MAX1606 Maxim, MAX1606 Datasheet - Page 5

• Manufacturer Part Number: MAX1606
• Description: 28V Internal Switch LCD Bias Supply with True Shutdown
• Manufacturer: Maxim

(V
CC
100
600
500
400
300
200
100
100
90
80
70
60
50
40
90
80
70
60
50
40
0
= 3.3V, V
0.5
2.0
0
V
EFFICIENCY vs. SUPPLY VOLTAGE
PEAK INDUCTOR CURRENT LIMIT
CC
EFFICIENCY vs. LOAD CURRENT
2.5
= 3.3V
5
1.5
vs. BATTERY VOLTAGE
LIM = OPEN
LIM = GND
BATT
3.0
LOAD CURRENT (mA)
10
L1 = 10µH, LIM = V
L1 = 100µH, LIM = OPEN
(L1 = 47µH)
2.5
3.5
V
= 3.6V, L1 = 10µH, SHDN = LIM = V
V
BATT
_______________________________________________________________________________________
I
OUT
CC
15
I
OUT
(V)
(V)
= 1mA
4.0
3.5
= 5mA
LIM = OPEN
LIM = GND
20
LIM = V
LIM = V
4.5
28V Internal Switch LCD Bias Supply
CC
4.5
25
CC
5.0
CC
5.5
5.5
30
100
180
160
140
120
100
100
90
80
70
60
50
40
30
20
80
60
40
20
90
80
70
60
50
40
Typical Operating Characteristics (continued)
0
0
0
0
EFFICIENCY vs. BATTERY VOLTAGE
EFFICIENCY vs. LOAD CURRENT
CC
1
5
1
vs. SUPPLY VOLTAGE
, V
SUPPLY CURRENT
LIM = OPEN
LOAD CURRENT (mA)
LIM = GND
OUT(NOM)
10
2
(L1 = 100µH)
2
V
V
BATT
CC
L1 = 10µH, LIM = V
L1 = 100µH, LIM = OPEN
I
15
OUT
3
(V)
(V)
3
= 5mA
= 18V (Figure 3), T
I
20
OUT
4
LIM = V
4
= 1mA
with True Shutdown
CC
25
5
CC
5
30
6
A
100
600
500
400
300
200
100
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
= +25°C, unless otherwise noted.)
90
80
70
60
50
40
0
0
2.0
0
0
V
BATT
PEAK INDUCTOR CURRENT LIMIT
EFFICIENCY vs. LOAD CURRENT
LIM = GND
2.5
= 3.6V
5
5
vs. SUPPLY VOLTAGE
vs. LOAD CURRENT
3.0
SUPPLY CURRENT
LIM = GND
LOAD CURRENT (mA)
LOAD CURRENT (mA)
(125mA)
LIM = OPEN
(L1 = 10µH)
10
10
3.5
V
CC
LIM = OPEN
(250mA)
(V)
4.0
15
15
LIM = V
LIM = V
LIM = OPEN
LIM = GND
(500mA)
4.5
LIM = V
20
20
CC
CC
5.0
CC
25
5.5
25
5