Datasheet

18
LTC1693
TYPICAL APPLICATIONS
U
Charge Pump Tripler
Output Voltage
Efficiency
3
4
8
V
CC
= 5V
V
CC
= 5V
C1
680pF
C2
1µF
C3
1µF
C5
1µF
+
C4
3.3µF
+
C
L
47µF
1693 TA09a
V
OUT
R1, C1 SET THE OSCILLATION FREQUENCY AT 150kHz
AND THE DUTY CYCLE AT 35%
R1
11k
1%
D2
1N5817
D3
1N5817
D4
1N5817
D1
1N5817
71
LTC1693-3
OUTPUT CURRENT (mA)
0
0
OUTPUT VOLTAGE (V)
2
6
8
10
60 70 80 90
18
1693 TA09b
4
10 20 30 40 50 100
12
14
16
V
CC
= 5V
OUTPUT CURRENT (mA)
0
0
EFFICIENCY (%)
10
30
40
50
60 70 80 90
90
1693 TA09c
20
10 20 30 40 50 100
60
70
80
V
CC
= 5V