Description
BUY LTC1967 https://www.utsource.net/itm/p/12591061.html
| Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
| Supply Voltage |
VCC |
Operating range |
2.7 |
|
5.5 |
V |
| Quiescent Current |
IQ |
VIN = VCC, fSW = 1MHz |
|
300 |
|
μA |
| Output Voltage Range |
VOUT |
|
0 |
|
VCC-1.2 |
V |
| Reference Voltage |
VREF |
|
|
1.24 |
|
V |
| Switching Frequency |
fSW |
|
|
1 |
|
MHz |
| Duty Cycle Range |
D |
|
0 |
|
100 |
% |
| Maximum Load Current |
ILOAD |
|
|
|
1 |
A |
| Power Efficiency |
η |
|
|
85 |
|
% |
Instructions for Using LTC1967:
Power Supply Connection:
- Connect the supply voltage (VCC) within the specified range of 2.7V to 5.5V.
Setting Output Voltage:
- Adjust external resistors connected to the feedback pin to set the desired output voltage within the range from 0V to VCC-1.2V.
Frequency Configuration:
- The switching frequency is typically set at 1 MHz but can be adjusted using an external resistor and capacitor if necessary.
Load Management:
- Ensure the load current does not exceed the maximum rated load current of 1A.
Efficiency Considerations:
- For optimal efficiency, operate within the typical efficiency range, which is around 85%.
Thermal Considerations:
- Ensure adequate heat dissipation as per the datasheet recommendations to maintain device reliability.
Component Selection:
- Choose external components such as inductors and capacitors based on the specific application requirements to ensure stable operation.
Layout Guidelines:
- Follow recommended PCB layout guidelines to minimize noise and parasitic effects, enhancing overall performance.
Note: Detailed specifications and additional parameters can be found in the official datasheet provided by the manufacturer.
(For reference only)
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