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Specifications
SKU: 12529713
| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2.7 | - | 5.5 | V | Operating input voltage range |
| Output Voltage | VOUT | - | 3.3 | - | V | Fixed output voltage |
| Output Current | IOUT | - | 1.2 | - | A | Maximum continuous output current |
| Quiescent Current | IQ | - | 30 | - | μA | Typical quiescent current |
| Dropout Voltage | VDROPOUT | - | 200 | - | mV | Typical dropout voltage at full load |
| Load Regulation | - | - | 1 | - | % | Change in output voltage with load |
| Line Regulation | - | - | 0.2 | - | % | Change in output voltage with input voltage |
| Ripple Rejection | - | - | 60 | - | dB | Power supply rejection ratio at 1 kHz |
| Operating Temperature | TOPR | -40 | - | 85 | °C | Operating ambient temperature range |
| Storage Temperature | TSTG | -40 | - | 125 | °C | Storage temperature range |
| Thermal Shutdown | TSD | - | 150 | - | °C | Thermal shutdown temperature |
| Package Type | - | - | SOT-23-5 | - | - | Package type |
Instructions for Use:
Input Voltage (VIN):
- Ensure the input voltage is within the specified range of 2.7V to 5.5V.
- Avoid applying voltages outside this range to prevent damage to the device.
Output Voltage (VOUT):
- The PT4121E23F provides a fixed output voltage of 3.3V. No external components are required to set this voltage.
Output Current (IOUT):
- The maximum continuous output current is 1.2A. Ensure that the load does not exceed this limit to avoid overheating or damage.
Quiescent Current (IQ):
- The typical quiescent current is 30μA, which is relatively low, making the device suitable for battery-powered applications.
Dropout Voltage (VDROPOUT):
- The typical dropout voltage is 200mV at full load. This means the input voltage should be at least 200mV higher than the output voltage to ensure stable operation.
Load and Line Regulation:
- The load regulation is 1%, and the line regulation is 0.2%. These parameters indicate the stability of the output voltage under varying load and input conditions.
Ripple Rejection:
- The power supply rejection ratio (PSRR) is 60dB at 1kHz, which helps in filtering out ripple from the input voltage.
Operating and Storage Temperature:
- The operating temperature range is -40°C to 85°C, and the storage temperature range is -40°C to 125°C. Ensure the device is used within these limits to maintain reliability.
Thermal Shutdown:
- The device includes thermal protection and will shut down if the temperature exceeds 150°C to prevent damage.
Package Type:
- The PT4121E23F comes in a SOT-23-5 package, which is small and suitable for surface mount applications.
Layout Recommendations:
- Place the input and output capacitors as close as possible to the IC to minimize parasitic inductance.
- Use a 1μF ceramic capacitor for both input and output to ensure stability.
- Ensure proper PCB layout to manage heat dissipation, especially under high load conditions.
Application Notes:
- The PT4121E23F is ideal for portable devices, consumer electronics, and other applications requiring a stable 3.3V output from a variable input voltage.
Inquiry - PT4121E23F
