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 8-pin SOIC and 10-pin 3mm — 4mm DFN packages with an operating junction temperature range from -40°C to +125°C. The MIC4930 is pin-to-pin compatible with the 5A-rated MIC4950YFL.
产品特性
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MIC4950 Data Sheet | Data Sheets | 11/05/2015 | 1134KB |
Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
---|---|---|---|---|---|---|---|---|---|
MIC4950YFL-TR | 10 | VDFN | -40C to +125C | T/R | ** | ** | ** | ** | ** |
PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
---|---|---|---|---|---|---|---|---|---|
MIC4950YFM-T5 | 0.852457 | 8 | SOIC | 3.9mm | NiPdAu | e4 | |||
MIC4950YFM-TR | 0.852457 | 8 | SOIC | 3.9mm | NiPdAu | e4 | |||
MIC49500-0.9WR | 0.666667 | 7 | SPAK | - | Matte Tin | e3 | |||
MIC49500-1.2WR | 0.666667 | 7 | SPAK | - | Matte Tin | e3 | |||
MIC49500-0.9WR-TR | 1.440000 | 7 | SPAK | - | Matte Tin | e3 | |||
MIC49500WR | 0.666667 | 7 | SPAK | - | Matte Tin | e3 | |||
MIC49500-1.2WR-TR | 1.440000 | 7 | SPAK | - | Matte Tin | e3 | |||
MIC49500WR-TR | 1.440000 | 7 | SPAK | - | Matte Tin | e3 | |||
MIC4950YFL-TR | 0.000000 | 10 | VDFN | 3x4x0.9mm | NiPdAu | e4 | |||
MIC4950YFL-T5 | 0.000000 | 10 | VDFN | 3x4x0.9mm | NiPdAu | e4 |