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LTC3827EG-1#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
LTC3827-1
28
38271fe
TYPICAL APPLICATION
Effi ciency vs Load Current Start-Up SW Node Waveform
High Effi ciency Dual 5V/9.5V Step-Down Converter
C
IN1
10µF
C
INT2
1µF
D2
D1
C1
1nF
R
B1
365k
38271 TA03
C
SS1
0.01µF
C
ITH1
470pF
R
ITH1
10k
R
A1
69.8k
C
ITH1A
100pF
C2
1nF
R
B2
432k
C
SS2
0.01µF
C
ITH2
330pF
R
ITH2
15k
R
A2
39.2k
C
ITH2A
100pF
C
B2
0.47µF
R2
100k
C
INT1
4.7µF
C
OUT2
150µF
C
B1
0.47µF
MTOP2
MBOT2
MTOP1
MBOT1
L2
7.2µH
R
SNS2
12mΩ
V
OUT1
5V
5A
V
IN
12V
V
OUT2
9.5V
3A
L1
3.3µH
R
SNS1
12mΩ
C
IN2
10µF
C
OUT1
150µF
I
TH1
V
FB1
SENSE1
+
SENSE1
–
PLLLPF
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2
–
SENSE2
+
V
FB2
I
TH2
TRACK/SS2
TRACK/SS1
PGOOD1
TG1
SW1
BOOST1
BG1
V
IN
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SW2
TG2
LTC3827-1
+
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-3R2M
L2: CDEP105-7R2M
C
OUT1
, C
OUT2
: SANYO 10TPD150M
LOAD CURRENT (mA)
EFFICIENCY (%)
0.01 0.1 1 10 100 1000 10000
38271 F16
0.001
40
50
60
70
80
30
20
10
0
90
100
V
OUT
= 5V
V
OUT
= 9.5V
20ms/DIV
38271 F17
V
OUT2
2V/DIV
V
OUT1
2V/DIV
1µs/DIV
38271 F18
SW1
5V/DIV
SW2
5V/DIV
LTC3827-1
29
38271fe
TYPICAL APPLICATION
High Effi ciency Synchronizable Dual 5V/8V Step-Down Converter
C
IN1
10µF
C
INT2
1µF
D2
D1
C1
1nF
R
B1
365k
38271 TA04
C
SS1
0.01µF
C
ITH1
470pF
10nF
R
ITH1
10k
R
A1
69.8k
10k
C
ITH1A
100pF
C2
1nF
R
B2
353k
C
SS2
0.01µF
C
ITH2
560pF
R
ITH2
35k
R
A2
39.2k
C
ITH2A
100pF
C
B2
0.47µF
R2
100k
C
INT1
4.7µF
C
OUT2
150µF
C
B1
0.47µF
MTOP2
MBOT2
MTOP1
MBOT1
L2
7.2µH
R
SNS2
20mΩ
V
OUT1
5V
5A
V
IN
12V
V
OUT2
8V
2A
L1
3.3µH
R
SNS1
12mΩ
C
IN2
10µF
C
OUT1
150µF
I
TH1
V
FB1
SENSE1
+
SENSE1
–
PLLLPF
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2
–
SENSE2
+
V
FB2
I
TH2
TRACK/SS2
TRACK/SS1
PGOOD1
TG1
SW1
BOOST1
BG1
V
IN
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SW2
TG2
LTC3827-1
+
39pF
22pF
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-3R2M
L2: CDEP105-7R2M
C
OUT1
, C
OUT2
: SANYO 10TPD150M
D3
D4
LTC3827-1
30
38271fe
TYPICAL APPLICATION
High Effi ciency Dual 1.2V/1V Step-Down Converter
C
IN1
10µF
C
INT2
1µF
D2
D1
C1
1nF
R
B1
100k
38271 TA05
C
SS1
0.01µF
C
ITH1
2.2nF
R
ITH1
7k
R
A1
402k
C
ITH1A
220pF
C2
1nF
R
B2
200k
C
SS2
0.01µF
C
ITH2
2.2nF
R
ITH2
10k
R
A2
402k
C
ITH2A
100pF
C
B2
0.47µF
R2
100k
C
INT1
4.7µF
C
OUT2
150µF
C
B1
0.47µF
MTOP2
MBOT2
MTOP1
MBOT1
L2
2.2µH
R
SNS2
15mΩ
V
OUT1
1.0V
5A
V
IN
12V
V
OUT2
1.2V
5A
L1
2.2µH
R
SNS1
15mΩ
C
IN2
10µF
C
OUT1
150µF
I
TH1
V
FB1
SENSE1
+
SENSE1
–
PLLLPF
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2
–
SENSE2
+
V
FB2
I
TH2
TRACK/SS2
TRACK/SS1
PGOOD1
TG1
SW1
BOOST1
BG1
V
IN
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SW2
TG2
LTC3827-1
+
47pF
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-2R2M
L2: CDEP105-2R2M
C
OUT1
, C
OUT2
: SANYO 10TPD150M
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32

LTC3827EG-1#PBF

Mfr. #:
Buy LTC3827EG-1#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators L IQ, 2x, 2-PhSync Buck Cntr
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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