Microchip Technology MIC33050 Internal Inductor PWM Buck Power Modules
Microchip Technology MIC33050 Internal Inductor PWM Buck Power Modules feature HyperLight Load®. This switching scheme offers light load efficiency and transient performance while providing minimal external components and a low output ripple at all loads. The MIC33050 delivers a very low typical quiescent current of 20µA and can achieve over 85% efficiency even at 1mA.The HyperLight Load architecture does not trade off control speed to obtain low standby currents. Thus the device only needs a small output capacitor to absorb the load transient as the powered device goes from light load to full load. The MIC33050 offers a nearly constant switching frequency of greater than 4MHz while providing peak efficiencies greater than 93% at higher loads.
The MIC33050 is available in fixed and adjustable output voltages and is housed in a 12-pin 3mm x 3mm HDFN with a junction operating range of –40°C to +125°C.
Features
- 2.7V to 5.5V Input voltage
- 600mA Output current
- Fixed and adjustable output voltage options
- No external inductor required
- Ultra-fast transient response
- 20µA Quiescent current
- 4MHz Switching in PWM mode
- Low output voltage ripple
- >93% Peak efficiency
- >85% Efficiency at 1mA
- Micropower shutdown
- 12-Pin 3mm x 3mm 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
Typical Application Circuits
Functional Block Diagrams
Package Types
Published: 2021-04-28
| Updated: 2022-03-11
