12
LT1614
5V to –15V/80mA DC/DC Converter
5V to –15V Converter Efficiency
LOAD CURRENT (mA)
1
50
EFFICIENCY (%)
55
60
65
70
80
10 100
1614 TA06
75
V
IN
SW
LT1614
L1
22µH
V
IN
5V
D1
NFB
SHDN
255k
24.9k
100k
1nF
V
OUT
–15V
80mA
C1: 25V, Y5V
D1: MBR0520
L1, L2: MURATA LQH3C220
1614 TA05
22µF
10µF
25V
V
C
GND
L2
22µH
C1
1µF
+
+
TYPICAL APPLICATIO S
U
