LT1377CS8 Linear Technology, LT1377CS8 Datasheet - Page 4

• Manufacturer Part Number: LT1377CS8
• Description: IC SWTCHNG REG 1.5A HI-EFF 8SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, Cuk, Flyback, Forward Converterr

Specifications of LT1377CS8

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 35 V
• Current - Output: 1.5A
• Frequency - Switching: 1MHz
• Voltage - Input: 2.7 ~ 25 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LT1372/LT1377
TYPICAL PERFOR A CE CHARACTERISTICS
4
1.6
2.4
2.2
2.0
1.8
1.4
1.2
1.0
0.8
0.6
0.4
20
18
16
14
12
10
–2
–3
–4
–5
–1
8
6
4
2
0
5
4
3
2
1
0
–50
–50
–1
Shutdown Delay and Threshold
vs Temperature
S/S Pin Input Current
vs Voltage
V
Clamp Voltage vs Temperature
C
V
SHUTDOWN DELAY
IN
–25
–25
Pin Threshold and High
0
= 5V
1
SHUTDOWN THRESHOLD
0
0
TEMPERATURE ( C)
S/S PIN VOLTAGE (V)
TEMPERATURE ( C)
2
V
C
25
25
HIGH CLAMP
3
V
C
50
THRESHOLD
50
4
5
75
75
6
100 125 150
100 125 150
W
7
LT1372 • G04
LT1372 • G10
LT1372 • G07
8
U
9
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
800
700
600
500
400
300
200
100
110
100
90
80
70
60
50
40
30
20
10
0
–50
3.0
2.0
1.5
0.5
2.5
1.0
0
Switching Frequency
vs Feedback Pin Voltage
Feedback Input Current
vs Temperature
0
V
–50
FB
Minimum Synchronization
Voltage vs Temperature
0.1
–25
f
f
=V
SYNC
SYNC
–25
0.2
REF
FEEDBACK PIN VOLTAGE (V)
= 700kHz (LT1372)
= 1.4MHz (LT1377)
0
0.3
TEMPERATURE ( C)
0
25
TEMPERATURE ( C)
0.4
25
0.5
50
LT1377
LT1372
50
0.6
75
75
0.7
100
0.8
100
LT1372 • G11
125
LT1372 • G08
0.9
LT1372 • G05
125
150
1.0
150
1200
–100
–200
2000
1800
1600
1400
1000
–300
400
300
200
100
800
600
400
200
–20
–50
–10
–30
–40
0
0
0
–50
–50
Negative Feedback Input Current
vs Temperature
Error Amplifier Output Current
vs Feedback Pin Voltage
Error Amplifier Transconductance
vs Temperature
V
–0.3
NFB
–25
–25
=V
FEEDBACK PIN VOLTAGE (V)
NFR
125 C
0
0
–0.2
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
–0.1
50
25 C
50
–55 C
75
75
V
g
REF
m
100 125 150
100 125 150
=
LT1372 • G09
LT1372 • G06
V (FB)
LT1372 • G12
I (V
0.1
C
)