LT3507
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
(Note 1)
V Pins...................................................... –0.3V to 36V
IN
TOP VIEW
BOOST Pins ..............................................................55V
BOOST Above SW.....................................................25V
PGOOD Pins..............................................................36V
BIAS Pin....................................................................16V
TRK/SS, V , FB, R /SYNC Pins ...................................6V
38 37 36 35 34 33 32
BOOST1
1
2
3
4
5
6
7
8
9
31
30
29
28
V
V
IN2
IN2
V
IN1
V
IN1
SW2
SW2
C
T
RUN, OVLO, UVLO Pins........................................... V
V
INSW
IN1
OVLO
UVLO
27 BOOST2
TRK/SS4
DRIVE Pin ...................................................................5V
Operating Junction Temperature Range (Notes 2, 5)
LT3507E, LT3507I ..............................–40°C to 125°C
LT3507H ............................................–40°C to 150°C
Storage Temperature Range...................–65°C to 150°C
26
39
V
C1
25 FB4
TRK/SS1
FB1
24 DRIVE
23
V
C2
PGOOD1 10
PGOOD2 11
PGOOD3 12
22 FB2
21 TRK/SS2
20
FB3
13 14 15 16 17 18 19
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
θ
= 34°C/W
JA
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3507EUHF#PBF
LT3507IUHF#PBF
LT3507HUHF#PBF
LT3507EUHF#TRPBF
LT3507IUHF#TRPBF
LT3507HUHF#TRPBF
3507
3507
3507
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
38-Lead (5mm × 7mm) Plastic QFN
38-Lead (5mm × 7mm) Plastic QFN
38-Lead (5mm × 7mm) Plastic QFN
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/
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN1, VIN2, VIN3 = 12V, VBOOST1, VBOOST2, VBOOST3 = 17V, unless
otherwise noted. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
3.8
2
MAX
4
UNITS
V
l
Minimum Operating Voltage
Input Quiescent Current
Bias Quiescent Current
Shutdown Current
Internal UVLO on V
IN1
Not Switching, V
Not Switching, V
= 3.3V
3.5
7.5
1
mA
mA
μA
BIAS
BIAS
= 3.3V
5
V
= 0V
RUN1,2,3
Reference Voltage Line Regulation
5V < V < 36V
0.01
%/V
IN1
3507fa
2
Linear Systems [ Linear Systems ]
