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Texas Instruments LM3502SQ-35/NOPB — Power Management (PMIC / Gate Driver)

LM3502SQ-35/NOPB — TI DC-DC Boost Regulator, 35V, Obsolete

MPNLM3502SQ-35/NOPB
Obsolete

Texas Instruments LM3502SQ-35/NOPB, DC-DC boost regulator, 35 V output, 2 channels, PWM dimming, 1 MHz switching frequency, 16-WQFN (4x4) package, industrial temp range -40°C to 85°C.

$1.3100Ref. price · indicative, final on quote
Texas Instruments LM3502SQ-35/NOPB datasheet (PDF)
Packaging16-WFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3502SQ-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); Cut Tape (CT)
TopologyStep-Up (Boost)
ApplicationsBacklight
Case16-WFQFN Exposed Pad
Internal switchYes

Product details

Boost regulator for dual-string backlight

The LM3502SQ-35/NOPB is a DC-DC boost regulator from Texas Instruments, designed to drive LED backlight strings. Its two independent outputs allow separate control of two LED strings, each regulated to a 35 V ceiling. PWM dimming on each channel gives the system controller fine brightness control without shifting the LED colour point.

No direct replacement or successor part is published on the TI website for this exact order code. The base product number LM3502 has no active follow-on in the same pinout. The ROHS3 compliance is intact — no lead-free transition concern for existing designs.

Frequently asked questions

How can I order the LM3502SQ-35/NOPB or check availability?

The LM3502SQ-35/NOPB is obsolete and not in active TI production. We source it through our independent supply network. Submit an RFQ with your target quantity and target date; we confirm availability and current pricing per order. No stock-holding claim is made — each quote is sourced to your BOM line.

Can the LM3502SQ be used for backlight applications?

Yes, the device is specifically listed for Backlight applications. Its two outputs and PWM dimming are well suited for LCD panel backlighting in portable or industrial displays.