Datasheet

LTC3677-3
3
36773f
pin conFiguraTionabsoluTe MaxiMuM raTings
V
BUS
, V
OUT
, V
IN12
, V
IN3
, V
INLDO1
, V
INLDO2
, WALL
t < 1ms and Duty Cycle < 1% ................... –0.3V to 7V
Steady State ............................................ –0.3V to 6V
CHRG, BAT, PWR_ON, EXTPWR, PBSTAT, PGOOD,
FB1, FB2, FB3, LDO1, LDO1_FB, LDO2,
LDO2_FB, DV
CC
, SCL, SDA, EN3 ................. –0.3V to 6V
NTC, PROG, CLPROG, ON, I
LIM0
, I
LIM1
(Note 4) ........................................... –0.3V to V
CC
+ 0.3V
I
VBUS
, I
VOUT
, I
BAT
, Continuous (Note 16) .....................2A
I
SW3
, Continuous (Note 16) ................................. 850mA
I
SW2
, I
SW1
, Continuous (Note 16) ........................ 600mA
I
LDO1
, I
LDO2
, Continuous (Note 16) ..................... 200mA
I
CHRG
, I
ACPR
, I
EXTPWR
, I
PBSTAT
, I
PGOOD
...................75mA
I
OVSENS
..................................................................10mA
I
CLPROG
, I
PROG
.........................................................2mA
Operating Junction Temperature Range
(Note 2) ...............................................–40°C to 85°C
Maximum Junction Temperature ...........................110°C
Storage Temperature Range .................. –65°C to 125°C
(Notes 1, 2, 3)
TOP VIEW
45
GND
UFF PACKAGE
44-LEAD (7mm s 4mm) PLASTIC QFN
I
LIM0
1
I
LIM1
2
NC 3
WALL 4
SW3 5
V
IN3
6
FB3 7
OVSENS 8
NC 9
DV
CC
10
SDA 11
SCL 12
OVGATE 13
PWR_ON 14
ON 15
37 IDGATE
36 PROG
35 NTC
34 NTCBIAS
33 SW1
32 V
IN12
31 SW2
30 V
INLD02
29 LDO2
28 LDO1
27 V
INLDO1
26 FB1
25 FB2
24 LDO2_FB
23 LDO1_FB
PBSTAT 16
EN3 17
NC 18 NC 19 NC 20
PGOOD 21
NC 22
44 CHRG 43 CLPROG 42 EXTPWR 41 ACPR 40 V
BUS
39 V
OUT
38 BAT
T
JMAX
= 110°C, θ
JA
= 45°C/W
EXPOSED PAD (PIN 45) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3677EUFF-3#PBF LTC3677EUFF-3#TRPBF 36773
44-Lead (4mm × 7mm) Plastic QFN
–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/