LTC1149-5 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1149-5' PDF : 20 Pages View PDF
U
TYPICAL APPLICATIO S
LTC1149
LTC1149-3.3/LTC1149-5
+
1µF
VIN
5.5V TO 25V
1N4148
1N4148
0.047µF
220pF
0.068µF
3300pF
1k
1
PGATE
CAP 16
2
VIN
SHDN2 15
3
VCC
14
RGND
4
PDRIVE
NGATE 13
5
LTC1149-5
12
VCC
PGND
6
CT
S-GND 11
7
ITH
SHDN1 10
8 SENSE–
SENSE+ 9
*COILTRONICS CTX33-4 Kool Mµ
**KRL SL-1-C1-0R050J
Si9435DY
L*
33µH
+ 220µF
35V
RSENSE**
0.05Ω
Si9410DY
1N5818
VOUT
5V/2A
+ 220µF
10V × 2
AVX
SHUTDOWN
1000pF
1149 F12
Figure 12. Ultra Wide Input Range (5.5V to 25V) High Efficiency 5V Regulator
+
1µF
VIN
8V TO 16V
1N4148
1N4148
0.047µF
180pF
0.068µF
3300pF
1k
1
PGATE
CAP 16
2
VIN
SHDN2 15
3
VCC
RGND 14
4
PDRIVE
NGATE 13
5
VCC
LTC1149-5
PGND
12
6
CT
11
SGND
7
ITH
SHDN1 10
8 SENSE–
SENSE+ 9
*DALE LPE-6562-220MB
**KRL SL-1-C1-0R050J
Si9430DY
L*
22µH
+ 100µF
25V
RSENSE**
0.05Ω
Si9410DY
1N5818
VOUT
5V/2A
+ 220µF
10V
AVX
SHUTDOWN
1000pF
1149 F13
Figure 13. 250kHz High Efficiency 12V Input 5V/2A Output Regulator
17
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