Datasheet
LTC3787
2
3787fc
ABSOLUTE MAXIMUM RATINGS
VBIAS ........................................................ –0.3V to 40V
BOOST1 and BOOST2 ................................ –0.3V to 76V
SW1 and SW2 ............................................ –0.3V to 70V
RUN ............................................................. –0.3V to 8V
Maximum Current Sourced into Pin
From Source >8V ..............................................100µA
PGOOD, PLLIN/MODE ................................. –0.3V to 6V
INTV
CC
, (BOOST1 - SW1), (BOOST2 - SW2) ...–0.3V to 6V
(Notes 1, 3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ILIM
SENSE1
+
SENSE1
–
FREQ
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN
SS
SENSE2
–
SENSE2
+
VFB
ITH
PGOOD
SW1
TG1
BOOST1
BG1
VBIAS
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
TG2
SW2
NC
T
JMAX
= 125°C, θ
JA
= 90°C/W
9 10
TOP VIEW
29
GND
UFD PACKAGE
28-LEAD (4mm s 5mm) PLASTIC QFN
11 12 13
28 27 26 25 24
14
23
6
5
4
3
2
1
FREQ
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN
SS
SENSE2
–
BOOST1
BG1
VBIAS
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SENSE1
–
SENSE1
+
ILIM
PGOOD
SW1
TG1
SENSE2
+
VFB
ITH
NC
SW2
TG2
7
17
18
19
20
21
22
16
8
15
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE CONNECTED TO GND
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3787EUFD#PBF LTC3787EUFD#TRPBF 3787
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3787IUFD#PBF LTC3787IUFD#TRPBF 3787
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3787HUFD#PBF LTC3787HUFD#TRPBF 3787
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 150°C
LTC3787MPUFD#PBF LTC3787MPUFD#TRPBF 3787
28-Lead (4mm × 5mm) Plastic QFN
–55°C to 150°C
LTC3787EGN#PBF LTC3787EGN#TRPBF LTC3787GN 28-Lead Plastic SSOP –40°C to 125°C
LTC3787IGN#PBF LTC3787IGN#TRPBF LTC3787GN 28-Lead Plastic SSOP –40°C to 125°C
LTC3787HGN#PBF LTC3787HGN#TRPBF LTC3787GN 28-Lead Plastic SSOP –40°C to 150°C
LTC3787MPGN#PBF LTC3787MPGN#TRPBF LTC3787GN 28-Lead Plastic SSOP –55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified 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 specifications, go to:
http://www.linear.com/tapeandreel/
EXTV
CC
........................................................ –0.3V to 6V
SENSE1
+
, SENSE1
–
, SENSE2
+
, SENSE2
–
... –0.3V to 40V
(SENSE1
+
- SENSE1
–
), (SENSE2
+
- SENSE2
–
) ...–0.3V to 0.3V
ILIM, SS, ITH, FREQ, PHASMD, VFB .....–0.3V to INTV
CC
Operating Junction Temperature
Range (Note 2) ........................................–55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C