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.
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 |
Regulator Type | Step Down (Buck) |
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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) |
JEDEC Indicator | e3 |
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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 |
IC, BUCK REG, 3.0A, 3.3V | Farnell |
Ic, Buck Reg, 3.0A, 3.3V | Newark Electronics |
MIC4576 Series 36 V 200 kHz 3 A Surface Mount Simple Buck Regulator - TO-263-5 | Future Electronics |
Conv DC-DC Single Step Down 4V to 36V 5-Pin TO-263 TUBE | Avnet America |
Where can I find additional details, specifications and documents for a MIC4576-3.3WU?
Additional datasheets, footprints and schematics for MIC4576-3.3WU are listed on our Part Details page. You can also find images and similar parts to MIC4576-3.3WU on this page.
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Is the MIC4576-3.3WU RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC4576-3.3WU have stock available?
Authorised distributors including Microchip Technology, Farnell, Newark Electronics, Future Electronics and Avnet America have stock available or on a lead time for MIC4576-3.3WU.
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