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Texas Instruments TPS61181ARTER — DC-DC Power Modules

TPS61181ARTER DC-DC Boost Regulator, 6-Channel LED Driver

MPNTPS61181ARTER
Active

Texas Instruments TPS61181ARTER, DC-DC Step-Up (Boost) Regulator, 6 Outputs, 30 mA per channel, 38 V Output, 1 MHz, PWM Dimming, 16-WFQFN Exposed Pad, -40°C to 85°C, Active.

$0.7875Ref. price · indicative, final on quote
Texas Instruments TPS61181ARTER datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS61181ARTER specifications
ParameterValue
TypeDC DC Regulator
MountingSurface Mount
Voltage - output38V
Supply voltage4.5V
Current - output (Channel)30mA
Frequency1MHz
I/O channels6
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

Six-channel boost for LED backlight strings

Each channel delivers up to 30 mA, with the boost output rated to 38 V to accommodate multiple series-connected LEDs per string.

PWM dimming and supply range

Brightness control uses PWM dimming, which gives a wide dimming ratio without shifting the LED colour temperature — the standard method for LCD backlight controllers. The input supply range spans 4.5 V to 24 V, covering common rails from 5 V USB to 12 V or 24 V industrial supplies.

Surface-mount reflow with a standard lead-free profile applies; no special moisture sensitivity level is flagged in the listing, but the QFN package benefits from a pre-bake if the reel seal is broken.

Frequently asked questions

Is TPS61181ARTER obsolete or end-of-life?

No.

What is the maximum number of LEDs the TPS61181ARTER can support?

The TPS61181ARTER drives up to six LED strings, each at up to 30 mA. The maximum number of LEDs per string depends on the forward voltage of the LEDs and the 38 V output ceiling — typically 8 to 10 white LEDs in series per string, assuming a 3 V forward drop each.

Is TPS61181ARTER compatible with a 3.3 V input?

No. The minimum supply voltage is 4.5 V. A 3.3 V rail is below the operating range; a boost converter would need to be powered from a higher-voltage supply or a separate 5 V rail.