LT8705
ABSOLUTE MAXIMUM RATINGS (Note 1)
V
-V , V
-V
,
FBIN, SHDN Voltage................................... –0.3V to 30V
CSP CSN CSPIN CSNIN
V
-V
...................................... –0.3V to 0.3V
CSNIN, CSPIN, CSPOUT, CSNOUT Voltage ..–0.3V to 80V
CSPOUT CSNOUT
SS, CLKOUT, CSP, CSN Voltage ................... –0.3V to 3V
V , EXTV Voltage .................................. –0.3V to 80V
IN
CC
V Voltage (Note 2)................................... –0.3V to 2.2V
SW1, SW2 Voltage......................................81V (Note 7)
BOOST1, BOOST2 Voltage ......................... –0.3V to 87V
BG1, BG2, TG1, TG2...........................................(Note 6)
Operating Junction Temperature Range
C
RT, LDO33, FBOUT Voltage.......................... –0.3V to 5V
IMON_IN, IMON_OUT Voltage..................... –0.3V to 5V
SYNC Voltage............................................ –0.3V to 5.5V
INTV , GATEV Voltage............................ –0.3V to 7V
LT8705E (Notes 1, 3) ......................... –40°C to 125°C
LT8705I (Notes 1, 3).......................... –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
CC
CC
V
-V , V
-V
..................... –0.3V to 7V
BOOST1 SW1 BOOST2 SW2
SWEN, MODE Voltage.................................. –0.3V to 7V
SRVO_FBIN, SRVO_FBOUT Voltage........... –0.3V to 30V
SRVO_IIN, SRVO_IOUT Voltage................. –0.3V to 30V
FE Package .......................................................300°C
PIN CONFIGURATION
TOP VIEW
V
1
2
INTV
38
37
36
IN
CC
TOP VIEW
CSPIN
CSNIN
MODE
IMON_IN
SHDN
3
4
38 37 36 35 34 33 32
CSPOUT
CSNOUT
5
CSN
34
32
30
28
26
24
SHDN
CSN
1
2
3
4
5
6
7
8
9
31 CSPOUT
30 CSNOUT
6
CSP
CSP
EXTV
CC
29
28
7
LDO33
FBIN
LDO33
FBIN
SRVO_FBOUT
8
27 SRVO_IOUT
SRVO_IIN
EXTV
CC
9
FBOUT
IMON_OUT
FBOUT
IMON_OUT
26
39
39
10
11
12
13
14
15
16
17
18
19
GND
GND
25 SRVO_FBIN
24 NC
BOOST1
TG1
V
C
V
C
SS
CLKOUT
SYNC
RT
SS
23 BOOST1
22 TG1
CLKOUT 10
SYNC 11
RT 12
21 SW1
SW1
20
NC
GND
13 14 15 16 17 18 19
SW2
BG1
22
21
20
TG2
GATEV
CC
BOOST2
BG2
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
= 125°C, θ = 34°C/W
FE PACKAGE
T
VARIATION: FE38(31)
38-LEAD PLASTIC TSSOP
JMAX
JA
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
T
= 125°C, θ = 25°C/W
JA
JMAX
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
8705p
2
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Linear [ Linear ]
