Microchip MIC23030 Manual


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2021 Microchip Technology Inc. DS20006488A-page 1
MIC23030
Features
Input Voltage: 2.7V to 5.5V
400 mA Output Current
Up to 91% Efficiency and 83% at 1 mA
21 µA Typical Quiescent Current
8 MHz PWM Operation in Continuous Mode
Ultra-Fast Transient Response
Low Voltage Output Ripple
- 14 mVPP Ripple in HyperLight Load® Mode
- 5 mV Output Voltage Ripple in Full PWM
Mode
Fully Integrated MOSFET Switches
0.01 µA Shutdown Current
Thermal Shutdown and Current-Limit Protection
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)
WiFi/WiMax/WiBro Modules
Digital Cameras
Wireless LAN Cards
USB-Powered Devices
Portable Applications
General Description
The MIC23030 is a high-efficiency, 8 MHz, 400 mA
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 1.6 mm x 1.6 mm TDFN package saves precious
board space and requires only three external
components.
The MIC23030 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 MIC23030 has a very low quiescent current of
21 µA and achieves as high as 83% efficiency at 1 mA.
At higher loads, the MIC23030 provides a constant
switching frequency around 8 MHz while achieving
peak efficiencies up to 91%.
The MIC23030 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
Fixed Output MIC23030
SW
SNS
PGND
GN
D
V
OUT
AGND
U1 MIC23030
VIN
V
IN
2
.7V to 5.5V
EN
C1
C2
L1
EN
GND
1
4
2
5 6
3
50
60
70
80
90
100
1 10 100 100
0
EFFICIENCY (%)
OUTPUT CURRENT (mA)
L = 0.47μH
COUT = 4.7μF
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
Efficiency VOUT = 2.5V
8 MHz PWM 400 mA Buck Regulator with HyperLight Load
®


Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MIC23030

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