MIC23031 Datasheet | Microchip Technology

Features - Input Voltage: 2.7V to 5.5V - 400 m A Output Current - Up to 93% Efficiency and 88% at 1 m A - 21 µA Typical Quiescent Current - 4 MHz PWM Operation in Continuous Mode - Ultra-Fast Transient Response - Low Voltage Output Ripple - 20 m VPP Ripple in Hyper Light Load® Mode - 3 m V Output Voltage Ripple in Full PWM Mode - 0.01 µA Shutdown Current - MIC23031 Fixed and Adjustable Output Voltage Options Available - 1.6 mm x 1.6 mm 6-Lead TDFN Package - - 40°C to +125°C Junction Temperature Range Applications - Mobile Handsets - Portable Media/MP3 Players - Portable Navigation Devices (GPS) - Wi Fi/Wi Max/Wi Bro Modules - Digital Cameras - Wireless LAN Cards - USB-Powered Devices - Portable Applications General Description The MIC23031 is a high-efficiency, 4 MHz, 400 m A synchronous buck regulator with Hyper Light Load® mode. Hyper Light Load provides very high efficiency at light loads and ultra-fast transient response that is perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is the very low output ripple voltage throughout the entire load range with the use of small output capacitors. The tiny 1.6 mm x 1.6 mm TDFN package saves precious board space and requires only three external ponents. The MIC23031 is designed for use with a very small inductor, down to 0.47 µH, and an output capacitor as small as 2.2 µF that enables a sub 1 mm height. The MIC23031 has a very low quiescent current of 21 µA and achieves as high as 88% efficiency at 1 m A. At higher loads, the MIC23031 provides a constant switching frequency around 4 MHz while achieving peak efficiencies up to 93%. The MIC23031 is available in a 6-pin 1.6 mm x 1.6 mm TDFN package with an operating junction temperature range of - 40°C to +125°C. Typical Application Circuit Efficiency VOUT = 2.5V  2021 Microchip Technology Inc. DS20006538A-page 1 Package Types MIC23031, Fixed 6-Lead TDFN (MT) (Top View) MIC23031, Adjustable 6-Lead TDFN (MT)...