MIC4576-5.0WU More Semiconductors - ICs by Microchip Technology
200kHz 3.0A Step-down Regulator
| Status: | Active |
|---|---|
| Series: | MIC4576 |
| RoHS: | Compliant |
The MIC4576 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200kHz MIC4576 duplicates the pinout and function of the 52kHz LM2576. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.
The MIC4576 is available in 3.3V, and 5V fixed output versions or a 1.23V to 33V adjustable output version. Both versions are capable of driving a 3A load with excellent line and load regulation.
The feedback voltage is guaranteed to ±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified voltages and load conditions. The oscillator frequency is guaranteed to ±10%.
In shutdown mode, the regulator draws less than 200µA standby current. The regulator performs cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions.
This series of simple switch-mode regulators requires a minimum number of external components and can operate using a standard series of inductors. Frequency compensation is provided internally.
The MIC4576 is available in TO-220 (T) and TO-263 (U) packages for the industrial temperature range.
Where to Buy
Prices starting from US$2.62
| Distributor | Stock | ||
|---|---|---|---|
|
Farnell
from US$3.37
|
450
in stock
|
Buy Now |
|
Microchip Technology
from US$2.62
|
4,200
in stock
|
Buy Now |
|
Future Electronics
from US$3.33
|
750
in stock
|
Buy Now |
|
element14
from US$3.91
|
450
in stock
|
Buy Now |
|
Newark Electronics
from US$3.39
|
-
|
Buy Now |
|
Avnet America
from US$4.46
|
-
|
Buy Now |
|
|
Avnet Asia
-
|
-
|
Buy Now |
|
EBV Elektronik
-
|
-
|
Buy Now |
|
Avnet Silica
-
|
-
|
Buy Now |
Features
| Fixed 200kHz operation |
| 3.3V, 5V, and adjustable output versions |
| Voltage over specified line and load conditions: |
| Fixed version: ±3% max. output voltage |
| Adjustable version: ±2% max. feedback voltage |
| Guaranteed 3A switch current |
| Wide input voltage range: 4V to 36V |
| Wide output voltage range: 1.23V to 33V |
| Requires minimum external components |
| < 200µA typical shutdown mode |
| 75% efficiency (adjustable version > 75% typical) |
| Standard inductors are 25% of typical LM2576 values |
| Thermal shutdown |
| Overcurrent protection |
| 100% electrical thermal limit burn-in |
Specifications
| Regulator Type | Step Down (Buck) |
|---|---|
| pricing | 0 |
| Supported Output | 0 |
| Minimum Input Voltage (V) | 0 |
| Maximum Input Voltage (V) | 36 |
| Output Current (mA) Max | 0 |
| Maximum Frequency (kHz) | 0 |
| Vref (V) | 0 |
| Duty Cycle Min (%) | 0 |
| Duty Cycle Max (%) | 0.95 |
| Switching Frequency (kHz) | 200 |
| Input Voltage Range Min | 4 |
| Input Voltage Range Max | 36 |
| Output Current | 3000 |
| Temp Range Min | -40 |
| Temp Range Max | 85 |
| Vout Min (V) | 1.23 |
| Quiescent Current (mA) typ | 5 |
| Light Load Efficiency Mode | No |
| Switch current (A) typ | 0 |
| Automotive Rated | No |
| SHUTDOWN Current (µA) (Typ) | 50 |
| # of Outputs | 1 |
| Vfb (V) | 1.23 |
| Synchronous Rectifier | No |
| Pins | Packaging | 5 | DDPAK |
| Temp Range | -40C to +85C |
| Packing Media | Tube (50) |
Resources
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 1.4625 |
| Shipping Weight (kg) | 2.52 |
| Lead Count | 5 |
| Package Type | DDPAK |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| MIC4576 Series 36 V 200 kHz 3 A Surface Mount Simple Buck Regulator - TO-263-5 | Future Electronics |
| DC/DC CONV, BUCK, 200KHZ, TO-263-5 | element14 |
| Dc/Dc Conv, Buck, 200Khz, To-263-5 | Newark Electronics |
| 200KHZ 3.0A STEP-DOWN REGULATOR | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC4576-5.0WU?
Additional datasheets, footprints and schematics for MIC4576-5.0WU are listed on our Part Details page. You can also find images and similar parts to MIC4576-5.0WU on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MIC4576-5.0WU on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MIC4576-5.0WU price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does MIC4576-5.0WU fall under?
The MIC4576-5.0WU is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
You can view similar parts to MIC4576-5.0WU 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 MIC4576-5.0WU you can contact the distributor directly for product support, shipping queries etc.
Is the MIC4576-5.0WU RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC4576-5.0WU have stock available?
Authorised distributors including Microchip Technology, Future Electronics, element14, Farnell and Newark Electronics have stock available or on a lead time for MIC4576-5.0WU.
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