Microchip MIC23031 Bedienungsanleitung
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2021 Microchip Technology Inc.DS20006538A-page 1
MIC23031
Features
•Input Voltage: 2.7V to 5.5V
•400mA Output Current
•Up to 93% Efficiency and 88% at 1mA
•21µA Typical Quiescent Current
•4MHz PWM Operation in Continuous Mode
•Ultra-Fast Transient Response
•Low Voltage Output Ripple
-20mV
PP
Ripple in HyperLight Load
®
Mode
-3mV Output Voltage Ripple in Full PWM
Mode
•0.01µA Shutdown Current
•MIC23031 Fixed and Adjustable Output Voltage
Options Available
•1.6mm x 1.6mm 6-Lead TDFN Package
•–40°C to +125°C Junction Temperature Range
Applications
•Mobile Handsets
•Portable Media/MP3 Players
•Portable Navigation Devices (GPS)
•WiFi/WiMax/WiBro Modules
•Digital Cameras
•Wireless LAN Cards
•USB-Powered Devices
•Portable Applications
General Description
The MIC23031 is a high-efficiency, 4MHz, 400mA
synchronous buck regulator with HyperLight Load
®
mode. HyperLight 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 1.6mm x 1.6mm TDFN package saves precious
board space and requires only three external
components.
The MIC23031 is designed for use with a very small
inductor, down to 0.47µH, and an output capacitor as
small as 2.2µF that enables a sub 1mm height.
The MIC23031 has a very low quiescent current of
21µA and achieves as high as 88% efficiency at 1mA.
At higher loads, the MIC23031 provides a constant
switching frequency around 4MHz while achieving
peak efficiencies up to 93%.
The MIC23031 is available in a 6-pin 1.6mm x 1.6mm
TDFN package with an operating junction temperature
range of –40°C to +125°C.
Typical Application Circuit
Efficiency V
OUT
= 2.5V
4 MHz PWM 400 mA Buck Regulator with HyperLight Load
®
Produktspezifikationen
| Marke: | Microchip |
| Kategorie: | Nicht kategorisiert |
| Modell: | MIC23031 |
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