MIC4950YFM-TR More Semiconductors - ICs by Microchip Technology
3.3MHz 5A Hyper Speed Controlâ„¢ Synchronous Buck Regulator
| Status: | Active |
|---|---|
| Series: | MIC4950 |
| RoHS: | Compliant |
The MIC4950 is a high-efficiency, 5A synchronous buck regulator with ultra-fast transient response perfectly suited for supplying processor core and I/O voltages from a 5V or 3.3V bus. The MIC4950 provides a switching frequency up to 3.3MHz while achieving peak efficiencies up to 95%. An additional benefit of high-frequency operation is very low output ripple voltage throughout the entire load range with the use of a small output capacitor. The MIC4950 is designed for use with a very small inductor, down to 1μH, and an output ceramic capacitor as small as 10μF without the need for external ripple injection. A wide range of output capacitor types and values can also be accommodated.
The MIC4950 supports safe start-up into a pre-biased output.
The MIC4950 is available in 10-pin 3mm x 4mm DFN package with an operating junction temperature range from -40°C to +125°C. The MIC4930 is pin-to-pin compatible with the 5A-rated MIC4950YFL.
Features
| Input voltage: 2.7V to 5.5V |
| 5A output current |
| Up to 95% efficiency |
| Up to 3.3MHz operation |
| Safe start-up into a pre-biased output |
| Power Good output |
| Ultra-fast transient response |
| Low output voltage ripple |
| Low RDS(ON) integrated MOSFET switches |
| 0.01µA shutdown current |
| Thermal shutdown and current limit protection |
| Output voltage as low as 0.7V |
| -40°C to +125°C junction temperature range |
| 3mm x 4mm DFN-10L |
Specifications
| Regulator Type | Step Down (Buck) |
|---|---|
| Switching Frequency (kHz) | 3300 |
| Input Voltage Range Min | 2.7 |
| Input Voltage Range Max | 5.5 |
| Output Current | 5000 |
| Temp Range Min | -40 |
| Temp Range Max | 125 |
| Vout Min (V) | 0.7 |
| Quiescent Current (mA) typ | 0.8 |
| Light Load Efficiency Mode | No |
| Automotive Rated | No |
| SHUTDOWN Current (µA) (Typ) | 0.01 |
| # of Outputs | 1 |
| Vfb (V) | 0.625 |
| Synchronous Rectifier | Yes |
Resources
Data Sheets |
|---|
| MIC4950 Data Sheet |
Application Notes |
|---|
| AN2526 - Application Guidelines for the Microchip Constant On-Time Regulators with Internal Ripple Injection |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.0 |
| Shipping Weight (kg) | 0.852457 |
| Lead Count | 8 |
| Package Type | SOIC |
| Package Width or Size | 3.9mm |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| 2.7V To 5.5V, 5A, 3.3Mhz Pol, 8 Soic 3.9Mm T/R Rohs Compliant: Yes |Microchip MIC4950YFM-TR | Newark Electronics |
| Conv DC-DC Single Step Down 2.7V 5.5V 8-Pin SOIC T/R | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC4950YFM-TR?
Additional datasheets, footprints and schematics for MIC4950YFM-TR are listed on our Part Details page. You can also find images and similar parts to MIC4950YFM-TR on this page.
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What category does MIC4950YFM-TR fall under?
The MIC4950YFM-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
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Is the MIC4950YFM-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC4950YFM-TR have stock available?
Authorised distributors including Newark Electronics and Avnet America have stock available or on a lead time for MIC4950YFM-TR.
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