Microchip Technology MIC23051
The MIC23051 is a high efficiency 600 mA PWM synchronous buck (step-down) regulator featuring HyperLight Load®, a patented 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 MIC23051 has an output voltage scaling feature that toggles between two different voltage levels. The MIC23051 also has a very low typical quiescent current draw of 20 µA and can achieve over 85% efficiency even at 1 mA.| Part No. | MIC23051 |
|---|---|
| Datasheet | MIC23051 Download |
| Manufacturer |  Microchip Technology |
| Description | 4MHz PWM Buck Regulator |
| Buy | Stock & Price |
FEATURES
● Input Voltage: 2.7V to 5.5V● 600 mA Output Current
● Fixed Output Voltage 1.25V, 1.2V, 1.4V and 1.8V with Voltage Scaling Down Using VSC pin to: 0.95V, 1.0V, 1.15V and 1.0V
● Ultra-Fast Transient Response
● 20 µA Typical Quiescent Current
● 4 MHz CCM PWM Operation in Normal Mode
● 0.47 µH to 2.2 µH Inductor
● Low Voltage Output Ripple - 25 mVPP Ripple in HyperLight Load® Mode - 3 mV Output Voltage Ripple in Full PWM Mode
● >93% Efficiency
● ~85% at 1 mA
● Micropower shutdown
● Available in 8-pin 2 mm x 2 mm DFN Package
● –40°C to +125°C Junction Temperature Range
APPLICATIONS
● Cellular Phones● Digital Cameras
● Portable Media Players
● Wireless LAN Cards
● WiFi/WiMax/WiBro Modules
● USB Powered Devices
GENERAL DESCRIPTION
The device allows operation with a tiny inductor ranging from 0.47 µH to 2.2 µH and uses a small output capacitor that enables a sub 1 mm height solution. In contrast to traditional light load schemes, HyperLight Load® architecture does not need to trade...
