LTC1474 LINER [Linear Technology], LTC1474 Datasheet - Page 16

• Manufacturer Part Number: LTC1474
• Description: Low Quiescent Current High Efficiency Step-Down Converters
• Manufacturer: LINER [Linear Technology]

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