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NB650A 0.6-13V, 6A, 150kHz Synchronous Step-Down Converter QFN17
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pMPS NB650A — synchronous step-down converter, 0.6-13V input, 6A output, 150 kHz, QFN17./p
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NB650A 0.6-13V, 6A, 150kHz Synchronous Step-Down Converter QFN17
MPS NB650A is a synchronous step-down converter that accepts 0.6 V to 13 V input, delivers 6 A, switches at 150 kHz, supplied in a QFN17 package.
Key Specifications
| Part Number | NB650A |
| Input Voltage | 0.6 V to 13 V |
| Output Current | 6 A |
| Switching Frequency | 150 kHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN17 |
| Ordering Codes | NB650A |
Features
- Wide 4.5V-to-28V Operating Input Range
- 6A Output Current
- Internal 50mΩ High-Side, 18mΩ Low-Side Power MOSFETs
- Proprietary Switching Loss Reduction Technique
- 1% Reference Voltage
- Programmable Soft-Start Time
- 2-bit VID Input
- Soft Shutdown
- Frequency Programmable from 150kHz to 1MHz
- SCP, OCP, OVP, UVP, and Thermal Shutdown
Applications
- Notebook Systems and I/O Power
- Networking Systems
- Digital Set Top Boxes
- Flat-Panel Televisions and Monitors
Design Notes
- The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
- Keep the input loop short — high di/dt at the switch node sets conducted EMI.
- Power switches are integrated, so the thermal path is the PCB copper under the pad.
- Package QFN17 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the NB650A?
0.6–13 V input and 6 A output.
What switching frequency does the NB650A run at?
150 kHz, programmable.
Which package is the NB650A available in?
QFN17.
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