Datasheet

17
LTC1530
1530fa
+
10µF
L
O
PV
CC
PV
CC
GND
G1
G2
COMP
LTC1530
I
FB
I
MAX
1
2
3
4
8
7
6
5
V
OUT
V
OUT
1530 F09
V
IN
R
C
R
IFB
R
IMAX
C
C
C
IN
0.1µF
0.1µF
Q1
Q2
C1
BOLD LINES INDICATE
HIGH CURRENT PATHS
C
OUT
+
+
Figure 9. LTC1530 Layout Diagram
DEVICE OUTPUT CAPACITOR (C
O
)R
C
C
C
C1
LTC1530-3.3 7 X330µF 10k 0.022µF 150pF
AVX TPSE337M006R0100
LTC1530-3.3 4 X1500µF 15k 0.022µF 100pF
SANYO 6MV1500GX
LTC1530-2.8 7 X330µF 8.6k 0.022µF 150pF
AVX TPSE337M006R0100
LTC1530-2.8 4 X1500µF 13k 0.022µF 100pF
SANYO 6MV1500GX
LTC1530-2.5 7 X330µF 7.5k 0.022µF 220pF
AVX TPSE337M006R0100
LTC1530-2.5 4 X1500µF 11k 0.022µF 120pF
SANYO 6MV1500GX
LTC1530-1.9 7 X330µF 5.6k 0.033µF 220pF
AVX TPSE337M006R0100
LTC1530-1.9 4 X1500µF 8.2k 0.022µF 220pF
SANYO 6MV1500GX
1530 TA TBL
Figure 10. 5V to 1.9V-3.3V Synchronous Buck Converter
PV
CC
Is Powered from 12V Supply
+
+
0.1µF
10µF
+
C
O
(SEE
TABLE)
C
IN
**
L
O
†
20Ω
2.7k
PV
CC
12V
PV
CC
GND
LTC1530
(SEE TABLE)
G1
15
2
4
8
6
7
3
COMP
I
FB
I
MAX
G2
V
OUT
V
OUT
1.9V TO 3.3V
14A
1530 F10
V
IN
5V
* SILICONIX SUD50N03-10
** 3× SANYO 10MV1200GX OR
3× SANYO OS-CON 6SH330K
R
C
C
C
Q1*
Q2*
C1
†
COILTRONICS CTX02-13198 (2µH) OR
PANASONIC ETQP6F2R5HA PCC-N6 (2.5µH)
(SEE TABLE)
APPLICATIO S I FOR ATIO
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