LT1245IS8#PBF Linear Technology, LT1245IS8#PBF Datasheet - Page 5
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LT1245IS8#PBF
Manufacturer Part Number
LT1245IS8#PBF
Description
IC PWM CURRENT MODE HI-SPD 8SOIC
Manufacturer
Linear Technology
Datasheet
1.LT1245IN8.pdf
(16 pages)
Specifications of LT1245IS8#PBF
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
48%
Voltage - Supply
8.2 V ~ 25 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 100°C
Package / Case
8-SOIC (3.9mm Width)
Frequency-max
500kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TYPICAL PERFOR
5.05
5.04
5.03
5.02
5.01
5.00
4.99
4.98
4.97
4.96
4.95
100
–20
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
80
60
40
20
0
0
–50
10
0
Error Amplifier Open-Loop Gain
and Phase
Reference Voltage
High Level Output
Saturation Voltage
I
O
–25
= 1mA
100
OUTPUT SOURCE CURRENT (mA)
GAIN
0
TEMPERATURE ( C)
1k
FREQUENCY (Hz)
25
10k
100
50
V
V
R
T
100k
CC
O
A
PHASE
L
T
T
T
= 100k
= 25 C
= 2.0V - 4.0V
J
J
J
75
= 15V
= –55 C
= 25 C
= 125 C
W
LT1241 • TPC13
LT1241 • TPC10
LT1241 • TPC16
1M
100
A
U
10M
200
125
CE
225
180
135
90
45
0
–45
C
HARA TERISTICS
140
120
100
1.0
0.5
80
60
40
20
1.05
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
0
–50
0
Reference Short-Circuit Current
Low Level Output
Saturation Voltage
–50
Current Sense Clamp Voltage
–25
–25
OUTPUT SINK CURRENT (mA)
C
0
TEMPERATURE ( C)
0
TEMPERATURE ( C)
T
25
J
= 25 C
25
100
50
50
T
J
75
= 125 C
T
J
75
= –55 C
LT1241 • TPC09
LT1241 • TPC14
100
LT1241 • TPC12
100
125
200
125
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
1.2
1.0
0.8
0.6
0.4
0.2
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
–50
Feedback Pin Input Voltage
0
Current Sense Input Threshold
0
Low Level Output Saturation
Voltage During Undervoltage
Lockout
–25
ERROR AMP OUTPUT VOLTAGE (V)
1
T
OUTPUT SINK CURRENT (mA)
T
J
J
= 125 C
LT1241 Series
=125 C
0
TEMPERATURE ( C)
2
25
T
3
5
J
= –55 C
T
50
J
= 25 C
T
4
J
T
= 25 C
75
J
= –55 C
LT1241 • TPC11
LT1241 • TPC17
LT1241 • TPC15
100
5
5
125
10
6