Datasheet

LTC3577/LTC3577-1
3
3577fa
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
V
SW
............................................................ –0.3V to 45V
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, LED_FS, LED_OV, PWR_ON, WAKE,
PBSTAT, PG_DCDC, FB1, FB2, FB3, LDO1, LDO1_FB,
LDO2, LDO2_FB, DV
CC
, SCL, SDA ............... 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
WAKE
, I
PBSTAT
, I
PG_DCDC
................... 75m A
I
OVSENS
..................................................................10mA
I
CLPROG
, I
PROG
, I
LED_FS
, I
LED_OV
..............................2mA
Junction Temperature ............................................110°C
Operating Temperature Range .................40°C to 85°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
LED_FS 3
WALL 4
SW3 5
V
IN3
6
FB3 7
OVSENS 8
LED_OV 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 LDO1_FB
26 FB1
25 FB2
24 LDO2_FB
23 V
INLDO1
PBSTAT 16
WAKE 17
SW 18
SW 19
SW 20
PG_DCDC 21
I
LED
22
44 CHRG
43 CLPROG
42 V
C
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
LTC3577EUFF#PBF LTC3577EUFF#TRPBF 3577
44-Lead (4mm × 7mm) Plastic QFN
–40°C to 85°C
LTC3577EUFF-1#PBF LTC3577EUFF-1#TRPBF 35771
44-Lead (4mm × 7mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/