Details
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| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | Continuous Operation | 2.7 | - | 5.5 | V |
| Output Voltage | VOUT | Regulated Output | 1.2 | - | 3.3 | V |
| Quiescent Current | IQ | VOUT = 3.3V, IOUT = 0mA | - | 30 | 60 | 渭A |
| Dropout Voltage | VDROP | IOUT = 500mA, VOUT = 3.3V | - | 0.3 | 0.6 | V |
| Output Current | IOUT | Continuous Operation | - | 500 | 600 | mA |
| Shutdown Current | ISD | VIN = 5.5V, SHDN = 0V | - | 0.1 | 1 | 渭A |
| Thermal Shutdown | TSD | - | - | 160 | - | 掳C |
| Operating Junction Temperature | TJ | - | -20 | - | 125 | 掳C |
Instructions for Use:
Input Voltage (VIN):
- Ensure the input voltage is within the range of 2.7V to 5.5V.
- The input voltage should be stable and free from excessive noise.
Output Voltage (VOUT):
- The output voltage is regulated and can be set to 1.2V, 1.8V, 2.5V, 3.0V, or 3.3V depending on the specific version of the MIC4452ZT.
- Use appropriate capacitors on the output to ensure stability and filter out any ripple.
Quiescent Current (IQ):
- The quiescent current is typically 30渭A and can go up to 60渭A under certain conditions.
- This current is drawn even when there is no load on the output.
Dropout Voltage (VDROP):
- The dropout voltage is the difference between the input and output voltages when the regulator is operating at its maximum output current.
- It is typically 0.3V and can go up to 0.6V at 500mA output current.
Output Current (IOUT):
- The maximum continuous output current is 500mA, with a peak of 600mA.
- Ensure that the load does not exceed this limit to avoid overheating and potential damage.
Shutdown Current (ISD):
- When the shutdown pin (SHDN) is pulled low, the device enters a low-power mode with a shutdown current of 0.1渭A to 1渭A.
- Use this feature to conserve power when the regulator is not needed.
Thermal Shutdown (TSD):
- The device will automatically shut down if the junction temperature exceeds 160掳C to prevent damage.
- Ensure adequate heat dissipation and proper thermal management to avoid reaching this temperature.
Operating Junction Temperature (TJ):
- The operating junction temperature range is from -20掳C to 125掳C.
- Ensure the device operates within this range to maintain reliability and performance.
Capacitor Selection:
- Use ceramic capacitors with low ESR (Equivalent Series Resistance) for both input and output to ensure stability.
- Typical values are 1渭F for the input and 10渭F for the output.
PCB Layout:
- Place the input and output capacitors as close as possible to the respective pins of the regulator.
- Ensure a good ground plane to minimize noise and improve thermal performance.
Handling Precautions:
- Handle the device with care to avoid static damage.
- Follow proper soldering techniques to ensure reliable connections and avoid thermal stress.
By following these parameters and instructions, you can ensure optimal performance and reliability of the MIC4452ZT in your application.
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