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LTC3868-1 Datasheet(PDF) 7 Page - Linear Technology

Part # LTC3868-1
Description  Low IQ, Dual 2-Phase Synchronous Step-Down Controller
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3868-1 Datasheet(HTML) 7 Page - Linear Technology

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LTC3868-1
7
38681fd
TYPICAL PERFORMANCE CHARACTERISTICS
Soft-Start Pull-Up Current
vs Temperature
Shutdown (RUN) Threshold
vs Temperature
Regulated Feedback Voltage
vs Temperature
SENSEPin Input Current
vs Temperature
Shutdown Current
vs Input Voltage
Oscillator Frequency
vs Temperature
Undervoltage Lockout Threshold
vs Temperature
TEMPERATURE (°C)
–45
1.15
30
38681 G19
1.00
0.90
–20
5
55
0.85
0.80
1.20
1.10
1.05
0.95
80
105
130
TEMPERATURE (°C)
–45
0.90
0.95
1.05
1.10
1.15
1.40
1.25
5
55
80
38681 G20
1.00
1.30
1.35
1.20
–20
30
105
130
TEMPERATURE (°C)
–45
806
30
38681 G21
800
796
–20
5
55
794
792
808
804
802
798
80
105
130
TEMPERATURE (°C)
–45
–600
–550
–200
–150
50
–50
–20
30
55
130
38681 G22
0
–100
–400
–350
–500
–450
–250
–300
5
80
105
VOUT = 3.3V
VOUT = 28V
INPUT VOLTAGE (V)
5
8
10
14
20
38681 G23
6
4
10
15
25
28
2
0
12
Oscillator Frequency
vs Input Voltage
INPUT VOLTAGE (V)
5
352
354
356
20
38681 G28
350
348
10
15
25
28
346
344
TEMPERATURE (°C)
–45
3.4
3.5
3.7
3.8
3.9
4.4
4.1
5
55
80
38681 G25
3.6
4.2
4.3
4.0
–20
30
105
130
TEMPERATURE (°C)
–45
700
30
38681 G24
400
200
–20
5
55
100
0
800
600
500
300
80
105
130
FREQ = INTVCC
FREQ = GND


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