LM3281YFQR
IC REG BUCK 3.3V 1.2A 6DSBGA
Pmic Voltage Regulators Dc Dc Switching Regulators
6-WFBGA, DSBGA
Active
$1.69 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Model | LM3281YFQR |
| Package / Case | 6-WFBGA, DSBGA |
| Mounting Type | Surface Mount |
| Operating Temperature | -30°C ~ 90°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 3V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output | 3.3V |
| Current - Output | 1.2A |
| Frequency - Switching | 6MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 6-DSBGA |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LM3281YFQR by Texas Instruments is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 5.5V, output 3.3V. The 6-WFBGA, DSBGA package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Output Type | Fixed |
| Current - Output | 1.2A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 6MHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 3V |
| Voltage - Output (Min/Fixed) | 3.3V |
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