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Texas Instruments TPS61181RTER — Power Management (PMIC / Gate Driver)

TPS61181RTER LED Driver, Boost, 6-Ch 25mA, 38V, 16-WQFN

MPNTPS61181RTER
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Texas Instruments TPS61181RTER, DC DC Regulator, Step-Up (Boost), 1 MHz, 6 Outputs, 25 mA per channel, 38 V Output, PWM Dimming, 16-WFQFN Exposed Pad, -40°C to 85°C.

$1.5600Ref. price · indicative, final on quote
Texas Instruments TPS61181RTER datasheet (PDF)
Packaging16-WFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS61181RTER specifications
ParameterValue
TypeDC DC Regulator
MountingSurface Mount
Voltage - output38V
Voltage24V
Current - output (Channel)25mA
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 regulator for LCD backlight

It integrates six current-sink channels, each rated for 25 mA, and delivers a regulated output voltage up to 38 V from a 5 V to 24 V input supply. PWM dimming is handled on-chip, so the backlight brightness can be controlled directly from a display controller or PWM source without an external dimming switch.

Output voltage ceiling and string configuration

The 38 V maximum output voltage sets the practical series LED string length. Each of the six channels regulates its own 25 mA current sink independently.

For dual-source planning, the LM2703MF-ADJ/NOPB is a single-channel boost regulator in the same DC-DC regulator class, but its 350 mA output and single channel serve a different LED string topology — it is not a pin-compatible drop-in for the six-channel TPS61181RTER.

Frequently asked questions

Does the TPS61181RTER have internal switches?

Yes, the boost switch is integrated internally. The external BOM is limited to the inductor, capacitors, current-set resistor, and LED strings.

Is there a direct replacement for TPS61181RTER?

The LM2703MF-ADJ/NOPB is a single-channel boost regulator in the same DC-DC regulator class, but it delivers 350 mA on one output — not a pin-compatible or functional replacement for the six-channel, 25 mA per channel TPS61181RTER.