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參數(shù)資料
| 型號： | EV0077 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 1.3MHz Low Power Boost Converter |
| 中文描述： | 1.3MHz升壓轉(zhuǎn)換器的低功耗 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 155K |
| 代理商： | EV0077 |
EV0077 (MP1541)
1.3MHz Low Power
Boost Converter
EVALUATION BOARD - INITIAL RELEASE
FEATURES
On Board Power MOSFET
Uses Tiny Capacitors and Inductors
1.3MHz Fixed Switching Frequency
Internally Compensated
Internal Soft Start
Operates with Input Voltage as Low as 2.5V
and Output Voltage as High as 22V
12V at 200mA from 5V Input
UVLO, Thermal Shutdown
Internal Current Limit
Available in a TSOT23-5 Package
APPLICATIONS
Camera Phone Flash
Handheld Computers and PDAs
Digital Still and Video Cameras
External Modems
Small LCD Displays
White LED Driver
06/04, Rev. 1.0
www.MonolithicPower.com
1
Monolithic Power Systems
GENERAL DESCRIPTION
The EV0077 Evaluation Board is designed to
demonstrate the capabilities of MPS’ MP1541.
The MP1541 is a 5-pin thin SOT23 current
mode step up converter intended for small, low
power applications. The MP1541 switches at
1.3MHz and allows the use of tiny, low cost
capacitors and inductors 2mm or less in height.
Internal soft start results in small inrush current
and extends battery life. The MP1541 operates
from an input voltage as low as 2.5V and can
generate 12V at up to 200mA from a 5V supply.
The MP1541 includes under-voltage lockout,
current limiting, and thermal overload protection
to prevent damage in the event of an output
overload. The MP1541 is available in a small
5-pin TSOT23 package.
ELECTRICAL SPECIFICATION
Parameter
Symbol
Supply Voltage
V
IN
Output Voltage
V
OUT
Output Current
I
OUT
Value
2.5 – 6
12
0.2
Units
V
V
A
, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC
Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
EV0077 EVALUATION BOARD
(2.5”X x 2.5”Y x 0.8”Z)
Board Number
EV0077 Rev. A
MPS IC Number
MP1541
100
95
90
85
80
75
70
65
60
55
50
E
0
75
150 225
LOAD CURRENT (mA)
300
375
450
EV0077_MP1541_PC01
Efficiency vs Load Current
V
IN
= 3.3V
V
IN
= 5V
V
IN
= 4.2V
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