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LTC4267-3 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC4267-3
Description  12-Port PoE/PoE/LTPoE PSE Controller
Download  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4267-3 Datasheet(HTML) 3 Page - Linear Technology

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background image
LTC4270/LTC4271
3
42701fb
pin conFigurAtion
orDer inForMAtion
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
MAX PWR TEMPERATURE RANGE
LTC4271IUF#PBF
LTC4271IUF#TRPBF
4271
24-Lead (4mm
× 4mm) Plastic QFN
–40°C to 85°C
LTC4270AIUKG#PBF
LTC4270AIUKG#TRPBF
LTC4270AUKG
52-Lead (7mm
× 8mm) Plastic QFN
90W
–40°C to 85°C
LTC4270BIUKG#PBF
LTC4270BIUKG#TRPBF
LTC4270BUKG
52-Lead (7mm
× 8mm) Plastic QFN
25.5W
–40°C to 85°C
LTC4270CIUKG#PBF
LTC4270CIUKG#TRPBF
LTC4270CUKG
52-Lead (7mm
× 8mm) Plastic QFN
13W
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
LTC4270
LTC4271
16
15
17 18 19
TOP VIEW
53
VSSK
UKG PACKAGE
52-LEAD (7mm
× 8mm) PLASTIC QFN
20 21 22 23 24 25 26
51
52
50 49 48 47 46 45 44 43 42 41
33
34
35
36
37
38
39
40
8
7
6
5
4
3
2
1
SENSE1
GATE1
OUT1
SENSE2
GATE2
OUT2
CAP2
SENSE3
GATE3
OUT3
SENSE4
GATE4
OUT4
XIO0
SENSE12
GATE12
OUT12
SENSE11
GATE11
OUT11
AGND
SENSE10
GATE10
OUT10
SENSE9
GATE9
OUT9
XIO1
32
31
30
29
28
27
9
10
11
12
13
14
TJMAX = 125°C, θJA = 40°C/W
EXPOSED PAD (PIN 53) IS VSSK, MUST BE SOLDERED TO PCB
24 23 22 21 20 19
7
8
9
TOP VIEW
UF PACKAGE
24-LEAD (4mm
× 4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
AD0
AD1
AD2
AD3
AD6
MID
SCL
SDAIN
SDAOUT
INT
RESET
DNC
25
DGND
TJMAX = 125°C, θJA = 37°C/W
EXPOSED PAD (PIN 25) IS DGND, MUST BE SOLDERED TO PCB


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