LTC3788-1 Linear Technology, LTC3788-1 Datasheet - Page 2

• Manufacturer Part Number: LTC3788-1
• Description: Dual Output Synchronous Boost Controller
• Manufacturer: Linear Technology

www.DataSheet4U.com
ABSOLUTE MAXIMUM RATINGS
LTC3788-1
(Note 1)
VBIAS......................................................... –0.3V to 40V
BOOST1, BOOST2 ...................................... –0.3V to 76V
SW1, SW2 ................................................. –0.3V to 70V
RUN1, RUN2 ................................................ –0.3V to 8V
PGOOD1, PLLIN/MODE ............................... –0.3V to 6V
INTV
EXTV
SENSE1
SENSE2
SENSE1
SENSE2
SS1, SS2, ITH1, ITH2, FREQ,
VFB1, VFB2 ........................................... –0.3V to INTV
Operating Junction Temperature Range ... –40°C to 125°C
Storage Temperature Range ................... –65°C to 125°C
Lead Temperature (Soldering, 10 seconds) .......... 300°C
ORDER INFORMATION
LEAD FREE FINISH
LTC3788EGN-1#PBF
LTC3788IGN-1#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
junction temperature range, otherwise specifi cations are at T
SYMBOL
Main Control Loop
VBIAS
VFB1,2
IFB1,2
V
2
REFLNREG
Maximum Current Sourced into Pin
from Source > 8V..............................................100μA
CC
CC
, (BOOST1-SW1, BOOST2-SW2) ...... –0.3V to 6V
......................................................... –0.3V to 6V
+
+
+
+
, SENSE1
, SENSE2
– SENSE1
– SENSE2
PARAMETER
Chip Bias Voltage Operating Range
Regulated Feedback Voltage
Feedback Current
Reference Line Voltage Regulation
–
–
,
.................................... –0.3V to 40V
–
–
,
................................. –0.3V to 0.3V
TAPE AND REEL
LTC3788EGN-1#TRPBF
LTC3788IGN-1#TRPBF
http://www.linear.com/leadfree/
PART MARKING*
LTC3788GN-1
LTC3788GN-1
http://www.linear.com/tapeandreel/
CONDITIONS
I
(Note 4)
V
TH
IN
The
= 1.2V (Note 4)
= 6V to 38V
A
CC
= 25°C, VBIAS = 12V, unless otherwise noted (Note 2).
l
denotes the specifi cations which apply over the full operating
PIN CONFIGURATION
PACKAGE DESCRIPTION
28-Lead Plastic SSOP
28-Lead Plastic SSOP
PLLIN/MODE
SENSE1
SENSE1
SENSE2
SENSE2
SGND
RUN1
RUN2
FREQ
VFB1
VFB2
ITH1
ITH2
SS2
+
–
–
+
T
JMAX
28-LEAD PLASTIC SSOP
10
11
12
13
14
1
2
3
4
5
6
7
8
9
l
= 125°C, θ
GN PACKAGE
TOP VIEW
1.188
MIN
4.5
JA
= 90°C/W
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1.200
0.002
TYP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
±5
SS1
PGOOD1
SW1
TG1
BOOST1
BG1
VBIAS
PGND
EXTV
INTV
BG2
BOOST2
TG2
SW2
CC
CC
1.212
MAX
0.02
±50
38
UNITS
37881f
%/V
nA
V
V