Figure 4-2 shows the TPS7B69-Q1 pin diagram for the SOT-23 package. For a detailed description of
the device pins, see the Pin Configuration and Functions section in the TPS7B69-Q1 data sheet.
Table 4-6 Pin FMA for Device Pins
Short-Circuited to Ground
| Pin Name |
Pin No. |
Description of Potential Failure Effects |
Failure Effect Class |
| IN |
1 |
No output voltage. System performance
depends on the upstream current limit. |
B |
| NC |
2 |
No effect. Normal operation. |
D |
| GND |
3 |
No effect. Normal operation. |
D |
| GND |
4 |
No effect. Normal operation. |
D |
| OUT |
5 |
Current limit is triggered, and the
device can repeatedly enter and exit thermal shutdown depending on
power dissipation. |
B |
Table 4-7 Pin FMA for Device Pins
Open-Circuited
| Pin Name |
Pin No. |
Description of Potential Failure Effects |
Failure Effect Class |
| IN |
1 |
Power is not supplied to the device,
resulting in no output voltage. |
B |
| NC |
2 |
No effect. Normal operation. |
D |
| GND |
3 |
A floating GND pin can result in
incorrect voltage regulation or no output voltage. |
B |
| GND |
4 |
A floating GND pin can result in
incorrect voltage regulation or no output voltage. |
B |
| OUT |
5 |
The output is disconnected from the
load. |
B |
Table 4-8 Pin FMA for Device Pins
Short-Circuited to Adjacent Pin
| Pin Name |
Pin No. |
Shorted to |
Description of Potential Failure Effects |
Failure Effect Class |
| IN |
1 |
NC |
No effect. Normal operation. |
D |
| NC |
2 |
GND |
No effect. Normal operation. |
D |
| GND |
3 |
GND |
No effect. Normal operation. |
D |
| GND |
4 |
OUT |
Current limit is triggered, and the
device can repeatedly enter and exit thermal shutdown depending on
power dissipation. |
B |
Table 4-9 Pin FMA for Device Pins
Short-Circuited to
supply
| Pin Name |
Pin No. |
Description of Potential Failure Effects |
Failure Effect Class |
| IN |
1 |
No effect. Normal operation. |
D |
| NC |
2 |
No effect. Normal operation. |
D |
| GND |
3 |
No output voltage. System performance
depends on the upstream current limit. |
B |
| GND |
4 |
No output voltage. System performance
depends on the upstream current limit. |
B |
| OUT |
5 |
The output is not regulated.
VOUT = VIN. The OUT pin can be damaged if
the absolute maximum rating (7 V) is violated. |
B/A |
Figure 4-2 Pin Diagram (SOT-23 Package)