LTC3122_15 Datasheet, PDF (21/26 Pages) Linear Technology – 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect

Typical Applications
5V to Dual Output Synchronous Boost Converter, ±15V
L1
V_IN
3.3µH
5V
OFF ON
SW
V_IN
V_OUT
LTC3122
SD
C_IN
4.7µF
PWM/SYNC
CAP
RT
FB
R_T
57.6k
V_CC
SGND
C_VCC
4.7µF
V_C
PGND
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
C2
470nF
C1
100nF
U1
R1
1.3M
R_C
365k
C_C
150pF
R2
113k
C_F
10pF
C_OUT2
47µF
V_OUT1
15V
C_OUT1
22µF
V_OUT2
–15V
Z1
3122 TA06a
LTC3122
–15.1
–15.0
–14.9
–14.8
–14.7
–14.6
–14.5
–14.4
–14.3
–14.2
–14.1
0
V_OUT1
V_OUT2
50
100
150
OUTPUT CURRENT (mA)
15.1
15.0
14.9
14.8
14.7
14.6
14.5
14.4
14.3
14.2
14.1
200
3122 TA06b
For more information www.linear.com/LTC3122
3122fa
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