Datasheet

17
LTC1474/LTC1475
TYPICAL APPLICATIONS
U
Figure 17. Pushbutton On/Off 5V/250mA Regulator
Figure 18. LTC1475 Regulator with 1-Button Toggle On/Off
1474/75 F17
V
IN
GND
SENSE
LBI/OFF
ON
V
OUT
LBO
SW
LTC1475-5
6
3
8
1
2
5
7
4
100k
ON
OFF
4.7µF**
35V
0.1µF
V
IN
5.7V TO 18V
3.65M
L*
100µH
D1
MBR0530
+
+
33µF
†
10V
V
OUT
5V
250mA
1M
* SUMIDA CDRH73-101
** AVX TPSC475M035
†
AVX TPSC336M010
1474/75 F18
V
IN
GND
SENSE
LBI/OFF
ON
V
OUT
LBO
SW
LTC1475-3.3
6
3
8
1
2
5
7
4
100k
ON/OFF
4.7µF**
35V
0.1µF
0.1µF
µC
V
IN
4V TO 18V
V
CC
L*
100µH
D1
MBR0530
+
100µF
†
6.3V
V
OUT
3.3V
250mA
MMBD914LT1
2.2M
1M
+
* SUMIDA CDRH73-101
** AVX TPSC475M035
†
AVX TPSC107M006
Figure 16. High Efficiency 3.3V Regulator with Low Battery Lockout
1474/75 F16
V
IN
GND
SENSE
LBI
RUN
V
OUT
LBO
SW
LTC1474-3.3
6
3
8
1
2
5
7
4
100k
RUN
4.7µF
†
35V
0.1µF
V
IN
4V TO 18V
2.2M
1M
L*
100µH
D1
MBR0530
+
+
100µF
††
6.3V
V
OUT
3.3V
250mA
* SUMIDA CDRH73-101
†
AVX TPSC475M035
††
AVX TPSC107M006