Frequently Asked Questions

How do I select the right MPS DC-DC converter for my application?

When selecting an MPS DC-DC converter, consider these key factors: 1) Input voltage range - ensure the converter supports your input voltage range with margin. 2) Output voltage and current - select a converter that can deliver your required output power with at least 20% headroom. 3) Efficiency requirements - check efficiency curves at your operating points. 4) Size constraints - MPS offers modules and integrated solutions for space-limited designs. 5) Feature requirements - consider needs like PGOOD, tracking, sequencing, and protection features. Use MPS's online design tools or contact our FAE team for selection assistance.

Browse our DC-DC converter categories or use our product selector tool to find the optimal MPS solution for your power requirements.

MPS DC-DC selection power converter guide
What is the difference between synchronous and non-synchronous buck converters?

Synchronous buck converters use a MOSFET instead of a diode for the low-side switch, improving efficiency especially at low output voltages and high currents. MPS synchronous converters offer higher efficiency (often 5-15% better), better thermal performance, and smaller solution size. Non-synchronous converters use a diode and are simpler and lower cost, suitable for lower current applications. For most modern designs, synchronous converters are preferred due to efficiency advantages.

Choose synchronous converters for high-efficiency requirements above 2A output current. Contact us for application-specific recommendations.

synchronous buck MPS converter topology
How do MPS power modules simplify design compared to discrete solutions?

MPS power modules integrate the inductor, power MOSFETs, and control circuitry in a single package. Benefits include: 1) Faster design - no inductor selection or compensation network design needed. 2) Smaller PCB area - integrated magnetics reduce footprint by 30-50%. 3) Guaranteed performance - pre-optimized design ensures stability and efficiency. 4) Reduced EMI - optimized layout and shielding. 5) Faster time-to-market - minimal external components and simple design process. MPS modules are ideal for designs where size and development time are critical.

Consider MPS power modules for space-constrained designs or when fast development is required. Browse our module portfolio.

MPS power module integrated power solution
What thermal management considerations are important for MPS DC-DC converters?

Thermal management is critical for reliable operation. Key considerations: 1) Junction temperature - keep below maximum rating (typically 125-150C). 2) Thermal resistance - understand Theta-JA and Theta-JC for your package. 3) Copper area - provide adequate PCB copper for heat spreading. 4) Airflow - consider forced convection for high-power applications. 5) Thermal vias - use thermal vias to transfer heat to inner layers. MPS provides thermal guidelines in datasheets and application notes. Use their thermal simulation tools for accurate predictions.

Review MPS thermal design guides or contact our FAE team for thermal analysis support for your specific application.

MPS thermal design power IC cooling
How do I ensure EMI compliance with MPS switching converters?

EMI management for switching converters involves: 1) Input filtering - use proper input capacitors and filters to reduce conducted emissions. 2) Layout optimization - minimize switching loop area and use proper grounding. 3) Shielding - consider shielded inductors for sensitive applications. 4) Frequency selection - some MPS converters offer frequency synchronization or spread spectrum to reduce EMI peaks. 5) Snubber circuits - add RC snubbers if needed for high-frequency ringing. MPS provides EMI-optimized reference designs and layout guidelines to help meet CISPR and FCC requirements.

Follow MPS EMI design guidelines or request EMI-optimized reference designs for your application.

MPS EMI design switching converter EMI