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MP1543 Datasheet(PDF) 3 Page - Monolithic Power Systems

Part # MP1543
Description  1.5A, 500KHz Synchronous Rectified Step-up Converter
PDF  9 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP1543 Datasheet(HTML) 3 Page - Monolithic Power Systems

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MP1543 — 1.5A, 500KHZ SYNCHRONOUS RECTIFIED STEP-UP CONVERTER
MP1543 Rev. 1.0
www.MonolithicPower.com
3
1/11/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
TM
TYPICAL PERFORMANCE CHARACTERISTICS
Circuit on front page, VIN = 2.4V, VOUT = 3.3V, TA = +25°C, unless otherwise noted.
VSW
2V/div.
VOUT AC
10mV/div.
IINDUCTOR
0.1A/div.
MP1543-TPC03
Discontinuous Mode
Operation
ILOAD = 25mA
MP1543-TPC04
Continuous Mode
Operation
ILOAD = 400mA
VOUT AC
100mV/div.
ILOAD
0.2A/div.
VOUT AC
100mV/div.
ILOAD
0.2A/div.
MP1543-TPC05
Transient Response
ILOAD = 40mA to 400mA Step
w/o Feed-Forward Capacitor
MP1543-TPC06
Transient Response
ILOAD = 40mA to 400mA Step
with 220pF Feed-Forward Capacitor
VOUT=5V
VIN=1.8V
VIN=2.4V
VIN=2.4V
VIN=3.6V
VIN=4.2V
VIN=3V
100
90
80
70
60
50
40
30
1
10
100
1000
LOAD CURRENT (mA)
MP1543-TPC02
Efficiency vs
Load Current
100
90
80
70
60
50
40
30
1
10
100
1000
LOAD CURRENT (mA)
MP1543-TPC01
Efficiency vs
Load Current
VSW
2V/div.
VOUT AC
50mV/div.
IINDUCTOR
0.2A/div.
MP1543-TPC07
MP1543-TPC08
Feedback Voltage vs
Temperature
Switching Frequency
vs Temperature
VEN
2V/div.
VSW
2V/div.
VOUT
2V/div.
1.190
1.186
1.182
1.178
1.174
1.170
-40
40
0
80
120
TEMPERATURE (
°C)
MP1543-TPC09
540
530
520
510
500
490
480
470
460
-40
40
0
80
120
TEMPERATURE (
°C)



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