TPS542951RSAR
IC REG BUCK ADJ 2A/3A DL 16QFN
Pmic Voltage Regulators Dc Dc Switching Regulators
16-VQFN Exposed Pad
D-CAP2™, Eco-Mode™
Active
$2.99 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Model | TPS542951RSAR |
| Package / Case | 16-VQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 18V |
| Voltage - Output | 0.76V |
| Current - Output | 2A, 3A |
| Frequency - Switching | 700kHz |
| Number of Outputs | 2 |
| Supplier Device Package | 16-QFN (4x4) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
TPS542951RSAR 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 18V, output 0.76V. The 16-VQFN 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 | Adjustable |
| Current - Output | 2A, 3A |
| Number of Outputs | 2 |
| Output Configuration | Positive |
| Frequency - Switching | 700kHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 18V |
| Voltage - Input (Min) | 4.5V |
| Voltage - Output (Max) | 7V |
| Voltage - Output (Min/Fixed) | 0.76V |
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