LTC1149CN-5 Linear Technology, LTC1149CN-5 Datasheet - Page 16

• Manufacturer Part Number: LTC1149CN-5
• Description: IC SW REG STEP-DOWN 5V 16-DIP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1149CN-5

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 50mA
• Frequency - Switching: 250kHz
• Voltage - Input: 0 ~ 48 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC1149
LTC1149-3.3/LTC1149-5
16
TYPICAL APPLICATIO S
+
+
3.3 F
1 F
1N4148
470pF
0.047 F
1N4148
390pF
0.047 F
Figure 10. High Efficiency 8V to 20V Input 3.3V/1A Output Regulator
Figure 11. High Efficiency 8V to 20V Input 3.3V/3A Output Regulator
1k
1k
0.068 F
3300pF
0.068 F
3300pF
U
**KRL SL-1-C1-0R033J
**DALE WSC-1/2-0.1
*COILTRONICS CTX33-4-KM
*COILTRONICS CTX02-11932
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
PGATE
V
V
PDRIVE
V
C
I
SENSE
PGATE
V
V
P-DRIVE
V
C
I
SENSE
TH
IN
CC
CC
T
TH
IN
CC
CC
T
LTC1149-3.3
LTC1149-3.3
–
–
SENSE
SENSE
SHDN2
SHDN1
NGATE
SHDN2
SHDN1
RGND
R-GND
NGATE
PGND
SGND
PGND
SGND
1N4148
CAP
1N4148
CAP
+
+
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
1000pF
1000pF
8V TO 20V
8V TO 20V
SHUTDOWN
0V = NORMAL
>2V = SHUTDOWN
V
V
IN
IN
IRF9Z34
IRFZ34
IRFR9024
IRFR024
68 H
33 H
L*
L*
1N5818
100
100
1N5818
+
+
R
100 F
35V
0.1
SENSE
R
0.033
220 F
35V
SENSE
**
**
1149 F10
1149 F11
+
+
220 F
6.3V
AVX
220 F
6.3V 2
AVX
V
3.3V/1A
OUT
V
3.3V/3A
OUT