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Texas Instruments LM3508TLX/NOPB — Power Management (PMIC / Gate Driver)

LM3508TLX/NOPB – TI Boost LED Driver, 30 mA, 9-DSBGA

MPNLM3508TLX/NOPB
Active

Texas Instruments LM3508TLX/NOPB, DC-DC Regulator, Step-Up (Boost) topology, 850 kHz switching, 17.5 V output, 30 mA per channel, PWM dimming, 9-WFBGA DSBGA package, -30°C to 85°C.

$0.7400Ref. price · indicative, final on quote
Texas Instruments LM3508TLX/NOPB datasheet (PDF)
Packaging9-WFBGA, DSBGA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM3508TLX/NOPB specifications
ParameterValue
TypeDC DC Regulator
MountingSurface Mount
Voltage - output17.5V
Supply voltage5.5V
Current - output (Channel)30mA
Frequency850kHz
I/O channels1
Operating temperature-30°C~85°C(TA)
DimmingPWM
PackageTape & Reel (TR); Cut Tape (CT)
TopologyStep-Up (Boost)
ApplicationsBacklight
Case9-WFBGA, DSBGA
Internal switchYes

Product details

Boost LED driver for single-cell backlights

It delivers up to 30 mA per channel at a regulated 17.5 V output. Switching at 850 kHz, the part keeps the external inductor small.

Supply range and dimming flexibility

Brightness is controlled via a PWM signal on the dimming pin — no external DAC or analog voltage reference needed. The PWM duty cycle directly sets the LED current, making it a clean interface to a microcontroller GPIO.

Rated for -30°C to 85°C ambient, it covers consumer and commercial backlight use (tablets, phones, portable instruments) but is not qualified for automotive or extended industrial temperature ranges.

ROHS3 compliant, with no exemptions that would complicate EU or California market shipments.

Frequently asked questions

What is the closest functional second-source to LM3508TLX/NOPB?

Package and pinout differ — the LM2703 comes in an SOT-23-5, so a layout change is required.

Is LM3508TLX/NOPB RoHS compliant?

Yes, it is ROHS3 compliant per the Texas Instruments listing.