LM3678SD-1.2/NOPB
IC REG BUCK PROG 1.5A 10WSON
Pmic Voltage Regulators Dc Dc Switching Regulators
10-WFDFN Exposed Pad
Active
$2.09 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Model | LM3678SD-1.2/NOPB |
| Package / Case | 10-WFDFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -30°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output | 0.8V, 1.2V |
| Current - Output | 1.5A |
| Frequency - Switching | 3.3MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 10-SON (3x3) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LM3678SD-1.2/NOPB 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 0.8V, 1.2V. The 10-WFDFN Exposed Pad 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 | Programmable |
| Current - Output | 1.5A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 3.3MHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 2.5V |
| Voltage - Output (Min/Fixed) | 0.8V, 1.2V |
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