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