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MIC33050

Microchip

4MHz Internal Inductor PWM Buck Power Module

MIC33050 4 MHz Internal Inductor PWM Buck Power Module with HyperLight Load® Features • Input Voltage: 2.7V to 5.5V • 6...


MIC33050

Microchip


Octopart Stock #: O-1526272

Findchips Stock #: 1526272-F

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Description
MIC33050 4 MHz Internal Inductor PWM Buck Power Module with HyperLight Load® Features • Input Voltage: 2.7V to 5.5V • 600 mA Output Current • Fixed and Adjustable Output Voltage Options • No External Inductor Required • Ultra-Fast Transient Response • 20 µA Quiescent Current • 4 MHz Switching in PWM Mode • Low Output Voltage Ripple • >93% Peak Eff
More View iciency • >85% Efficiency at 1 mA • Micropower Shutdown • 12-Pin 3 mm x 3 mm HDFN • –40°C to +125°C Junction Temperature Range Applications • MPU Power • Portable Instrumentation • Wearable Devices • Space-Constrained MCU Systems • RF Modules • USB-Powered Devices General Description The MIC33050 is a high-efficiency 600 mA PWM synchronous buck (step-down) regulator with internal inductor featuring HyperLight Load®, a switching scheme that offers best-in-class light load efficiency and transient performance while providing very small external components and low output ripple at all loads. The MIC33050 also has a very low typical quiescent current of 20 µA and can achieve over 85% efficiency even at 1 mA. In contrast to traditional light load schemes, the HyperLight Load® architecture does not trade off control speed to obtain low standby currents and in doing so, the device only needs a small output capacitor to absorb the load transient as the powered device goes from light load to full load. At higher loads, the MIC33050 provides a nearly constant switching frequency of greater than 4 MHz while providing peak efficiencies greater than 93%. The MIC33050 is available in fixed and adjustable output voltages and comes in a 12-pin 3 mm x 3 mm HDFN with a junction operating range of –40°C to +125°C.  2018 Microchip Technology Inc. DS20006120A-page 1 MIC33050 Typical Application Circuits Fixed Output MIC33050 Adjustable Output MIC33050 R1 R2 Package Types 12-Pin 3 mm x 3 mm HDFN Fixed (Top View) 12-Pin 3 mm x 3 mm HDFN Adjustable (Top View) DS20006120A-page 2  2018 Microchip Technology Inc. MIC33050 Functional Block Diagrams Simplified MIC33050 Fixed Functional Block Diagram Simplified MIC33050 Adjustable Functional Block Diagram  2018 Microchip Technology Inc. DS20006120A-page 3 MIC33050 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Supply Voltage (VIN)...+6V Output Switch Voltage (VSW) ....+6V Output Switch Current (ISW) ...2A Logic Enable Input Voltage (VEN)






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