Datasheet

16
LTC1474/LTC1475
TYPICAL APPLICATIONS
U
Figure 14. Positive-to-Negative (–5V) Converter
1474/75 F14
V
IN
GND
SENSE
LBI
RUN
V
OUT
LBO
SW
LTC1474-5
6
3
8
1
2
5
7
4
10µF**
25V
0.1µF
V
IN
3.5V TO 12V
L*
100µH
D1
MBR0530
+
+
33µF
†
10V
V
OUT
–5V
140mA AT V
IN
= 5V
* SUMIDA CDRH74-101
** AVX TPSC106M025
†
AVX TPSC336M010
††
RUN: ON/OFF = 0, SHUTDOWN: 0N/OFF = V
IN
V
IN
(V) I
LOAD(MAX)
3.5 100mA
5 140mA
8 190mA
12 240mA
10M
ON/OFF
††
TP0610
1474/75 F15
V
IN
GND
SENSE
LBI
RUN
V
FB
LBO
SW
LTC1474
6
3
8
1
2
5
7
4
100k
4.69M
CHARGER
ON/OFF
4.7µF**
35V
0.1µF
V
IN
8V TO 18V
1M
10pF
L*
100µH
D1
MBR0530
MBR0530
+
+
47µF
†
16V
V
OUT
4-NiCd
200mA
* SUMIDA CDRH73-101
** AVX TPSC475M035
†
AVX TPSD476M016
Figure 15. 4-NiCd Battery Charger