Datasheet
LTC3876
2
3876f
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage (V
IN
) ......................... –0.3V to 40V
BOOST1, BOOST2 Voltages ....................... –0.3V to 46V
SW1, SW2 Voltages ...................................... –5V to 40V
INTV
CC
, DRV
CC1
, DRV
CC2
, EXTV
CC
, PGOOD, RUN,
(BOOST1-SW1), (BOOST2-SW2), MODE/PLLIN
Voltages ....................................................... –0.3V to 6V
V
OUTSENSE1
+
, V
OUTSENSE1
–
, SENSE1
+
, SENSE1
–
,
SENSE2
+
, SENSE2
–
Voltages ....................... –0.6V to 6V
(Note 1)
13 14 15 16
TOP VIEW
PGND
39
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
1ITH2
VDDQSNS
VTTR
VTTRVCC
MODE/PLLIN
CLKOUT
SGND
RT
V
RNG1
ITH1
TRACK/SS1
V
OUTSENSE1
+
TG2
SW2
BG2
DRV
CC2
EXTV
CC
INTV
CC
PGND
V
IN
DRV
CC1
BG1
SW1
TG1
PHASMD
SENSE2
+
SENSE2
–
CVCC
V
RNG2
VTTSNS
BOOST2
V
OUTSENSE1
–
SENSE1
+
SENSE1
–
DTR1
RUN
PGOOD
BOOST1
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 PGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
TOP VIEW
FE PACKAGE
38-LEAD PLASTIC TSSOP
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
CVCC
SENSE2
–
SENSE2
+
PHASMD
ITH2
VDDQSNS
VTTR
VTTRVCC
MODE/PLLIN
CLKOUT
SGND
RT
V
RNG1
ITH1
TRACK/SS1
V
OUTSENSE1
+
V
OUTSENSE1
–
SENSE1
+
SENSE1
–
V
RNG2
VTTSNS
BOOST
TG2
SW2
BG2
DRV
CC
EXTV
CC
INTV
CC
PGND
V
IN
DRV
CC1
BG1
SW1
TG1
BOOST1
PGOOD
RUN
DTR1
PGND
39
T
JMAX
= 125°C, θ
JA
= 28°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
LTC3876EUHF#PBF LTC3876EUHF#TRPBF 3876
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3876IUHF#PBF LTC3876IUHF#TRPBF 3876
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3876EFE#PBF LTC3876EFE#TRPBF LTC3876FE 38-Lead Plastic TSSOP –40°C to 125°C
LTC3876IFE#PBF LTC3876IFE#TRPBF LTC3876FE 38-Lead Plastic TSSOP –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 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/
TRACK/SS1 Voltage ..................................... –0.3V to 5V
DTR1, CVCC, PHASMD, RT, V
RNG1
, V
RNG2
, VTTSNS,
VDDQSNS, VTTR, ITH1, ITH2
Voltages ................................ ..–0.3V to (INTV
CC
+ 0.3V)
Operating Junction Temperature Range
(Notes 2, 3, 4) ....................................... –40°C to 125°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec)
FE Package ......................................................300°C