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Texas Instruments LM3502SQX-25/NOPB — Power Management (PMIC / Gate Driver)

LM3502SQX-25/NOPB DC-DC Boost Regulator, 25 V Output

MPNLM3502SQX-25/NOPB
Obsolete

Texas Instruments LM3502SQX-25/NOPB, DC DC Regulator, Boost (Step-Up) topology, 1 MHz switching, PWM dimming, 25 V output, 2 outputs, 600 mA switch, 16-WQFN (4x4), -40°C~85°C.

Texas Instruments LM3502SQX-25/NOPB datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3502SQX-25/NOPB specifications
ParameterValue
TypeDC DC Regulator
MountingSurface Mount
Voltage - output25V
Supply voltage5.5V
Current - output (Channel)600mA (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

25 V boost with PWM dimming for backlight

It integrates two output channels, each capable of driving LED strings up to 25 V, with a 600 mA internal switch supporting the boost conversion. PWM dimming is supported directly, giving firmware control over brightness without an external dimming signal generator.

For BOM lines already qualified to this regulator, the only procurement path is the surplus and broker market. We source LM3502SQX-25/NOPB against an RFQ, confirming date-code provenance and device authenticity before shipment.

Surface-mount assembly follows standard lead-free reflow profiles.

Frequently asked questions

Does LM3502SQX-25/NOPB support PWM dimming?

Yes, PWM dimming is a listed feature. The dimming signal is applied to the enable pin or a dedicated PWM input, allowing the controller to modulate LED current at a frequency above visible flicker.