Description
BUY FP7721BX2 https://www.utsource.net/itm/p/12610966.html
Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
Input Voltage |
VIN |
- |
4.5 |
- |
28 |
V |
Output Voltage |
VOUT |
- |
- |
3.3 |
5.5 |
V |
Output Current |
IOUT |
Continuous |
- |
2.1 |
3 |
A |
Quiescent Current |
IQ |
No Load |
- |
60 |
- |
μA |
Efficiency |
η |
VIN=12V, VOUT=5V, IOUT=1A |
- |
90 |
- |
% |
Dropout Voltage |
VDROPOUT |
IOUT=3A |
- |
250 |
- |
mV |
Switching Frequency |
fSW |
- |
- |
1.2 |
1.8 |
MHz |
Operating Temperature |
TOPR |
Storage |
-40 |
- |
85 |
°C |
Instructions for FP7721BX2
Input Voltage (VIN):
- Ensure the input voltage is within the range of 4.5V to 28V to avoid damage to the device.
Output Configuration:
- Set the output voltage as required using external resistors. The typical output voltage can be set between 3.3V and 5.5V.
Load Regulation:
- The device can supply up to 3A continuously. For higher current applications, ensure adequate heat dissipation.
Quiescent Current:
- When there is no load, the quiescent current is typically around 60μA.
Efficiency Considerations:
- Optimal efficiency is achieved at an input voltage of 12V, output voltage of 5V, and a load current of 1A, reaching up to 90%.
Dropout Voltage:
- At full load (3A), the dropout voltage is typically 250mV. This parameter affects the minimum input voltage required for regulation.
Switching Frequency:
- The switching frequency is adjustable between 1.2MHz and 1.8MHz, which can help in optimizing the external component size and performance.
Operating Temperature:
- The device is rated for operation from -40°C to 85°C. Ensure proper thermal management when operating near these limits.
For detailed design considerations and application circuits, refer to the datasheet provided by the manufacturer.
(For reference only)
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