LT3518IUF#PBF Linear Technology, LT3518IUF#PBF Datasheet - Page 2

• Manufacturer Part Number: LT3518IUF#PBF
• Description: IC LED DRIVER AUTOMOTIVE 16-QFN
• Manufacturer: Linear Technology
• Type: Automotiver

Specifications of LT3518IUF#PBF

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 250kHz ~ 2.5MHz
• Voltage - Supply: 3 V ~ 30 V
• Voltage - Output: 7V
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 2.8A
• Internal Switch(s): Yes
• Efficiency: 88%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
LT3518
V
SW, ISP , ISN, TG ........................................................45V
TG Pin Below ISP Pin ................................................10V
FB, SYNC, SS, CTRL ...................................................6V
V
Operating Junction Temperature Range (Notes 2, 4)
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
LT3518EUF#PBF
LT3518IUF#PBF
LT3518EFE#PBF
LT3518IFE#PBF
LT3518HFE#PBF
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/
2
IN
C
, R
LT3518E ............................................. –40°C to 125°C
LT3518I .............................................. –40°C to 125°C
LT3518H ............................................ –40°C to 150°C
, SHDN, PWM, TGEN (Note 3)..............................40V
T
, V
REF
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
.................................................................3V
SHDN
16-LEAD (4mm × 4mm) PLASTIC QFN
SW
SW
V
IN
T
JMAX
1
2
3
4
TAPE AND REEL
LT3518EUF#TRPBF
LT3518IUF#TRPBF
LT3518EFE#TRPBF
LT3518IFE#TRPBF
LT3518HFE#TRPBF
16 15 14 13
= 125°C, θ
5
UF PACKAGE
TOP VIEW
6
17
7
JA
= 36°C/W
8
12
11
10
9
FB
V
CTRL
PWM
C
3518
3518FE
3518FE
3518FE
PART MARKING*
3518
(Note 1)
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
QFN .................................................... –65°C to 125°C
TSSOP ............................................... –65°C to 150°C
TSSOP .............................................................. 300°C
PACKAGE DESCRIPTION
16-Lead (4mm × 4mm) Plastic QFN
16-Lead (4mm × 4mm) Plastic QFN
16-Lead Plastic TSSOP
16-Lead Plastic TSSOP
16-Lead Plastic TSSOP
T
JMAX
SHDN
SYNC
PWM
CTRL
V
V
REF
= 150°C, θ
SS
R
IN
T
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
JA
FE PACKAGE
TOP VIEW
= 40°C/W, θ
GND
17
JC(PAD)
16
15
14
13
12
11
10
9
= 10°C/W
SW
SW
TG
ISP
ISN
TGEN
FB
V
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
TEMPERATURE RANGE
–40°C to 125°C
C
3518fd