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LTC3122IMSE#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
LTC3122
19
3122fa
For more information www.linear.com/LTC3122
Typical applicaTions
Single Li-Cell to 6V, 5W, 3MHz Synchronous Boost Converter for RF Transmitter
2 AA Cell to 12V Synchronous Boost Converter, 180mA
3122 TA02a
V
IN
SD
PWM/SYNC
RT
V
CC
V
OUT
CAP
FB
V
C
LTC3122
SGND PGND
R
C
137k
C
C
150pF
SW
L1
1µH
R2
121k
R1
487k
C
F
12pF
C
VCC
4.7µF
C1
100nF
C
OUT
47µF
V
OUT
6V
833mA
R
T
17.4k
V
IN
2.5V TO 4.2V
C
IN
4.7µF
ONOFF
C
IN
, C
VCC
: 4.7µF, 6.3V, X7R, 1206
C1: 100nF, 6.3V, X7R, 1206
C
OUT
: 47µF, 10V, X7R, 1812
L1: TDK SPM6530T-1ROM120
3122 TA03a
V
IN
SD
PWM/SYNC
RT
V
CC
V
OUT
CAP
FB
V
C
LTC3122
SGND PGND
R
C
200k
C
C
560pF
SW
L1
3.3µH
R2
113k
R1
1.02M
C
F
10pF
C
VCC
4.7µF
C1
100nF
C
OUT
22µF
V
OUT
12V
180mA
R
T
57.6k
V
IN
1.8V TO 3V
C
IN
4.7µF
ONOFF
C
IN
, C
VCC
: 4.7µF, 6.3V, X7R, 1206
C1: 100nF, 6.3V, X7R, 1206
C
OUT
: 22µF, 16V, X7R, 1812
L1: TDK SPM6530T-3R3M
100µs/DIV
80mA 80mA
833mA
3122 TA02b
OUTPUT
CURRENT
500mA/DIV
V
OUT
500mV/DIV
AC-COUPLED
V
IN
= 3.6V
V
IN
(V)
1.6
INPUT CURRENT (A)
2.3
2.1
1.7
1.3
1.1
1.9
1.5
0.9
0.7
0.5
EFFICIENCY (%)
100
90
70
50
40
80
60
30
20
10
0
2.2 2.4 2.6 2.81.8
3122 TA03b
2 3.23
EFFICIENCY
INPUT CURRENT
LTC3122
20
3122fa
For more information www.linear.com/LTC3122
Typical applicaTions
3.3V to 12V, 300kHz Synchronous Boost Converter with Output Disconnect, 500mA
USB/Battery Powered Synchronous Boost Converter, 4.3V to 5V, 1A
3122 TA04a
V
IN
SD
PWM/SYNC
RT
V
CC
V
OUT
CAP
FB
V
C
LTC3122
SGND PGND
R
C
154k
C
C
1.2nF
SW
L1
10µH
R2
113k
R1
1.02M
C
F
56pF
C
VCC
4.7µF
C1
100nF
C
OUT
68µF
V
OUT
12V
500mA
R
T
196k
V
IN
3.3V
C
IN
4.7µF
ONOFF
PWMBURST
C
IN
, C
VCC
: 4.7µF, 6.3V, X7R, 1206
C1: 100nF, 6.3V, X7R, 1206
C
OUT
: 68µF, 16V, X7R, 1812
L1: COILCRAFT MSS1048-103MLB
3122 TA05a
V
IN
SD
PWM/SYNC
RT
V
CC
V
OUT
CAP
FB
V
C
LTC3122
SGND PGND
R
C
43.2k
C
C
1nF
SW
L1
3.3µH
R2
121k
R1
383k
C
F
68pF
C
VCC
4.7µF
C1
100nF
C
OUT
100µF
V
OUT
5V
1A
R
T
57.6k
V
IN
4.3V TO 5.5V
C
IN
4.7µF
C2
4.7µF
ONOFF
C
IN
, C
VCC
: 4.7µF, 6.3V, X7R, 1206
C1: 100nF, 6.3V, X7R, 1206
C
OUT
: 100µF, 6.3V, X7R, 1812
C2: LELON VE-4R7M1ATR-0305
L1: TDK SPM6530T-3R3M
LOAD CURRENT (mA)
0.01
EFFICIENCH (%)
100
80
90
60
40
30
70
50
20
10
0
POWER LOSS (W)
10
1
0.1
0.01
10 1000.1
3122 TA04b
1
PWM
Burst Mode OPERATION
PWM POWER LOSS
2ms/DIV
3122 TA05b
INPUT
CURRENT
0.5A/DIV
V
OUT
2V/DIV
V
IN
2V/DIV
R
LOAD
= 20Ω
V
IN
= USB 2.0
PORT HOTPLUGGED
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
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

LTC3122IMSE#PBF

Mfr. #:
Buy LTC3122IMSE#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect
Lifecycle:
New from this manufacturer.
Delivery:
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