LT1943 LINER [Linear Technology], LT1943 Datasheet - Page 5

• Manufacturer Part Number: LT1943
• Description: High Current Quad Output Regulator for TFT LCD Panels
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR A CE CHARACTERISTICS
600
500
400
300
200
100
0.8
0.7
0.6
0.5
0.4
0.3
0.2
6.0
5.5
5.0
4.5
4.0
3.5
3.0
0
–50
SW2 V
0
MINIMUM Input Voltage to Start,
V
0
SW3 Current Limit
T
OUT
T
A
A
–25
= 25 C
= 25 C
0.5
= 3.3V
20
CESAT
LOAD CURRENT (mA)
0
TEMPERATURE ( C)
1.0
SW2 CURRENT (A)
40
25
1.5
50
60
2.0
75
W
80
2.5
100
1943 G10
1943 G04
1943 G07
U
3.0
100
125
500
400
300
200
100
100
0.8
0.7
0.6
0.5
0.4
0.3
0.2
80
60
40
20
0
0
–50
0
0
SW3 V
SW4 Current Limit
BOOST Pin Current
T
T
A
A
–25
= 25 C
= 25 C
0.5
CESAT
0.1
0
TEMPERATURE ( C)
SW3 CURRENT (A)
1.0
SW1 CURRENT (A)
25
0.2
1.5
50
2.0
75
0.3
2.5
100
1943 G11
1943 G05
1943 G08
0.4
125
3.0
600
500
400
300
200
100
500
400
300
200
100
5.0
4.5
4.0
3.5
3.0
2.5
0
0
–50
0
0
SW2 Current Limit
SW1 V
SW4 V
T
T
A
A
–25
= 25 C
= 25 C
0.5
CESAT
CESAT
0.1
0
TEMPERATURE ( C)
1.0
SW1 CURRENT (A)
SW4 CURRENT (A)
25
1.5
0.2
50
LT1943
2.0
75
0.3
2.5
100
1943 G09
1943 G06
1943 G12
5
1943i
125
3.0
0.4