LTC3785 LINER [Linear Technology], LTC3785 Datasheet - Page 2

• Manufacturer Part Number: LTC3785
• Description: High Efficiency, Synchronous, 4-Switch Buck-Boost Controller
• Manufacturer: LINER [Linear Technology]

absoluTe MaxiMuM raTings
LTC3789
Input Supply Voltage (V
Topside Driver Voltages
(BOOST1, BOOST2) .................................. 46V to –0.3V
Switch Voltage (SW1, SW2) ......................... 40V to –5V
Current Sense Voltages (I
BOOST1, BOOST2 – SW1, SW2 ................... 6V to –0.3V
TG1, TG2 – SW1, SW2 ................................. 6V to –0.3V
EXTV
INTV
SENSE
MODE/PLLIN, SS Voltages ................... INTV
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH
LTC3789EGN#PBF
LTC3789IGN#PBF
LTC3789EUFD#PBF
LTC3789IUFD#PBF
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:
For more information on tape and reel specifications, go to:
2
CC
CC
+
Voltage ............................................. 6V to –0.3V
, SENSE
Voltage .......................................... 14V to –0.3V
MODE/PLLIN
–
I
I
V
SENSE
OSENSE
OSENSE
SENSE
OUTSNS
V
Voltages .................... INTV
SGND
INSNS
FREQ
RUN
I
V
LIM
28-LEAD NARROW PLASTIC SSOP
I
SS
TH
T
FB
JMAX
+
–
+
–
TAPE AND REEL
LTC3789EGN#TRPBF
LTC3789IGN#TRPBF
LTC3789EUFD#TRPBF
LTC3789IUFD#TRPBF
10
11
12
13
14
IN
1
2
3
4
5
6
7
8
9
= 125°C, θ
OSENSE
) ......................... 40V to –0.3V
GN PACKAGE
TOP VIEW
JA
+
, I
= 80°C/W
OSENSE
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PGOOD
SW1
TG1
BOOST1
PGND
BG1
V
INTV
EXTV
BG2
BOOST2
TG2
SW2
TRIM
IN
–
http://www.linear.com/leadfree/
) ...40V to –0.3V
CC
CC
PART MARKING*
LTC3789
LTC3789
3789
3789
CC
CC
http://www.linear.com/tapeandreel/
to –0.3V
to –0.3V
(Note 1)
V
BG1, BG2 Voltages ............................... INTV
I
V
RUN, PGOOD Voltage ................................. 6V to –0.3V
Operating Junction Temperature Range
(Notes 2, 3) ............................................ –40°C to 125°C
Storage Temperature Range ................... –65°C to 125°C
INTV
Lead Temperature (Soldering, 10 sec.)
TH
INSNS
FB
, FREQ, I
GN Package ...................................................... 300°C
PACKAGE DESCRIPTION
28-Lead Narrow Plastic SSOP
28-Lead Narrow Plastic SSOP
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
Voltage ................................................ 2.7V to –0.3V
CC
, V
Peak Output Current ................................100mA
EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB
OUTSNS
MODE/PLLIN
LIM
V
SENSE
OUTSNS
V
SGND
FREQ
INSNS
RUN
Voltages ........................ INTV
I
28-LEAD (4mm × 5mm) PLASTIC QFN
......................................... 40V to –0.3V
TH
–
T
JMAX
1
2
3
4
5
6
7
8
28 27 26 25 24
9 10
= 125°C, θ
UFD PACKAGE
TOP VIEW
11 12 13
SGND
29
JA
= 34°C/W
14
23
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
22
21
20
19
18
17
16
15
BOOST1
PGND
BG1
V
INTV
EXTV
BG2
BOOST2
IN
CC
CC
CC
CC
to –0.3V
to –0.3V
3789f