Datasheet

LTC4270/LTC4271
3
42701fc
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 LT C Marketing for parts specified with wider operating temperature ranges.
Consult LT C 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
1615 17 18 19
TOP VIEW
53
VSSK
UKG PACKAGE
52-LEAD (7mm × 8mm) PLASTIC QFN
20 21 22 23 24 25 26
5152 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
1SENSE1
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
V
EE
V
EE
CPA CNA DPA DNA NC NC NC NC NC V
EE
SENSE5
GATE5
OUT5
SENSE6
GATE6
OUT6
SENSE7
GATE7
OUT7
SENSE8
GATE8
OUT8
32
31
30
29
28
27
9
10
11
12
13
14
T
JMAX
= 125°C, θ
JA
= 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
MSD GP0 GP1 AUTO V
DD33
CAP1
NC
CPD
CND DPD
DND
V
DD33
25
DGND
T
JMAX
= 125°C, θ
JA
= 37°C/W
EXPOSED PAD (PIN 25) IS DGND, MUST BE SOLDERED TO PCB