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

Application Circuit Diagram - Microchip Technology MIC33050 Internal Inductor PWM Buck Power Modules

Functional Block Diagrams

Block Diagram - Microchip Technology MIC33050 Internal Inductor PWM Buck Power Modules

Package Types

Microchip Technology MIC33050 Internal Inductor PWM Buck Power Modules
Publicēts: 2021-04-28 | Atjaunināts: 2022-03-11