-Circuited
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| OUT | 1 | The output of the device is disconnected from the load. | B |
| FB/NC | 2 | (Adjustable) The state of the device is unknown. If the device is on, the output voltage is indeterminate. | B |
| (Fixed) There is no effect on the device. The device operates normally. | D | ||
| NC | 3 | There is no effect on the device. The device operates normally. | D |
| 4 | |||
| GND | 5 | There is no current loop for the supply voltage. The device is not operational and does not regulate. | B |
| PG | 6 | The output of the open drain power good pin is left floating. | C |
| EN | 7 | The device potentially does not turn on. | B |
| IN | 8 | The device is not powered. The device is not functional. | B |
Table 4-4 Pin FMA for Device Pins
Short-Circuited to Adjacent Pin
| Pin Name | Pin No. | Shorted to | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|---|
| OUT | 1 | FB | The error amplifier is configured in unity gain: output voltage = reference voltage. |
B |
| NC | (Fixed) There is no effect on the device. The device operates normally. | D | ||
| FB | 2 | NC | There is no effect on the device. The device operates normally. | D |
| NC | 3 | NC | There is no effect on the device. The device operates normally. | D |
| 4 | ||||
| GND | 5 | PG | The output of the open drain power good pin is pulled low. | C |
| PG | 6 | EN | The device remains on. Regulation of the device is possible. | C |
| EN | 7 | IN | The device remains on. Regulation of the device is possible. | C |
Table 4-5 Pin FMA for Device Pins
Short-Circuited to
Supply
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| OUT | 1 | Regulation of the device is not possible, leading to an undesired output state. | B |
| FB/NC | 2 | (Adjustable) The device can have no output voltage. | B |
| (Fixed) There is no effect on the device. The device operates normally. | D | ||
| NC | 3 | There is no effect on the device. The device operates normally. | D |
| 4 | |||
| GND | 5 | Power is not supplied to the device. | B |
| PG | 6 | There is a loss of the functionality of the PG pin. System-level issues can potentially occur due to unintended current flow in the pullup resistor, depending on the relative magnitudes of the supply voltage and the pullup voltage. | A |
| EN | 7 | The device remains on. Regulation of the device is possible. | C |
| IN | 8 | There is no effect on the device. The device operates normally. | D |