LT3743IUFD#PBF Linear Technology, LT3743IUFD#PBF Datasheet - Page 25
LT3743IUFD#PBF
Manufacturer Part Number
LT3743IUFD#PBF
Description
IC LED DRVR HP CONST CURR 28QFN
Manufacturer
Linear Technology
Type
High Power, Constant Currentr
Datasheet
1.LT3743EUFDPBF.pdf
(28 pages)
Specifications of LT3743IUFD#PBF
Topology
High Side, Low Side, PWM, Step-Down (Buck)
Number Of Outputs
1
Internal Driver
No
Type - Primary
General Purpose
Type - Secondary
RGB
Frequency
200kHz ~ 1MHz
Voltage - Supply
6 V ~ 36 V
Mounting Type
Surface Mount
Package / Case
28-QFN
Operating Temperature
-40°C ~ 125°C
Internal Switch(s)
Yes
Efficiency
92%
Led Driver Application
Lighting
No. Of Outputs
1
Output Current
20A
Output Voltage
40V
Input Voltage
6V To 36V
Dimming Control Type
PWM
Operating Temperature Range
-40°C To +125°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Current - Output / Channel
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
PACKAGE DESCRIPTION
4.50 0.05
3.10 0.05
2.50 REF
5.00 0.10
(2 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE MADE A JEDEC PACKAGE OUTLINE MO-220 VARIATION (WXXX-X).
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
ON THE TOP AND BOTTOM OF PACKAGE
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
2.65 0.05
0.50 BSC
PIN 1
TOP MARK
(NOTE 6)
0.25 0.05
3.65 0.05
4.10 0.05
5.50 0.05
4.00 0.10
(2 SIDES)
3.50 REF
(Reference LTC DWG # 05-08-1712 Rev B)
28-Lead Plastic QFN (4mm × 5mm)
UFD Package
0.70 0.05
0.75 0.05
PACKAGE OUTLINE
0.200 REF
0.00 – 0.05
3.50 REF
R = 0.05
TYP
BOTTOM VIEW—EXPOSED PAD
3.65 0.10
2.65 0.10
R = 0.115
TYP
2.50 REF
27
28
R = 0.20 OR 0.35
0.50 BSC
PIN 1 NOTCH
0.25 0.05
45 CHAMFER
LT3743
(UFD28) QFN 0506 REV B
1
2
0.40 0.10
25
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