Specifications
SKU: 11214970
IC REG LIN POS ADJ 800MA TO252-3
Parameter | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Input Voltage | VIN | 1.7 | - | 15 | V |
Output Voltage Range | VOUT | 1.24 | - | 13.8 | V |
Output Current | IOUT | - | 800 | - | mA |
Dropout Voltage | VDROPOUT | - | 1.2 | - | V |
Quiescent Current | IQ | - | 10 | - | mA |
Shutdown Current | ISD | - | 2 | - | μA |
Line Regulation | - | - | 0.025 | - | %/V |
Load Regulation | - | - | 0.1 | - | %/100mA |
Output Noise Voltage | VNOISE | - | 40 | - | μVRMS |
PSRR at 1kHz | - | - | 60 | - | dB |
Operating Junction Temp | TJ | -40 | - | 125 | °C |
Storage Temperature | TSTG | -65 | - | 150 | °C |
Instructions for Use:
Input Capacitor (CIN):
- Place a 1 μF ceramic capacitor close to the input pin to ensure stability.
- For better transient response, a larger value (e.g., 10 μF) can be used.
Output Capacitor (COUT):
- A 10 μF tantalum or ceramic capacitor is recommended for the output to maintain stability.
- For improved load transient response, a higher value (e.g., 22 μF) can be used.
Adjustable Output Voltage:
- The output voltage can be adjusted using two external resistors (R1 and R2).
- The formula to calculate the output voltage is: [ V_ = 1.24 left(1 + fracright) ]
- Choose R1 and R2 such that the desired output voltage is achieved.
Thermal Considerations:
- Ensure adequate heat dissipation if the device is operating at high current levels.
- Use a heatsink if necessary to keep the junction temperature within the specified range.
Layout Considerations:
- Keep the input and output capacitors as close as possible to the respective pins to minimize parasitic inductance.
- Use wide traces for power paths to reduce resistance and improve thermal performance.
Shutdown Function:
- If the shutdown function is required, connect the SHDN pin to ground to turn off the regulator.
- To enable the regulator, leave the SHDN pin open or connect it to the input voltage.
Storage and Handling:
- Store the device in a dry environment to prevent moisture damage.
- Handle with care to avoid static discharge, which can damage the device.
Inquiry - LM1117DTX-ADJ/NOPB