Datasheet

12
LT1317/LT1317B
TYPICAL APPLICATIO S
U
SHUTDOWN
L1
22µH
MBR0520
SHDN
56k
124k
1%
1.07M
1%
3300pF
1317 TA04
L1: SUMIDA CD54-220
V
IN

5V
V
OUT

12V
150mA
47µF
+
C2
47µF
+
V
IN
SW
FB
LB0
V
C
GND
SHDN
LT1317
SHUTDOWN
V
IN
SW
FB
LT1317
L1
10µH
MBR0520
33k
324k
1%
1M
1%
3300pF
1317 TA05
L1: SUMIDA CD43-100
V
C
GND
V
OUT

5V
250mA
SINGLE
Li-ION
CELL
(2.7V TO
4.2V)
47µF
+
47µF
+
SHDN
V
IN
SW
FB
LT1317BCMS8
L1
10µH
D1
SHDN
33k
332k
1M
3.3nF
1317 TA06
C1: AVX TAJA156M010
C2: MURATA GRM235Y5V106Z01
L1: MURATA LQH3C100 OR SUMIDA CLQ61-100N
D1: MOTOROLA MBR0520LT1
V
C
GND
3.3V 5V
125mA
C1
15µF
10V
+
C2
10µF
CERAMIC
Low Profile 3.3 to 5V Converter
5V to 12V Boost Converter 5V to 12V Boost Converter Efficiency
Single Li-Ion to 5V DC/DC Converter Efficiency
Single Li-Ion to 5V DC/DC Converter
LOAD CURRENT (mA)
1
EFFICIENCY (%)
90
85
80
75
70
10 100
1317 TA04a
LOAD CURRENT (mA)
1 10 100 1000
EFFICIENCY (%)
90
85
80
75
70
65
60
1317 TA05a
V
IN
= 4.2V
V
IN
= 3.5V
V
IN
= 2.7V