Specifications
SKU: 4820756
Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
Input Voltage | V_IN | - | 4.5 | 5.0 | 5.5 | V |
Output Voltage | V_OUT | - | 3.0 | 3.3 | 3.6 | V |
Output Current | I_OUT | Continuous | - | 1.0 | 1.5 | A |
Quiescent Current | I_Q | No load | - | 10 | 20 | μA |
Dropout Voltage | V_DROPOUT | I_OUT = 1.0A | - | 0.5 | 1.0 | V |
Line Regulation | - | V_IN from 4.5V to 5.5V, I_OUT = 1.0A | - | 0.1 | 0.2 | % |
Load Regulation | - | V_IN = 5.0V, I_OUT from 0 to 1.0A | - | 0.1 | 0.2 | % |
Thermal Shutdown Temperature | T_SHUTDOWN | - | - | 150 | 170 | °C |
Operating Temperature Range | T_OP | - | -40 | - | 125 | °C |
Instructions for Use:
Input Voltage (V_IN):
- Ensure the input voltage is within the range of 4.5V to 5.5V.
- Do not exceed the maximum input voltage to avoid damage to the device.
Output Voltage (V_OUT):
- The output voltage is regulated to 3.3V (typical) with a tolerance of ±0.3V.
- Verify the output voltage using a multimeter before connecting any load.
Output Current (I_OUT):
- The device can provide up to 1.5A of continuous output current.
- For reliable operation, ensure the load does not exceed 1.0A continuously.
Quiescent Current (I_Q):
- The quiescent current is very low, typically around 10μA, which helps in reducing power consumption in low-load conditions.
Dropout Voltage (V_DROPOUT):
- The dropout voltage is the difference between the input and output voltages when the device is operating at full load.
- Ensure that the input voltage is at least 0.5V higher than the output voltage to maintain regulation.
Line and Load Regulation:
- The line regulation ensures that the output voltage remains stable despite variations in the input voltage.
- The load regulation ensures that the output voltage remains stable despite variations in the load current.
Thermal Shutdown:
- The device has built-in thermal protection that will shut down the regulator if the temperature exceeds 150°C.
- Ensure proper heat dissipation to prevent thermal shutdown.
Operating Temperature Range:
- The device is designed to operate in temperatures ranging from -40°C to 125°C.
- Avoid exposing the device to temperatures outside this range to prevent damage or malfunction.
Mounting and Layout:
- Use a good quality PCB with adequate copper area for heat dissipation.
- Place the device close to the load to minimize voltage drops in the wiring.
Capacitors:
- Use appropriate input and output capacitors to stabilize the voltage and filter out noise.
- Recommended values are typically 10μF for both input and output capacitors.
Polarity:
- Ensure correct polarity when connecting the input and output terminals.
- Reversing the polarity can damage the device.
Storage:
- Store the device in a dry, cool place away from direct sunlight and extreme temperatures.
By following these guidelines, you can ensure the reliable and efficient operation of the LU82551IT voltage regulator.
(For reference only)Inquiry - LU82551IT