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LTC1142HVCG Datasheet(PDF) 18 Page - Linear Technology

Part # LTC1142HVCG
Description  Dual High Efficiency Synchronous Step-Down Switching Regulators
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1142HVCG Datasheet(HTML) 18 Page - Linear Technology

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LTC1142/LTC1142L/LTC1142HV
TYPICAL APPLICATIONS N
Figure 12. LTC1142HV-ADJ High Efficiency Regulator with 3.3V/2A and 2.5V/1.5A Outputs
+
+
+
1000pF
PDRIVE 3
SENSE+3
SENSE –3
NDRIVE 3
PGND3 SGND3 CT3
ITH3
ITH5
CT5
SGND5 PGND5
NDRIVE 5
SENSE –5
SENSE+5
PDRIVE 5
VIN3
SHUTDOWN 3
SHUTDOWN 5
VIN5
LTC1142HV
CT5
150pF
4
3
25
27
13
11
17
18
RC5
1k
CC3
3300pF
CC5
3300pF
CT3
200pF
RC3
510
Ω
0.22
µF
2
24
16
10
9
15
14
20
23
1
28
6
VOUT5
5V/2A
COUT5
220
µF
10V
× 2
RSENSE5
0.05
Ω
L2
20
µH
D2
MBRS130T3
N-CH
Si9410DY
0V = NORMAL
>1.5V = SHUTDOWN
0.22
µF
CIN5
22
µF
25V
× 2
CIN3
22
µF
25V
× 2
P-CH
Si9433DY
N-CH
Si9410DY
D1
MBRS130T3
COUT3
100
µF
10V
× 3
L1
10
µH
RSENSE3
0.033
Ω
VOUT3
3.3V/3A
VIN
5.2V TO 8V
1142 F13
+
P-CH
Si9430DY
1000pF
RSENSE3: KRL SL-C1-1/2-R033J
RSENSE5: KRL SL-C1-1/2-R050J
L1: COILTRONICS CTX10-4
L2: COILTRONICS CTX20-4
Figure 13. LTC1142HV High Efficiency Regulator with 3.3V/3A and 5V/2A Outputs
1000pF
+
+
+
1000pF
PDRIVE 1
SENSE +1
SENSE –1
NDRIVE 1
PGND1 SGND1 CT1
ITH1
ITH2
CT2
SGND2 PGND2
NDRIVE 2
SENSE –2
VFB2
VFB1
SENSE +2
PDRIVE 2
VIN1
SHUTDOWN 1
SHUTDOWN 2
VIN2
LTC1142HV-ADJ
CT2
330pF
5
4
25
27
13
11
18
19
RC2
1k
CC1
3300pF
CC2
3300pF
CT1
330pF
RC1
1k
0.22
µF
3
24
17
100pF
100pF
10
9
15
14
16
20
23
1
28
2
6
VOUT2
3.3V/2A
COUT2
220
µF
10V
× 2
RSENSE2
0.05
Ω
P-CH
Si9430DY
L2
25
µH
D2
MBRS130T3
N-CH
Si9410DY
0V = NORMAL
>1.5V = SHUTDOWN
0.22
µF
CIN2
22
µF
35V
× 2
CIN1
22
µF
35V
× 2
P-CH
Si9430DY
N-CH
Si9410DY
D1
MBRS130T3
COUT1
220
µF
10V
× 2
L1
33
µH
RSENSE1
0.075
Ω
R2
49.9k
1%
R4
84.5k
1%
R3
51k
1%
R1
49.9k
1%
VOUT1
2.5V/1.5A
VIN
4.5V TO 18V
RSENSE1: KRL SL-C1-1/2-1R075J
RSENSE2: KRL SL-C1-1/2-1R050J
1142 F12
+
L1: COILTRONICS CTX33-4
L2: COILTRONICS CTX25-4



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