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參數(shù)資料
| 型號： | MP1543 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 1.5A, 500KHz Synchronous Rectified Step-up Converter |
| 中文描述： | 1.5A的，500KHz的同步整流升壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 299K |
| 代理商： | MP1543 |
MP1543 — 1.5A, 500KHZ SYNCHRONOUS RECTIFIED STEP-UP CONVERTER
MP1543 Rev. 1.0
1/11/2006
www.MonolithicPower.com
3
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
TYPICAL PERFORMANCE CHARACTERISTICS
Circuit on front page, V
IN
= 2.4V, V
OUT
= 3.3V, T
A
= +25
°
C, unless otherwise noted.
V
SW
2V/div.
V
AC
10mV/div.
I
INDUCTOR
MP1543-TPC03
Discontinuous Mode
Operation
I
LOAD
= 25mA
MP1543-TPC04
Continuous Mode
Operation
I
LOAD
= 400mA
V
AC
100mV/div.
I
0.2A/div.
V
AC
100mV/div.
I
0.2A/div.
MP1543-TPC05
Transient Response
I
LOAD
= 40mA to 400mA Step
w/o Feed-Forward Capacitor
MP1543-TPC06
Transient Response
I
LOAD
= 40mA to 400mA Step
with 220pF Feed-Forward Capacitor
V
OUT
=5V
V
IN
=1.8V
V
IN
=2.4V
V
IN
=2.4V
V
IN
=3.6V
V
IN
=4.2V
V
IN
=3V
100
90
80
70
60
50
40
30
E
1
10
100
1000
LOAD CURRENT (mA)
MP1543-TPC02
Efficiency vs
Load Current
100
90
80
70
60
50
40
30
E
1
10
100
1000
LOAD CURRENT (mA)
MP1543-TPC01
Efficiency vs
Load Current
V
SW
2V/div.
V
AC
50mV/div.
I
INDUCTOR
MP1543-TPC07
MP1543-TPC08
Feedback Voltage vs
Temperature
Switching Frequency
vs Temperature
V
2V/div.
V
SW
2V/div.
V
OUT
2V/div.
1.190
1.186
1.182
1.178
1.174
1.170
F
-40
40
0
80
120
TEMPERATURE (
°
C)
MP1543-TPC09
540
530
520
510
500
490
480
470
460
S
-40
40
0
80
120
TEMPERATURE (
°
C)
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