Details

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BUY 1117-18 https://www.utsource.net/itm/p/4005977.html
800mA Low-Dropout Linear Regulator

Parameter	Value
Part Number	1117-18
Description	Low Dropout Voltage Regulator
Output Voltage	1.8V
Input Voltage Range	2.9V to 13V
Output Current	1A
Dropout Voltage	1.3V (at Iout = 1A)
Quiescent Current	10mA
Operating Temperature	-40掳C to +125掳C
Package	TO-252 (DPAK), SOT-223
Features	Short-circuit and thermal protection

Instructions for Use:

1. Input Connection: Connect the input voltage between 2.9V and 13V to the VIN pin. Ensure that the input capacitor is placed as close as possible to the regulator.
2. Output Connection: The VOUT pin provides a regulated 1.8V output. Place an output capacitor near this pin to stabilize the output voltage.
3. Ground Connection: Ensure a solid ground connection between the GND pin and the system ground.
4. Heat Dissipation: For applications where the regulator might get hot, consider adding a heatsink or using a PCB with adequate copper area for heat dissipation.
5. Capacitors: Use ceramic capacitors with X7R dielectric for both input and output to ensure stability. Typical values are 1渭F for input and 10渭F for output.
6. Short Circuit Protection: The device has built-in short-circuit and thermal overload protection. However, design the circuit to minimize the risk of these conditions occurring.
7. PCB Layout: Keep the layout compact and use wide traces for power and ground lines to reduce resistance and inductance.

(For reference only)