鈥?/div>
High Efficiency: Up to 95%
1MHz Constant Switching Frequency
1A Available Load Current
2.5V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Current Mode Control
Short Circuit Protection
Thermal Fault Protection
<0.1碌A Shutdown Current
Space Saving 3mm x 3mm QFN6 Package
Cellular and Smart Phones
Microprocessors and DSP Core Supplies
PDAs
MP3 Players
Digital Still and Video Cameras
Portable Instruments
APPLICATIONS
鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
V
IN
2.5V to 6V
5
VINA
6
3
Efficiency vs
Load Current
100
90
EN
V
IN
= 3.3V
V
IN
= 4.2V
EN
EFFICIENCY (%)
80
70
60
50
40
30
20
10
0
10
MP2112
4
2
VINB
SW
V
OUT
1.8V/1A
GND
FB
1
MP2112_TAC_S01
100
LOAD CURRENT (mA)
1000
MP2112-EC01
MP2112 Rev. 1.2
3/6/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2006 MPS. All Rights Reserved.
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