LM3503ITL-44/NOPB

$2.95

Description：IC LED DRIVER RGLTR DIM 10DSBGA
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk

SKU:91f64978beae Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LM3503ITL-44/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRIVER RGLTR DIM 10DSBGA. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3503ITL-44/NOPB

Description：IC LED DRIVER RGLTR DIM 10DSBGA
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：2
Voltage - Supply (Min)：2.5V
Voltage - Supply (Max)：5.5V
Voltage - Output：44V
Current - Output / Channel：750mA (Switch)
Frequency：1MHz
Dimming：Analog, PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：10-WFBGA, DSBGA
Supplier Device Package：10-TµSMD (1.9x2.07)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3503ITL-44/NOPB

LM3503ITL-44/NOPB

LED Driver IC Overview

The LM3503ITL-44/NOPB is a dual-display constant current LED driver manufactured by Texas Instruments. It features analog brightness control and operates within an input voltage range of 2.5 V to 5.5 V. The device integrates two independent boost converters capable of delivering up to 400 mA per channel, supporting high-brightness LED applications. It functions at a switching frequency of 1 MHz and includes comprehensive protection mechanisms such as over-current, thermal shutdown, and open-load detection. The component is housed in a compact 10-DSBGA package and is rated for operation across a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

Integrates two independent boost converters for dual-display LED driving
Supports analog brightness control for precise intensity adjustment
Includes built-in protection against over-current, thermal events, and open loads

LED Driver IC Applications

Smartphone backlight systems
Tablet display illumination
Portable electronic device lighting

LED Driver IC Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence when sourcing. Confirm the 'ITL' designation matches the required 10-DSBGA package variant rather than other available packages like WQFN or LLP. Ensure the operating environment remains within the specified -40°C to +85°C range to maintain performance integrity.

LED Driver IC Selection Notes

Select this component for designs requiring dual-channel LED drive with minimal external components. Consider the 1 MHz switching frequency for smaller passive component sizes. Evaluate the 400 mA output limit against total LED string requirements. Verify compatibility with the system's analog dimming interface before finalizing the design.

LED Driver IC Part Context

This part belongs to the LM3503 family of power management ICs designed for portable electronics. It complements other TI LED drivers by offering dual-channel capability in a small footprint. The series supports various packaging options to suit different board space constraints while maintaining consistent electrical performance characteristics.