Datasheet

LTC3122
21
3122fa
For more information www.linear.com/LTC3122
Typical applicaTions
5V to Dual Output Synchronous Boost Converter, ±15V
OUTPUT CURRENT (mA)
0
V
OUT2
(V)
–15.1
–15.0
–14.8
–14.6
–14.5
–14.9
–14.7
–14.4
–14.3
–14.2
–14.1
V
OUT1
(V)
15.1
15.0
14.8
14.6
14.5
14.9
14.7
14.4
14.3
14.2
14.1
15050
3122 TA06b
100 200
V
OUT1
V
OUT2
3122 TA06a
V
IN
SD
PWM/SYNC
RT
V
CC
V
OUT
CAP
FB
V
C
LTC3122
SGND PGND
R
C
365k
C
C
150pF
SW
L1
3.3µH
R2
113k
Z1
R1
1.3M
C
F
10pF
C
VCC
4.7µF
C1
100nF
U1
C2
470nF
C
OUT1
22µF
C
OUT2
47µF
V
OUT1
15V
V
OUT2
–15V
R
T
57.6k
V
IN
5V
C
IN
4.7µF
ONOFF
C
IN
, C
VCC
: 4.7µF, 6.3V, X7R, 1206
C
OUT2
: 47µF, 16V, X7R, 1206
C1: 100nF, 6.3V, X7R, 1206
C
OUT1
: 22µF, 16V, X7R, 1812
C2: 470nF, 25V, X7R, 1206
L1: TDK SPM6530T-3R3M
U1: CENTRAL SEMICONDUCTOR CBAT54S
Z1: DIODES, INC. DDZ16ASF-7