Datasheet

LT3692
2
3692fa
For more information www.linear.com/3692
absoluTe MaxiMuM raTings
V
IN1/2
, SHDN1/2, CMPO1/2 ............................ 40V/–0.3V
V
IN1/2
Transient (Note 2) ................................ 60V/–0.3V
SW1/2 ....................................................................V
IN1/2
BST1/2 ........................................................... 60V/0.3V
BST1/2 Pin Above SW1/2 ..........................................25V
IND1/2, V
OUT1/2
.........................................40V/0.3V, 7A
FB1/2, CMPI1/2, SS1/2 ................................................5V
RT/SYNC .....................................................................5V
DIV, ILIM1/2 .............................................................2.5V
V
C1/2
, T
J
.............................................................. ±100µA
Operating Junction Temperature Range (Note 3)
LT3692EUH ........................................ 40°C to 125°C
LT3692IUH ......................................... 40°C to 125°C
Storage Temperature Range .................. 65°C to 150°C
(Note 1)
pin conFiguraTion
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
VIN1/2
= 15V unless otherwise specified. (Note 3)
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3692EUH#PBF LT3692EUH#TRPBF 3692
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°C
LT3692IUH#PBF LT3692IUH#TRPBF 3692
32-Lead (5mm × 5mm) Plastic QFN
–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/
32 31 30 29 28 27 26 25
9 10 11 12
TOP VIEW
33
GND
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1BST1
CMPO1
CMPI1
FB1
FB2
CMPI2
CMPO2
BST2
ILIM1
V
C1
RT/SYNC
CLKOUT
T
J
DIV
V
C2
ILIM2
V
OUT1
DNC*
IND1
DNC*
SW1
V
IN1
SHDN1
SS1
V
OUT2
DNC*
IND2
DNC*
SW2
V
IN2
SHDN2
SS2
θ
JA
= 35°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
*DO NOT CONNECT
PARAMETER CONDITIONS MIN TYP MAX UNITS
SHDN Voltage Threshold Ch 1/2 (Note 4)
l
1.24 1.32 1.4 V
SHDN Input Current Ch 1/2 V
SHDN
= 1.3V 1.5 5 µA
V
IN1
Undervoltage Lockout (Note 5) V
FB1/2
= 0V, V
VOUT1/2
= 0V, V
IND1/2
= 0V 2.5 2.8 3.1 V
V
IN
Overvoltage Lockout Ch 1/2 (Note 6) 36 38 41 V
V
IN1
Shutdown Current V
SHDN
= 0V
l
6 10 µA
V
IN2
Shutdown Current V
SHDN
= 0V
l
0 2 µA
V
IN1
Quiescent Current V
FB1/2
= 0.9V 3 4 5 mA
V
IN2
Quiescent Current V
FB1/2
= 0.9V 400 630 1000 µA
Feedback Voltage Ch 1/2 V
VC1/2
= 1V
l
790 806 822 mV