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LTC3874 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3874
Description  PolyPhase Step-Down Synchronous Slave Controller with Sub-Milliohm DCR Sensing
Download  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3874 Datasheet(HTML) 6 Page - Linear Technology

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LTC3874
6
3874f
For more information www.linear.com/LTC3874
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current
vs Input Voltage without EXTVCC
VIN (V)
5
5.5
5.3
5.1
4.3
4.1
3.5
3.7
3.9
4.5
4.7
4.9
25
35
3874 G14
10
15
20
40
30
Undervoltage Lockout Threshold
(INTVCC) vs Temperature
TEMPERATURE (°C)
–50
4.1
3.9
2.9
3.7
2.7
3.1
3.5
2.5
3.3
95
3874 G12
–5
45
125
FALLING
RISING
INTVCC Line Regulation
Current Sense Threshold
vs ITH Voltage
Maximum Current Sense
Threshold vs Common Mode
Voltage (LOWDCR = INTVCC,
VITH = 2.18V)
VITH (V)
0
–40
–20
0
20
40
60
100
80
0.5
1
2.5
1.5
3
2
3874 G09
LOWDCR = L, RANGE = H
LOWDCR = H,
RANGE = L
LOWDCR = H,
RANGE = H
LOWDCR = L,
RANGE = L
VISENSE COMMON MODE VOLTAGE (V)
0
10
15
3.5
5
0
1.0
0.5
2.0
2.5
3.0
1.5
20
25
30
3874 G10
ILIM = GND
ILIM = INTVCC
6
4
5
2
3
1
0
VIN (V)
0
10
5
15
30
35
3874 G08
40
20
25
Quiescent Current
vs Temperature without EXTVCC
6
4
2
5
3
1
0
TEMPERATURE (°C)
–50
45
3874 G07
125
–5
95
(TA = 25°C unless otherwise specified)


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