MIC4685WR More Semiconductors - ICs by Microchip Technology
200kHz 3A SuperSwitcher™ Buck Regulator
| Status: | Active |
|---|---|
| Series: | MIC4685 |
| RoHS: | Compliant |
The MIC4685 is a high-efficiency 200kHz stepdown (buck) switching regulator. Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications. The MIC4685 achieves 3A of continuous current in the 7-lead SPAK package.
The thermal performance of the SPAK allows it to replace TO-220s and TO-263s (D2 PAKs) in many applications. The SPAK saves board space with a 36% smaller footprint than TO-263.
High efficiency is maintained over a wide output current range by utilizing a boost capacitor to increase the voltage available to saturate the internal power switch. As a result of this high efficiency, only the ground plane of the PCB is needed for a heat sink.
The MIC4685 allows for a high degree of safety. It has a wide input voltage range of 4V to 30V (34V transient), allowing it to be used in applications where input voltage transients may be present. Built-in safety features include over-current protection, frequency-foldback short-circuit protection, and thermal shutdown.
The MIC4685 is available in an 7-lead SPAK package with a junction temperature range of -40°C to +125°C.
Where to Buy
Prices starting from US$1.42
Features
| Low 2mm profile SPAK package |
| 3A continuous output current |
| Wide input voltage range: 4V to 30V (34V transient) |
| Fixed 200kHz PWM operation |
| Over 85% efficiency |
| Output voltage adjustable to 1.235V |
| All surface mount solution |
| Internally compensated with fast transient response |
| Over-current protection |
| Frequency foldback short-circuit protection |
| Thermal shutdown |
Specifications
| Regulator Type | Step Down (Buck) |
|---|---|
| pricing | 0 |
| Supported Output | 0 |
| Minimum Input Voltage (V) | 0 |
| Maximum Input Voltage (V) | 30 |
| Output Current (mA) Max | 0 |
| Maximum Frequency (kHz) | 0 |
| Vref (V) | 0 |
| Duty Cycle Min (%) | 0 |
| Duty Cycle Max (%) | 0.94 |
| Switching Frequency (kHz) | 200 |
| Input Voltage Range Min | 4 |
| Input Voltage Range Max | 30 |
| Output Current | 3000 |
| Temp Range Min | -40 |
| Temp Range Max | 125 |
| Vout Min (V) | 1.24 |
| Quiescent Current (mA) typ | 6 |
| Light Load Efficiency Mode | No |
| Switch current (A) typ | 0 |
| Automotive Rated | No |
| SHUTDOWN Current (µA) (Typ) | 5 |
| # of Outputs | 1 |
| Vfb (V) | 1.24 |
| Synchronous Rectifier | No |
| Pins | Packaging | 7 | SPAK |
| Temp Range | -40C to +125C |
| Packing Media | Tube (48) |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.5418 |
| Shipping Weight (kg) | 0.666667 |
| Lead Count | 7 |
| Package Type | SPAK |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| 3A Buck Regulator | Microchip Technology |
| Dc-Dc Conv, Buck, 200Khz, Spak-7 |Microchip MIC4685WR | Newark Electronics |
| MIC4685 Series 30 V 200 kHz 3 A SuperSwitcherÔ Buck Regulator - SPAK-7 | Future Electronics |
| Conv DC-DC Single Step Down 4V 30V 7-Pin SPAK Tube | Avnet America |
| DC-DC CONV, BUCK, 200KHZ, SPAK-7 | element14 |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC4685WR?
Additional datasheets, footprints and schematics for MIC4685WR are listed on our Part Details page. You can also find images and similar parts to MIC4685WR on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MIC4685WR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MIC4685WR price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does MIC4685WR fall under?
The MIC4685WR is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
You can view similar parts to MIC4685WR when available in the More Semiconductors - ICs range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the MIC4685WR you can contact the distributor directly for product support, shipping queries etc.
Is the MIC4685WR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC4685WR have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, Future Electronics, Avnet America and element14 have stock available or on a lead time for MIC4685WR.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for MIC4685WR often in real-time on the comparison pages.
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