Microchip MIC4576-3.3WT
Manufacturer No:
MIC4576-3.3WT
Manufacturer:
Microchip
Package:
TO-220-5
Description:
200kHz 3.0A Step-down Regulator
Quantity:
In Stock :6601
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Shipped from：HK Warehouse
Expected Shipping：Thu, May 28 - Fri, May 29, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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MIC4576-3.3WT Information
Microchip MIC4576-3.3WT technical specifications, attributes, parameters and parts with similar specifications to Microchip MIC4576-3.3WT.
- Type
- Parameter
- Max Duty Cycle (%)
- 95.0
- Input Voltage Range Max V (volt)
- 36
- Input Voltage Range Min V (volt)
- 4
- # of Outputs
- 1
- Output Current
- 3000
- Driver Type
- Buck
- Quiescent Current µA (microampere)
- 5
- Synchronous Rectifier
- No
- Temp Range Max °C (degrees Celsius)
- 85
- Temp Range Min °C (degrees Celsius)
- -40
- Type
- Parameter
- VOUT Max V (volt)
- 33.0
- VFB V (volt)
- 1.23
- VOUT Min V (volt)
- 1.23
- Vref (V)
- 0
Download datasheets and manufacturer documentation for Microchip MIC4576-3.3WT.
Application Notes:
Data Sheets:
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.
- 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
AIChipLink – Your Trusted Electronic Components Distributor
12.28 M
Listed Part Number
3,000+
Leading Manufacturers
4.9 M
In-stock SKU
15,000+
Warehouse Area(㎡)
