The TPS2065D
power-distribution switch family is intended for applications such as USB where heavy capacitive
loads and short circuits are likely to be encountered. The device can continuously deliver up to
1 A output current.
The TPS2065D limits
the output current to a safe level by operating in a constant-current mode when the output load
exceeds the current limit threshold. This provides a predictable fault current under all
conditions. The fast overload response time eases the burden on the main 5-V supply to provide
regulated power when the output is shorted. The power-switch rise and fall times are controlled to
minimize current surges during turnon and turnoff.
- Single Power Switch Family
- Rated currents of 1 A
- ±20% Accurate, Fixed, Constant Current Limit
- Fast Overcurrent Response: 2 µs
- Deglitched Fault Reporting
- Output Discharge
- Reverse Current Blocking
- Built-in Soft Start
- Ambient Temperature Range: –40°C to 85°C
- UL Listed and CB-File No. E169910
| Product type | Fixed current limit, Power switch |
| Vin (min) (V) | 4.5 |
| Vin (max) (V) | 5.5 |
| Continuous current (max) (A) | 1 |
| Current limit (A) | 1.55 |
| Operating temperature range (°C) | -40 to 125 |
| Enable | Active High |
| Number of switches | 1 |
| Current limit accuracy at 1 A | 0.16 |
| Rating | Catalog |