MIC4685WR More Semiconductors - ICs by Microchip Technology

200kHz 3A SuperSwitcher™ Buck Regulator

Status: Active
Series: MIC4685
RoHS: Compliant
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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.

Prices starting from US$1.44


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$3.25
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Logo for Future Electronics Future Electronics US$3.09
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Logo for Avnet America Avnet America US$3.78
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Logo for Microchip Technology Microchip Technology US$2.74
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Logo for element14 element14 US$3.29
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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)

Resources


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

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
3A Buck Regulator | Microchip Technology
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 Newark Electronics, Future Electronics, Avnet America, Microchip Technology and element14 have stock available or on a lead time for MIC4685WR.

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