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Texas Instruments TPS65123RGTT — Power Management (PMIC / Gate Driver)

TPS65123RGTT – Texas Instruments TFT LCD Bias Supply PMIC

MPNTPS65123RGTT
Active

Texas Instruments TPS65123RGTT, Power Management (PMIC / Gate Driver), 4-output converter for TFT LCD, input 2.5V–5.5V, outputs adjustable up to 20V and down to -18V, 16-VFQFN Exposed Pad (3x3 mm), -40°C to 85°C operation.

$3.1900Ref. price · indicative, final on quote
Texas Instruments TPS65123RGTT datasheet (PDF)
Packaging16-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS65123RGTT specifications
ParameterValue
MountingSurface Mount
Voltage - input2.5V ~ 5.5V
Voltage - output3V ~ 5.6V, Adj up to 20V, Adj down to -18V
I/O channels4
Operating temperature-40°C~85°C
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsConverter, TFT LCD
Case16-VFQFN Exposed Pad

Product details

TFT LCD bias supply with four programmable rails

The TPS65123RGTT is a four-output DC/DC converter IC from Texas Instruments purpose-built for TFT LCD panel bias generation. It accepts an input from 2.5V to 5.5V — covering single-cell Li-ion and standard 3.3V/5V logic rails — and produces a main output adjustable from 3V to 5.6V, a positive rail adjustable up to 20V, and a negative rail adjustable down to -18V, plus one additional regulated output. The fourth output is typically used for the gate-on voltage or a separate analog supply. This rail count and voltage range directly map to the bias sequence required by most TFT source drivers and gate drivers — the positive rail drives the source IC, the negative rail handles the gate-off level, and the main output powers the logic section.

Industrial temperature qualification and compact footprint

The 0.5 mm pitch QFN is manageable with standard SMT processes.

ROHS3 compliant. No known obsolescence risk for the foreseeable future.

Frequently asked questions

How can I order TPS65123RGTT or check current availability?

We source this part to order against your BOM quantity — submit an RFQ and we confirm availability and current pricing at quote time. No stock-holding claim is made here; the part is procured per your request.

What is the difference between TPS65123 and TPS65123RGTT?

TPS65123 is the base product number; TPS65123RGTT is the full orderable MPN that specifies the 16-VFQFN package (3x3 mm) supplied on tape-and-reel. The electrical characteristics are identical across all package variants of the TPS65123 family.

Can TPS65123RGTT replace a single-output regulator in a TFT bias design?

No — this is a four-output converter, not a single LDO or switcher. It generates the positive source voltage, negative gate-off voltage, main logic rail, and a fourth output in one IC. Replacing it with a single-output part would require multiple separate regulators and lose the integrated sequencing and small footprint.