Linear Technology LTC3350, Manual

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LTC3350
3
3350fc
For more information www.linear.com/LTC3350
pin conFiguraTion
absoluTe MaxiMuM raTings
V
IN
, VOUTSP, VOUTSN ............................... –0.3V to 40V
VCAP .......................................................... –0.3V to 22V
CAP4-CAP3, CAP3-CAP2, CAP2-CAP1,
CAP1-CAPRTN .......................................... –0.3V to 5.5V
DRV
CC
, OUTFB, CAPFB, SMBALERT , CAPGD,
PFO , GPI, SDA, SCL .................................. –0.3V to 5.5V
BST ......................................................... –0.3V to 45.5V
PFI ............................................................. –0.3V to 20V
CAP_SLCT0, CAP_SLCT1 ................................–0.3 to 3V
BST to SW ................................................ –0.3V to 5.5V
VOUTSP to VOUTSN, ICAP to VCAP ......... –0.3V to 0.3V
I
INTVCC
.................................................................100mA
I
CAP(1,2,3,4)
, I
CAPRTN
............................................ 600mA
I
CAPGD
, I
PFO
, I
SMBALERT
.........................................10mA
Operating Junction Temperature Range
(Notes 2, 3) ..............................................–40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
(Note 1)
13 14 15 16
TOP VIEW
39
PGND
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1 SCL
SDA
SMBALERT
CAPGD
VC
CAPFB
OUTFB
SGND
RT
GPI
ITST
CAPRTN
VOUTSP
VOUTSN
INTV
CC
DRV
CC
BGATE
BST
TGATE
SW
VCC2P5
ICAP
VCAP
OUTFET
PFO PFI CAP_SLCT1 CAP_SLCT0 V
IN
INFET VOUTM5
CAP1 CAP2 CAP3 CAP4
CFP
CFN
VCAPP5
23
22
21
20 9
10
11
12
T
JMAX
= 125°C,
θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3350EUHF#PBF LTC3350EUHF#TRPBF 3350 38-Lead (5mm
×
7mm) Plastic QFN –40°C to 125°C
LTC3350IUHF#PBF LTC3350IUHF#TRPBF 3350 38-Lead (5mm
×
7mm) Plastic QFN –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard 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/