LND34063A
8
1
2
1
3
S
Q
Q2
CR
7
100
Q1
Rsc
0.33
V
O
IN
25 V
6
+
100
I
C
Oscillator
T
pk
2
3
+
-
1.25 V
Reference
CT
470pf
L
220
µ
H
5
R2
3.6k
4
V
OUT
O 5.0V/500mA
470
+
Co
1.0
µ
H
O
VOUT
+
100
R1
1.2k
Optional Filter
Fig 5 : VOLTAGE INVERTING CONVERTER
8
1
2
1
8
1
2
3
1
3
S
Q
Q2
S
Q
Q2
O
VOUT
CR
7
100
Q1
CR
7
100
Q1
Rsc
V
O
IN
6
I
pk
Oscillator
C
T
2
3
O
O
VOUT
1.25 V
Reference
4
O
O
5
Rsc
V
O
IN
6
I
pk
Oscillator
C
T
2
3
O
1.25 V
Reference
4
O
+
-
+
-
5
O
6a: External NPN Switch
6b: External NPN Saturated Switch
Fig6 : External Boost Connections
for Ic Peak Greater than 1.5A
•
Linear Dimensions, Inc.
•
445 East Ohio Street, Chicago IL 60611 USA
•
tel 312.321.1810
•
fax 312.321.1830
•
•