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LTC4280
2
4280f
 ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
DD
) .................................0.3V to 24V
Supply Voltage (INTV
CC
) ...........................0.3V to 6.5V
Input Voltages
   GATE-SOURCE (Note 3) ...........................0.3V to 5V
   SENSE
+
, SENSE

 ................V
DD
  0.3V to V
DD
 + 0.3V
   SOURCE ....................................................5V to 24V
   EN, FB, ON, OV , UV ................................0.3V to 12V
   ADR0, ADR1, ADR2, TIMER,
   ADIN, FILTER .........................0.3V to INTV
CC
 + 0.3V
   ALERT SCL, SDA, SDAI, SDAO .............0.3V to 6.5V
Output Voltages
   GATE, GPIO ............................................0.3V to 24V
Operating Temperature Range
   LTC4280C ................................................0癈 to 70癈
   LTC4280I..............................................40癈 to 85癈
Storage Temperature Range
   SSOP .................................................65癈 to 150癈
   QFN ....................................................65癈 to 125癈
Lead Temperature (Soldering, 10 sec)
   SSOP ................................................................300癈
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4280CUFD#PBF
LTC4280CUFD#TRPBF
4280
24-Lead (4mm ?5mm) Plastic QFN
0癈 to 70癈
LTC4280IUFD#PBF
LTC4280IUFD#TRPBF
4280
24-Lead (4mm ?5mm) Plastic QFN
40癈 to 85癈
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4280CUFD
LTC4280CUFD#TR
4280
24-Lead (4mm ?5mm) Plastic QFN
0癈 to 70癈
LTC4280IUFD
LTC4280IUFD#TR
4280
24-Lead (4mm ?5mm) Plastic QFN
40癈 to 85癈
Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/ 
For more information on tape and reel speci cations, go to: http://www.linear.com/tapeandreel/
 PIN CONFIGURATION
(Notes 1, 2)
8
9
TOP VIEW
25
UFD PACKAGE
24-LEAD (4mm 5mm) PLASTIC QFN
10
11
12
24  23  22  21  20
6
5
4
3
2
1
UV
OV
FILTER
GND
ON
EN
SDAO
FB
GPIO
INTV
CC
TIMER
ADIN
ADR2
ADR1
7
14
15
16
17
18
19
13
T
JMAX
 = 125癈, ?/DIV>
JA
 = 34癈/W
EXPOSED PAD (PIN 25) NOT GUARANTEED LOW IMPEDANCE TO GND,
ELECTRICAL CONNECTION OPTIONAL
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