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LTC3891 Datasheet(PDF) 8 Page - Linear Technology

Part # LTC3891
Description  60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
PDF  40 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3891 Datasheet(HTML) 8 Page - Linear Technology

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LTC3890-2
8
38902f
TYPICAL PERFORMANCE CHARACTERISTICS
TRACK/SS Pull-Up Current
vs Temperature
Shutdown (RUN) Threshold
vs Temperature
Regulated Feedback Voltage
vs Temperature
SENSE– Pin Total Input Bias Current
vs Temperature
Shutdown Current
vs Input Voltage
Oscillator Frequency
vs Temperature
Undervoltage Lockout Threshold
vs Temperature
Oscillator Frequency
vs Input Voltage
Shutdown Current vs Temperature
INPUT VOLTAGE (V)
0
10
15
30
25
20
30 35 40 45 50 55 60 65
15
10
525
38902 G23
5
20
INPUT VOLTAGE (V)
344
348
350
356
20
30 35 40 45 50 55 60 65
15
10
525
38902 G26
346
352
354
FREQ = GND
TEMPERATURE (°C)
–75
50
25
0
38902 G22
400
300
–25
–50
75
800
700
600
500
200
100
0
–100
125
100
150
VOUT > INTVCC + 0.5V
VOUT < INTVCC – 0.5V
TEMPERATURE (°C)
–75
806
025
50
38902 G21
800
796
–50 –25
75
794
792
808
804
802
798
100 125 150
TEMPERATURE (°C)
–75
500
550
600
0
25
50
100
38902 G24
450
400
–50 –25
75
125 150
350
300
FREQ = GND
FREQ = INTVCC
TEMPERATURE (°C)
–75
3.7
3.8
3.9
4.1
–25
75 100
38902 G25
3.6
4.2
4.0
–50
025
50
125 150
FALLING
RISING
TEMPERATURE (°C)
8
12
14
22
20
25
50
75 100 125 150
–25
–75 –50
0
38902 G27
10
16
18
VIN = 12V
TEMPERATURE (°C)
–75
0.90
0.95
1.00
1.05
1.10
–50 –25
0
75
50
25
38902 G19
100 125 150
TEMPERATURE (°C)
–75
1.30
1.35
1.40
050
75
38902 G20
1.25
1.20
–50 –25
25
100 125 150
1.15
1.00
1.05
1.10
RUN1 FALLING
RUN2 RISING
RUN1 RISING
RUN2 FALLING



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