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Texas Instruments TPS61183RTJR — Power Management (PMIC / Gate Driver)

TPS61183RTJR DC DC Regulator, 6-Channel Boost LED Driver

MPNTPS61183RTJR
Active

Texas Instruments TPS61183RTJR, DC DC Regulator, Step-Up (Boost) Topology, 6 Outputs, 30 mA per Channel, 38V Output, PWM Dimming, 300kHz~1MHz, 20-WFQFN Exposed Pad, -40°C~85°C.

$1.2885Ref. price · indicative, final on quote
Texas Instruments TPS61183RTJR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS61183RTJR specifications
ParameterValue
TypeDC DC Regulator
MountingSurface Mount
Voltage - output38V
Supply voltage4.5V
Current - output (Channel)30mA
Frequency300kHz ~ 1MHz
I/O channels6
Operating temperature-40°C~85°C(TA)
DimmingPWM
PackageTape & Reel (TR); Cut Tape (CT)
TopologyStep-Up (Boost)
ApplicationsBacklight
Case20-WFQFN Exposed Pad
Internal switchYes

Product details

6-channel boost LED driver with integrated switches

It integrates six current-sink outputs, each rated for 30 mA, and includes internal switching MOSFETs — no external power FET is needed for the boost stage. The output can reach 38 V, which supports series strings of up to 10–12 white LEDs per channel depending on forward voltage. PWM dimming is handled on-chip, allowing brightness control without an external PWM generator.

38 V output, 30 mA per channel — sizing the LED load

The 38 V output ceiling and 30 mA per-channel current define the maximum LED string length and brightness. For a typical 3.2 Vf white LED, six channels of ten series LEDs each draw 180 mA total from the boost — well within the device's capability. The 300 kHz to 1 MHz switching frequency range lets the designer optimise between inductor size and switching losses.

Industrial temperature grade — not automotive-rated

For under-hood or cabin LED backlighting requiring -40°C to 125°C, a different driver with automotive qualification would be needed.

Frequently asked questions

Is TPS61183RTJR suitable for automotive LED backlighting?

No. This part is not rated for those environments.

Does TPS61183RTJR require an external MOSFET?

No. The device includes internal switching MOSFETs (Internal Switch(s) = Yes). The boost converter is self-contained; no external power FET is needed.

Can TPS61183RTJR drive six separate LED strings?

Yes. The part has six independent current-sink outputs, each rated for 30 mA. Six separate LED strings can be driven, with each string's current regulated individually.

What is the typical switching frequency range of TPS61183RTJR?

The switching frequency is programmable from 300 kHz to 1 MHz. This range allows the designer to trade off inductor size (higher frequency) against switching losses (lower frequency).