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Manufacturer Part #
MIC4576WU
MIC4576 Series 36 V 200 kHz 3 A Surface Mount Simple Buck Regulator - TO-263-5
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| Mfr. Name: | Microchip | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:50 per Tube Package Style:TO-263-5 (D2PAK5) Mounting Method:Through Hole | ||||||||||
| Date Code: | 1135 | ||||||||||
Product Specification Section
Product Specification
Shipping Information:
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ECCN:
EAR99
PCN Information:
N/A
File
Date
Part Status:
Active
Active
Technical Attributes
Attributes Table
| Topology: | Buck |
| Input Voltage: | 4V to 36V |
| Output Current-Max: | 3A |
| Output Type: | Adjustable |
| Switching Frequency-Max: | 200kHz |
| Operating Temp Range: | -40°C to +85°C |
| Duty Cycle-Max: | 95% |
| Efficiency: | 77% |
| No. of Outputs: | 1 |
| Quiescent Current: | 10mA |
| Storage Temperature Range: | -65°C to +150°C |
| Package Style: | TO-263-5 (D2PAK5) |
| Mounting Method: | Through Hole |
Features & Applications
The MIC4576WU is a fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200 kHz MIC4576 duplicates the pinout and function of the 52 kHz LM2576. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.
The MIC4576 is available in 3.3 V, and 5 V fixed output versions or a 1.23 V to 33 V adjustable output version. Both versions are capable of driving a 3 A load with excellent line and load regulation.
Features:
- Fixed 200 kHz operation
- 3.3 V, 5 V, and adjustable output versions
- Voltage over specified line and load conditions:
- Fixed version: ±3% max. output voltage
- Adjustable version: ±2% max. feedback voltage
- Guaranteed 3 A switch current
- Wide 4 V to 36 V input voltage range
- Wide 1.23 V to 33 V output voltage range
- Requires minimum external components
- < 200 µA 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
Applications:
- Simple high-efficiency step-down (buck) regulator
- Efficient preregulator for linear regulators
- On-card switching regulators
- Positive-to-negative converter (inverting buck-boost)
- Battery Charger
- Negative boost converter
- Step-down to 3.3 V for Intel Pentium™ and similar microprocessors
Pricing Section
Global Stock:
150
Germany (Online Only):
150
On Order:
0
Factory Lead Time:
N/A
Quantity
Web Price
50
$2.29
100+
$2.08
Product Variant Information section
Available Packaging
Package Qty:
50 per Tube
Package Style:
TO-263-5 (D2PAK5)
Mounting Method:
Through Hole
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