MP1530 – TRIPLE OUTPUT STEP-UP PLUS LINEAR REGULATORS FOR TFT BIAS
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Circuit of Figure 3, VIN = 5V, VMAIN = 13V, IMAIN = 200mA, VGL = -8.5V, IGL = 10mA, VGH = 27V,
IGH = 10mA, TA = +25C, unless otherwise noted.
Load Transient on
V
MAIN
I = 20mA - 200mA Step
MAIN
Normal Operation
I
MAIN
200mA/div.
V
SW
5V/div.
V
V
MAIN AC
MAIN AC
50mV/div.
100mV/div.
I
INDUCTOR
0.5A/div.
400ns/div.
Reference Voltage vs
Temperature
Fault Timer
V
Shorted to V
IN
MAIN
1.256
1.254
1.252
1.250
1.248
1.246
1.244
1.242
1.240
1.238
V
MAIN
5V/div.
V
CT
1V/div.
V
GL
10V/div.
V
GH
20V/div.
2ms/div.
-50
0
50
100
150
TEMPERATURE (°C)
Oscillator Frequency vs
Temperature
1.50
1.47
1.44
1.41
1.38
1.35
1.32
1.29
1.26
-50
0
50
100
150
TEMPERATURE (°C)
MP1530 Rev. 1.41
5/25/2011
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