LTC1142HVCG#TRPBF Linear Technology, LTC1142HVCG#TRPBF Datasheet - Page 18

• Manufacturer Part Number: LTC1142HVCG#TRPBF
• Description: IC SW REG STEP-DOWN DUAL 28-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1142HVCG#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V, 5V
• Current - Output: 50mA
• Frequency - Switching: 250kHz
• Voltage - Input: 3.5 ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

2.5V/1.5A
LTC1142/LTC1142L/LTC1142HV
18
TYPICAL APPLICATIO S
V
220 F
C
OUT1
OUT1
10V
3.3V/3A
2
V
OUT3
+
R
0.075
49.9k
49.9k
SENSE1
1%
1%
R2
R1
R
0.033
+
SENSE3
C
100 F
10V
R
R
OUT3
3
SENSE3
SENSE5
MBRS130T3
+
MBRS130T3
R
R
100pF
10 H
: IRC L1206-01-R033-J
: IRC L1206-01-R050-J
SENSE1
SENSE2
Figure 12. LTC1142HV-ADJ High Efficiency Regulator with 3.3V/2A and 2.5V/1.5A Outputs
C
22 F
35V
33 H
22 F
L1
C
IN1
L1
25V
2
IN3
D1
2
D1
: IRC L1206-01-R075-J
: IRC L1206-01-R050-J
Figure 13. LTC1142HV High Efficiency Regulator with 3.3V/3A and 5V/2A Outputs
+
1000pF
P-CH
Si9433DY
N-CH
Si9410DY
N-CH
Si9410DY
1000pF
P-CH
Si9430DY
0.22 F
0.22 F
U
L1: COILCRAFT D03316P-103
L2: COILCRAFT D03316P-223
23
28
28
23
1
6
1
2
6
PDRIVE 3
SENSE
SENSE
NDRIVE 3
PGND3 SGND3 C
SENSE
PDRIVE 1
SENSE
L1: COILTRONICS CTX33-4
L2: COILTRONICS CTX25-4
NDRIVE 1
PGND1 SGND1 C
V
V
V
FB1
IN3
IN1
4
24
5
24
+
–
+
–
3
3
1
1
3
4
SHDN3
SHDN1
T3
25
C
200pF
T1
2
25
C
330pF
3
T3
T1
0V = NORMAL
>1.5V = SHDN
0V = NORMAL
>1.5V = SHDN
LTC1142HV-ADJ
5.2V TO 18V
I
TH3
4.5V TO 18V
I
LTC1142HV
TH1
27
C
3300pF
R
510
27
C
3300pF
C3
R
1k
V
C3
C1
V
C1
IN
IN
I
TH5
I
TH2
13
C
3300pF
R
1k
13
C
3300pF
C5
R
1k
C5
C2
C2
SHDN5
SHDN2
C
C
T5
T2
11
16
C
150pF
11
17
C
330pF
T5
T2
SGND5 PGND5
SGND2 PGND2
17
18
PDRIVE 5
NDRIVE 5
SENSE
SENSE
NDRIVE 2
PDRIVE 2
SENSE
SENSE
10
V
V
IN5
IN2
V
18
–
+
19
10
FB2
+
–
5
5
2
2
14
15
20
9
15
14
16
9
20
0.22 F
0.22 F
Si9410DY
Si9430DY
Si9410DY
Si9430DY
1000pF
1000pF
N-CH
P-CH
N-CH
P-CH
+
D2
MBRS130T3
D2
MBRS130T3
C
22 F
25V
25 H
22 H
IN5
2
L2
100pF
L2
+
R
0.05
SENSE5
C
22 F
35V
IN2
2
R
+
0.05
SENSE2
R4
84.5k
1%
R3
51k
1%
C
220 F
10V
+
OUT5
V
5V/2A
1142 F13
2
OUT5
C
220 F
10V
1142 F12
V
3.3V/2A
OUT2
2
OUT2