Datasheet

9
LT1303/LT1303-5
TYPICAL APPLICATIONS
U
Setting Output Voltage on LT1303
5V Step-Up Converter with Reference Output
V
IN
R2
100µF
1N5817
1303 TA03
L1
R1
+
100µF
V
OUT
+
V
OUT
= 1.24V 1 +
()
R2
R1
V
IN
SW
FB
PGNDGND
LT1303
33k
INPUT
1.8V TO 4.5V

V
REF
OUTPUT
1.24V
100µF
1N5817
1303 TA04
22µH*
100k
+
2.2µF
+
100µF
OUTPUT
5V

+
2N3906
* SUMIDA CD54-220MC
V
IN
SW
GND PGND
SENSE
SHDNLBI
LT1303-5
LBO