LT1371CSW Linear Technology, LT1371CSW Datasheet - Page 13

• Manufacturer Part Number: LT1371CSW
• Description: IC SWTCHNG REG 3A HI-EFF 20-SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, Cuk, Flyback, Forward Converterr

Specifications of LT1371CSW

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 35 V
• Current - Output: 3A
• Frequency - Switching: 500kHz
• Voltage - Input: 2.7 ~ 25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

TYPICAL APPLICATIONS
0.0047 F
+
OFF
OFF
C3
C1
33 F
20V
Positive-to-Negative Converter with Direct Feedback
ON
+
ON
C1
100 F
S/S
V
S/S
2 Li-Ion Cells to 5V SEPIC Converter**
GND
C
2.7V TO 13V
R1
2k
**
LT1371
*
C2
0.047 F
4V TO 9V
V
V
LT1371
C1 = AVX TPSD 336M020R0200
C2 = TOKIN 1E475ZY5U-C304
C3 = AVX TPSD107M010R0100
SINGLE INDUCTOR WITH TWO WINDINGS
COILTRONICS CTX10-4
INPUT VOLTAGE MAY BE GREATER OR
LESS THAN OUTPUT VOLTAGE
IN
IN
V
V
IN
IN
GND
V
NFB
SW
V
V
SW
C
FB
R1
2k
C4
0.047 F
*COILTRONICS CTX10-4
†
MAX I
I
0.6A
1.0A
1.5A
OUT
D2
P6KE-15A
D3
1N4148
•
OUT
L1A*
10 H
V
3V
5V
9V
IN
MBRS330T3
C5
0.0047 F
4.7 F
U
C2
2
1
•
T1*
D1
•
4
3
N
•
MBRS330T3
L1B*
10 H
†
+
MAX I
0.85A
1.3A
1.5A
I
OUT
1A
R2
2.49k
1%
R3
2.49k
1%
C4
100 F
OUT
LT1371 • TA05
V
4V
5V
7V
9V
2
R2
18.7k
1%
R3
6.19k
1%
IN
LT1371 • TA03
+
–V
–5V
OUT
C3
100 F
10V
V
5V
†
2
OUT
†
0.0047 F
OFF
+
Dual Output Flyback Converter with Overvoltage Protection
+
C3
SINGLE
Li-Ion
CELL
ON
6.19k
C1
22 F
1%
R2
S/S
+
**
*
V
FB
COILCRAFT DO3316P-103
AVX TPSD107M010R0100
C
OFF
R3
2k
LT1371
C1**
100 F
10V
C2
0.047 F
2.7V TO 10V
ON
*DALE LPE-5047-100MB
GND
Single Li-Ion Cell to 5V
V
V
V
NFB
IN
IN
SW
S/S
GND
0.047 F
LT1371
V
1N4148
IN
P6KE-20A
C2
68.1k
R3
1%
2k
R1
V
V
L1*
SW
C
†
FB
MAX I
2, 3
8, 9
I
1.2A
1.6A
1.8A
OUT
•
OUT
T1*
MBRS320T3
MBRS360T3
C3
0.0047 F
2.7V
3.3V
3.6V
•
•
V
MBRS360T3
10
7
4
1
IN
D1
LT1371 • TA06
LT1371
+
+
R2
6.19k
1%
R1
18.7k
1%
+
R4
12.1k
1%
R5
2.49k
1%
C4
47 F
C5
47 F
13
LT1371 • TA04
C4**
100 F
10V
V
15V
–V
–15V
2
OUT
V
5V
OUT
OUT
†