Microchip Technology MIC4576
The MIC4576 is a series of easy-to-use 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.| Part No. | MIC4576 |
|---|---|
| Datasheet | MIC4576 Download |
| Manufacturer |  Microchip Technology |
| Description | 3A Buck Regulator |
| Buy | Stock & Price |
FEATURES
● Fixed 200 kHz Operation● 3.3V, 5V, and Adjustable Output Versions
● Voltage Over Specified Line and Load Conditions: - Fixed version: ±3% maximum output voltage - Adjustable version: ±2% maximum feedback voltage
● Guaranteed 3A Switch Current
● Wide 4V to 36V Input Voltage Range
● Wide 1.23V to 33V 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 Inductor 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 3.3V for Intel Pentium™ and Similar Microprocessors TAB
GENERAL DESCRIPTION
The MIC4576 is available in 3.3V, and 5V fixed output versions or a 1.23V to 33V adjustable output version.
