mp1543dj MPS, mp1543dj Datasheet - Page 3

• Manufacturer Part Number: mp1543dj
• Description: 1.5a, 500khz Synchronous Rectified Step-up Converter
• Manufacturer: MPS

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