TM
MP1540 – 1.3MHz, 18V STEP-UP CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = VEN = 5V, TA = +25°C unless specified otherwise.
Feedback Voltage vs
Frequency vs
Temperature
Temperature
1.270
1.6
1.5
1.4
1.3
1.2
1.1
1.0
1.260
1.250
1.240
1.230
-50
0
50
100
150
-50
0
50
100
150
TEMPERATURE (°C)
TEMPERATURE (°C)
MP1540_TPC01
MP1540_TPC02
Maximum Duty Cycle vs
Temperature
Supply Current vs
Temperature
85.0
84.6
84.2
83.8
83.4
83.0
82.6
750
700
650
600
550
500
-50
0
50
100
150
-50
0
50
100
150
TEMPERATURE (°C)
TEMPERATURE (°C)
MP1540_TPC03
MP1540_TPC04
R
vs
)
Current Limit vs
Duty Cycle
(
DS ON
Input Voltage
0.80
0.75
0.70
0.65
0.60
0.55
0.50
1.6
1.5
1.4
1.3
1.2
1.1
1.0
2
3
4
5
6
30
40
50
60
70
80
INPUT VOLTAGE (V)
DUTY CYCLE (%)
MP1540_TPC05
MP1540_TPC06
MP1540 Rev. 1.1
2/14/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
3
MPS [ MONOLITHIC POWER SYSTEMS ]
