Description
BUY LM317HVT/NOPB https://www.utsource.net/itm/p/12607194.html
| Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
| Input Voltage |
VIN |
|
3.0 |
|
40.0 |
V |
| Output Voltage |
VOUT |
Adjustable |
1.25 |
|
37.0 |
V |
| Output Current |
IOUT |
Continuous |
|
1.5 |
|
A |
| Line Regulation |
|
0 ≤ IADJ ≤ 10mA |
0.01 |
|
0.10 |
% |
| Load Regulation |
|
0 ≤ IOUT ≤ 1.5A |
0.01 |
|
1.0 |
% |
| Dropout Voltage |
VDROPOUT |
IOUT = 1.5A |
|
2.0 |
|
V |
| Thermal Shutdown |
TSD |
|
|
160 |
|
°C |
| Safe Operating Area |
SOA |
|
|
|
|
|
| Quiescent Current |
IQ |
VOUT = 5V, IOUT=0 |
5 |
10 |
15 |
mA |
Instructions for LM317HVT/NOPB
Circuit Configuration:
- Connect the input voltage (VIN) to the input pin.
- Connect the output pin to the load through a resistor (R1).
- Connect an adjustable resistor (R2) between the output and adjustment pins.
- Ensure the ground connection is stable.
Output Voltage Adjustment:
- The output voltage can be set using the formula: ( V_ = 1.25 times (1 + frac) + I_ times R2 )
- Typically, ( I_ ) is very small and can often be neglected.
Capacitor Requirements:
- Use a 0.1 μF capacitor from the input pin to ground for stability.
- Optionally, use a 1 μF capacitor from the output pin to ground to improve transient response.
Thermal Considerations:
- Ensure proper heat sinking if operating at higher currents or in high ambient temperatures to prevent thermal shutdown.
Safe Operating Area:
- Verify that the device operates within its safe operating area by not exceeding maximum power dissipation and current ratings.
Mounting and Handling:
- Handle with care to avoid damage to leads and ensure correct orientation during soldering.
(For reference only)
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