NB634EL-LF-Z
IC REG BUCK ADJUSTABLE 5A 14QFN
Pmic Voltage Regulators Dc Dc Switching Regulators
14-VFDFN Exposed Pad
Active
$2.80 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Monolithic Power Systems Inc. |
| Model | NB634EL-LF-Z |
| Package / Case | 14-VFDFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -20°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 24V |
| Voltage - Output | 0.8V |
| Current - Output | 5A |
| Frequency - Switching | 500kHz |
| Number of Outputs | 1 |
| Supplier Device Package | 14-QFN (3x4) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
NB634EL-LF-Z by Monolithic Power Systems Inc. is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 24V, output 0.8V. The 14-VFDFN 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 | 5A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 500kHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 24V |
| Voltage - Input (Min) | 4.5V |
| Voltage - Output (Max) | 21.6V |
| Voltage - Output (Min/Fixed) | 0.8V |
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