Description
BUY LMR14020SDDAR https://www.utsource.net/itm/p/12541875.html
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Conditions |
Input Voltage |
VIN |
3.0 |
- |
60 |
V |
|
Output Voltage |
VOUT |
- |
- |
50 |
V |
Adjustable |
Output Current |
IOUT |
- |
- |
2 |
A |
Continuous |
Quiescent Current |
IQ |
- |
70 |
- |
渭A |
No load, VIN = 12V |
Dropout Voltage |
VDROPOUT |
- |
1.2 |
- |
V |
IOUT = 1A |
Load Regulation |
- |
- |
0.1 |
- |
% |
IOUT: 0mA to 2A |
Line Regulation |
- |
- |
0.01 |
- |
%/V |
VIN: 3V to 60V |
PSRR (Power Supply Rejection Ratio) |
- |
- |
70 |
- |
dB |
f = 1kHz, VIN = 12V, IOUT = 100mA |
Operating Temperature |
TJ |
-40 |
- |
125 |
掳C |
Junction temperature |
Storage Temperature |
TSTG |
-65 |
- |
150 |
掳C |
|
Instructions for Use:
Input Voltage (VIN):
- Ensure the input voltage is within the range of 3.0V to 60V.
- The input voltage should be stable and free from excessive noise.
Output Voltage (VOUT):
- The output voltage can be adjusted up to 50V.
- Use an external resistor network to set the desired output voltage according to the datasheet formula.
Output Current (IOUT):
- The device can provide a continuous output current of up to 2A.
- For higher current applications, ensure proper heat dissipation and thermal management.
Quiescent Current (IQ):
- The quiescent current is typically 70渭A when there is no load and the input voltage is 12V.
- This low quiescent current helps in reducing power consumption in low-power systems.
Dropout Voltage (VDROPOUT):
- The dropout voltage is typically 1.2V at an output current of 1A.
- Ensure that the input voltage is at least 1.2V higher than the output voltage to maintain regulation.
Load Regulation:
- The load regulation is 0.1% over the output current range from 0mA to 2A.
- This ensures minimal changes in output voltage with varying load conditions.
Line Regulation:
- The line regulation is 0.01%/V over the input voltage range from 3V to 60V.
- This ensures minimal changes in output voltage with varying input voltage.
PSRR (Power Supply Rejection Ratio):
- The PSRR is 70dB at 1kHz, which helps in rejecting input voltage variations and noise.
- This is particularly important in noisy environments or where the input voltage may fluctuate.
Operating Temperature (TJ):
- The device can operate at junction temperatures ranging from -40掳C to 125掳C.
- Ensure proper heat sinking if operating at high temperatures or high output currents.
Storage Temperature (TSTG):
- The device can be stored at temperatures ranging from -65掳C to 150掳C.
- Store the device in a dry, cool place to avoid damage.
Additional Notes:
- Always refer to the specific application notes and datasheet for detailed information and recommended circuit designs.
- Ensure all components used in the circuit are rated appropriately for the operating conditions.
- Proper PCB layout and component selection are crucial for optimal performance and reliability.
(For reference only)
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