鈥?/div>
High Efficiency: Up to 95%
1MHz Constant Switching Frequency
800mA 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 5-Pin TSOT23 Package
Cellular and Smart Phones
Microprocessors and DSP Core Supplies
PDAs
MP3 Players
Digital Still and Video Cameras
Portable Instruments
APPLICATIONS
EVALUATION BOARD REFERENCE
Board Number
EV2105DJ-00A
Dimensions
2.0鈥漍 x 2.0鈥漎 x 0.5鈥漐
鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
Efficiency vs
Load Current
100
INPUT
2.5V to 6V
4
IN
SW
3
MP2105
OFF ON
1
EN
GND
2
FB
5
EFFICIENCY (%)
OUTPUT
1.8V
800mA
90
80
70
60
50
40
30
20
10
0
V
IN
= 3.3V
V
IN
= 4.2V
MP2105_TAC_S01
10
100
LOAD CURRENT (mA)
1000
MP2105-EC01
MP2105 Rev. 1.2
8/19/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2005 MPS. All Rights Reserved.
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