Specifications
SKU: 1722258
Parameter | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Supply Voltage | Vcc | 2.0 | - | 5.5 | V |
Output Current | Iout | - | 100 | 300 | mA |
Quiescent Current | Iq | - | 1.0 | 1.5 | mA |
Dropout Voltage | Vdo | - | 0.3 | 0.6 | V |
Operating Temperature | Topr | -40 | - | 125 | °C |
Storage Temperature | Tstg | -65 | - | 150 | °C |
Instructions for Using A4502:
Power Supply:
- Ensure the supply voltage (Vcc) is within the range of 2.0V to 5.5V.
- Use appropriate decoupling capacitors (e.g., 0.1μF and 10μF) close to the Vcc pin to filter out noise.
Output Current:
- The A4502 can provide up to 300mA of output current.
- For higher currents, consider using external transistors or power stages.
Quiescent Current:
- The quiescent current (Iq) is typically 1.0mA and can go up to 1.5mA.
- This is the current consumed by the device when it is not driving any load.
Dropout Voltage:
- The dropout voltage (Vdo) is the difference between the input and output voltages at which the regulator can no longer maintain regulation.
- It is typically 0.3V and can go up to 0.6V.
Temperature Range:
- The operating temperature (Topr) range is from -40°C to 125°C.
- The storage temperature (Tstg) range is from -65°C to 150°C.
PCB Layout:
- Place the A4502 as close as possible to the load to minimize trace resistance and inductance.
- Use wide traces for power and ground connections to reduce voltage drops and improve thermal performance.
Thermal Considerations:
- Ensure adequate heat dissipation if the device will be operating near its maximum current and temperature limits.
- Consider using a heatsink or thermal pad if necessary.
Protection:
- The A4502 includes internal short-circuit and over-temperature protection.
- However, external fuses or current-limiting resistors may be needed for additional safety in some applications.
Inquiry - A4502