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LTC3801B Datasheet(PDF) 3 Page - Linear Technology

Part # LTC3801B
Description  Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3801B Datasheet(HTML) 3 Page - Linear Technology

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LTC3801/LTC3801B
3801f
TYPICAL PERFOR A CE CHARACTERISTICS
Input DC Supply Current (Normal)
vs Input Voltage
VIN (V)
2
205
215
225
57
10
3801 G01
195
185
175
34
6
89
TA = 25°C
VITH/RUN = 1.3V
VIN (V)
2
16
18
20
57
10
3801 G02
14
12
10
34
6
89
TA = 25°C
VIN (V)
2
9
12
15
57
10
3801 G03
6
3
0
34
6
89
TA = 25°C
VITH/RUN = 0V
LTC3801B
LTC3801
Input DC Supply Current (SLEEP)
vs Input Voltage (LTC3801 Only)
Input DC Supply Current
(Shutdown) vs Input Voltage
Undervoltage Lockout Threshold
vs Temperature
Shutdown Threshold
vs Temperature
Regulated Feedback Voltage
vs Temperature
TEMPERATURE (
°C)
–50
–30
1.2
1.6
2.2
–10
30
50
3801 G04
1.4
2.0
1.8
10
70
90
VIN RISING
VIN FALLING
TEMPERATURE (
°C)
–50
400
500
600
700
800
–30
–10
10
30
3801 G05
50
70
90
VIN = 4.2V
TEMPERATURE (
°C)
–50
804
808
812
10
50
3801 G06
800
796
–30
–10
30
80
90
792
788
VIN = 4.2V
Regulated Feedback Voltage
vs Input Voltage
Oscillator Frequency
vs Temperature
Oscillator Frequency
vs Input Voltage
VIN (V)
2
788
792
796
800
804
46
8
10
3801 G07
808
812
35
7
9
TA = 25°C
TEMPERATURE (
°C)
–50
500
510
530
540
550
600
570
–10
30
50
3801 G08
520
580
590
560
–30
10
70
90
VIN = 4.2V
VIN (V)
2
540
545
550
555
560
34
5
6
3801 G09
78
9
10
TA = 25°C


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