Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
16-WFQFN Exposed Pad |
Number of Pins |
16 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e0 |
Pbfree Code |
no |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
16 |
Termination |
SMD/SMT |
ECCN Code |
EAR99 |
Type |
DC DC Regulator |
Terminal Finish |
Tin/Lead (Sn/Pb) |
Applications |
Backlight |
Subcategory |
Display Drivers |
Terminal Position |
QUAD |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Supply Voltage |
3.6V |
Terminal Pitch |
0.5mm |
Base Part Number |
LM3503 |
Pin Count |
16 |
Number of Outputs |
2 |
Power Supplies |
3/5V |
Max Supply Voltage |
5.5V |
Min Supply Voltage |
2.5V |
Output Current |
20mA |
Quiescent Current |
1.9mA |
Max Output Voltage |
44V |
Voltage - Output |
44V |
Topology |
Step-Up (Boost) |
Min Input Voltage |
2.5V |
Max Input Voltage |
5.5V |
Current - Output / Channel |
750mA Switch |
Internal Switch(s) |
Yes |
Dimming |
Analog, PWM |
Number of Segments |
10 |
Switching Frequency |
1MHz |
Multiplexed Display Capability |
NO |
Height Seated (Max) |
0.8mm |
Width |
4mm |
Radiation Hardening |
No |
REACH SVHC |
No SVHC |
RoHS Status |
Non-RoHS Compliant |
Lead Free |
Contains Lead |
LM3503SQ-44 Overview
In order to save board space, the 16-WFQFN Exposed Pad package is used. A LED driver using this design has 2 outputs.The mounting method adopted is Surface Mount.It emergys as a DC DC Regulator with high efficiency and reliable performance.LED drivers capable of operating at -40°C~85°C TA can be used.Backlight has considerable advantages.There are 16 terminations that are designed to operate with it.A configuration of this chip is made up of 16 pins.The number of segments is 10.The mount is in the direction of Surface Mount.The LED driver is available under the part number LM3503.It is acceptable to have a maximum voltage of 5.5V.The device has a voltage output of 44V volts.A device with 16 pins is available.Further, it can be classified as Display Drivers based on its characteristics.As its minimal input voltage, it operates at 2.5V.For maximum efficiency, it operates at the minimal voltage of 2.5V.Whenever the maximum supply current is allowed, the value reaches 5.5V.The current that can be supplied to the load is 20mA.As long as the switching frequency is maintained at 1MHz, this electronic component is able to perform all of its functions properly.Absent external factors, there is 1.9mA consumption of current.Voltages above 44V should not be allowed.
LM3503SQ-44 Features
Available in the 16-WFQFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Supply voltage of 3.6V
Switching frequency of 1MHz
LM3503SQ-44 Applications
There are a lot of Texas Instruments LM3503SQ-44 LED Driver ICs applications.
- White LED Backlight for portable equipment
- LED Lighting PFCs, Linear Dimmable
- Linear fluorescent
- Replacement lamps
- Down lights
- Power source for accessories such as car audios, car navigation systems, and ETC systems
- Gallery lighting
- Amusement Machines
- Panel lighting
- LED Lightings for Inspection Devices