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Texas Instruments LM3502SQX-35/NOPB — Power Management (PMIC / Gate Driver)

LM3502SQX-35/NOPB DC DC Regulator, Boost, 35V, 750mA

MPNLM3502SQX-35/NOPB
Obsolete

Texas Instruments LM3502SQX-35/NOPB, DC DC Regulator, Step-Up (Boost), 1MHz, 35V Output, 750mA Switch Current, PWM Dimming, 16-WQFN (4x4), -40°C to 85°C.

Texas Instruments LM3502SQX-35/NOPB datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3502SQX-35/NOPB specifications
ParameterValue
TypeDC DC Regulator
MountingSurface Mount
Voltage - output35V
Supply voltage5.5V
Current - output (Channel)750mA (Switch)
Frequency1MHz
I/O channels2
Operating temperature-40°C~85°C(TA)
DimmingPWM
PackageTape & Reel (TR)
TopologyStep-Up (Boost)
ApplicationsBacklight
Case16-WFQFN Exposed Pad
Internal switchYes

Product details

Boost LED driver for backlight — 35 V output, PWM dimming

The Texas Instruments LM3502SQX-35/NOPB is a DC DC Regulator using a Step-Up (Boost) topology, designed to drive backlight LEDs. It delivers a 35 V output with a 750 mA switch current limit, and dimming is controlled via PWM input.

With two outputs and an integrated switch, this part drives two LED strings independently from a single inductor, reducing external component count. The 750 mA switch current is the peak limit through the internal FET — the actual LED current per string depends on the sense resistor and duty cycle.

Frequently asked questions

Is LM3502SQX-35/NOPB obsolete or still available?

Buyers need to know lifecycle status to decide if they can use it in new designs or must find a replacement.

What is the recommended replacement for LM3502SQX-35/NOPB?

Obsolete parts often require a substitute, and engineers/sourcers need a drop-in or functionally equivalent alternative.

Where can I buy LM3502SQX-35/NOPB and what is the current stock?

Sourcing buyers need to verify availability and pricing from distributors to fill BOM lines.

What is the pinout and package of LM3502SQX-35/NOPB?

Design engineers need to validate footprint compatibility and layout requirements before using the part.

What is the output voltage and current of LM3502SQX-35/NOPB?

Engineers must confirm the part meets their backlight LED voltage and load requirements.

Does LM3502SQX-35/NOPB have an equivalent from another manufacturer?

Buyers sourcing obsolete parts often look for cross-reference options to avoid redesign.