Details
BUY LM1117T-3.3 https://www.utsource.net/itm/p/12536037.html
Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
Input Voltage | VIN | 3.9 | 15 | V | ||
Output Voltage | VOUT | Fixed | 3.3 | V | ||
Output Current | IOUT | Continuous | 800 | mA | ||
Dropout Voltage | VD | IOUT = 100 mA, VIN = 3.9 V | 1.2 | V | ||
Quiescent Current | IQ | VIN = 3.9 V, IOUT = 0 mA | 5 | mA | ||
Load Regulation | ΔVOUT | IOUT: 0 mA to 800 mA | 4 | mV | ||
Line Regulation | ΔVOUT | VIN: 3.9 V to 15 V | 15 | mV | ||
Power Dissipation | PD | Tj = 125°C, θJA = 63°C/W | 1.2 | W | ||
Operating Temperature | TOPR | -40 | 125 | °C | ||
Storage Temperature | TSTG | -65 | 150 | °C |
Instructions for Using the LM1117T-3.3:
Input Voltage (VIN):
- Ensure the input voltage is within the range of 3.9 V to 15 V.
- The input voltage must be at least 1.2 V higher than the output voltage to maintain regulation.
Output Voltage (VOUT):
- The LM1117T-3.3 provides a fixed output voltage of 3.3 V.
- No external resistors are required for setting the output voltage.
Output Current (IOUT):
- The maximum continuous output current is 800 mA.
- Ensure that the load does not exceed this limit to avoid overheating or damage.
Dropout Voltage (VD):
- The dropout voltage is the minimum difference between the input and output voltages required to maintain regulation.
- For IOUT = 100 mA, the typical dropout voltage is 1.2 V.
Quiescent Current (IQ):
- The quiescent current is the current drawn by the regulator when no load is connected.
- At VIN = 3.9 V and IOUT = 0 mA, the typical quiescent current is 5 mA.
Load Regulation (ΔVOUT):
- The change in output voltage due to changes in load current.
- For IOUT ranging from 0 mA to 800 mA, the typical load regulation is 4 mV.
Line Regulation (ΔVOUT):
- The change in output voltage due to changes in input voltage.
- For VIN ranging from 3.9 V to 15 V, the typical line regulation is 15 mV.
Power Dissipation (PD):
- The power dissipation is the product of the voltage drop across the regulator and the output current.
- Ensure that the power dissipation does not exceed 1.2 W to avoid overheating.
Operating Temperature (TOPR):
- The operating temperature range is from -40°C to 125°C.
- Ensure that the ambient temperature and thermal design allow the device to operate within this range.
Storage Temperature (TSTG):
- The storage temperature range is from -65°C to 150°C.
- Store the device in a dry environment to prevent moisture damage.
Additional Notes:
- Use appropriate heat sinking if the power dissipation is high or the ambient temperature is elevated.
- Place input and output capacitors close to the regulator to ensure stability and reduce noise.
- For best performance, use a 1 μF ceramic capacitor on the input and a 10 μF tantalum capacitor on the output.
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