Based on the naming convention, the Tsum1pfr-lf is most likely a low-dropout linear regulator (LDO) or a power management IC (PMIC) with integrated protection features. The "1pfr" could denote a 1A output current capability with a fast transient response (PFR = Power Fast Response).
The TSUM1PFR-LF would fill a gap for nano-power smart sensing where local data processing is critical. While not a real product, its imaginary feature set highlights industry demand for more intelligent analog front-ends.
Exceeding any value in this table may cause permanent damage to the Tsum1pfr-lf. Tsum1pfr-lf Datasheet
| Parameter | Symbol | Min | Max | Unit | |-----------|--------|-----|-----|------| | Input Voltage | VIN | -0.3 | 6.0 | V | | Enable Voltage | VEN | -0.3 | VIN + 0.3 | V | | Output Voltage | VOUT | -0.3 | VIN + 0.3 | V | | Output Short-Circuit Duration | - | Indefinite | - | - | | Maximum Junction Temperature | Tj | -40 | +150 | °C | | Storage Temperature | Tstg | -65 | +150 | °C | | Soldering Temperature (10 sec) | - | - | 260 | °C |
Assuming "Tsum1pfr-lf" is a genuine orderable part: Based on the naming convention, the Tsum1pfr-lf is
| Part Number | Package | Lead-Free | Marking | Reel Quantity | | :--- | :--- | :--- | :--- | :--- | | Tsum1pfr-lf-S | SOT-223 | Yes (LF) | 1PFR | 2,500 | | Tsum1pfr-lf-8 | SOIC-8 | Yes (LF) | T1L | 4,000 |
Alternative sources: If not found at DigiKey, Mouser, or Newark, consider: Exceeding any value in this table may cause
When reviewing the Tsum1pfr-lf datasheet, do not get overwhelmed by the graphs and tables. Focus on these three critical areas to determine if it fits your application: