MAX1518 Maxim Integrated Products, MAX1518 Datasheet - Page 8

• Manufacturer Part Number: MAX1518
• Description: (MAX1516 - MAX1518) TFT-LCD DC-DC Converters
• Manufacturer: Maxim Integrated Products

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4
TFT-LCD DC-DC Converters with
Operational Amplifiers
(Circuit of Figure 1. V
unless otherwise noted.)
8
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
0
_______________________________________________________________________________________
GATE-ON REGULATOR LOAD REGULATION
0
A: V
B: INDUCTOR CURRENT, 1A/div
MAIN
RESPONSE TO OVERLOAD
, 5V/div
TIMER DELAY LATCH
5
LOAD CURRENT (mA)
55ms
10ms/div
IN
10
= 5V, V
15
MAIN
MAX1516 toc06
= 13V, V
20
A
0V
B
0A
GON
-0.25
1.253
1.252
1.251
1.250
1.249
1.248
1.247
1.00
0.75
0.50
0.25
Typical Operating Characteristics (continued)
= 24V, V
0
GATE-OFF REGULATOR LINE REGULATION
-16
0
V
I
GOFF
GOFF
REF VOLTAGE LOAD REGULATION
GOFF
= 50mA
10
= -8V
-14
LOAD CURRENT (µA)
INPUT VOLTAGE (V)
= -8V, V
20
-12
OUT1
30
-10
= V
40
OUT2
-8
50
= V
OUT3
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.2
= V
0
0
GATE-OFF REGULATOR LOAD REGULATION
23
GATE-ON REGULATOR LINE REGULATION
0
OUT4
24
10
= V
25
LOAD CURRENT (mA)
OUT5
INPUT VOLTAGE (V)
20
26
= 6.5V, T
27
30
V
I
GON
GON
28
A
= 20mA
40
= +25°C
= 23.5V
29
30
50