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Texas Instruments LM317LIBP — Power Management (PMIC / Gate Driver)

LM317LIBP adjustable regulator, 100 mA, 6-VFBGA, obsolete

MPNLM317LIBP
Obsolete

Texas Instruments LM317LIBP adjustable positive voltage regulator, 100 mA output, 1.2 V to 37 V range, 40 V max input, PSRR 80 dB ~ 65 dB at 120 Hz, 6-VFBGA package, -40°C to 125°C operation.

Texas Instruments LM317LIBP datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM317LIBP specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input40V
Voltage - output37V
Voltage - output (Min (Fixed))1.2V
Output current100mA
Current - quiescent2.5 mA
Operating temperature-40°C~125°C
PSRR80dB ~ 65dB (120Hz)
PackageTape & Reel (TR); Cut Tape (CT)
Case6-VFBGA
Protection featuresOver Current, Over Temperature, Short Circuit
Number of regulators1
Output configurationPositive

Product details

The Texas Instruments LM317LIBP is an adjustable positive voltage regulator in a 6-ball VFBGA package — an unusual footprint for the classic three-terminal regulator topology. It delivers up to 100 mA output current with an adjustable output from 1.2 V up to 37 V, supplied from a maximum input of 40 V.

PSRR and the 120 Hz ripple floor

PSRR is specified at 80 dB to 65 dB at 120 Hz — the line-frequency rejection that matters most in a rectified-supply design.

Package reality: 6-VFBGA on a classic regulator

This part is supplied in a 6-VFBGA (also listed as 6-DSBGA) package — a 6-ball, 0.50 mm or 0.65 mm pitch BGA that is very different from the familiar TO-220 or SOT-223 of the standard LM317.

Obsolete — sourcing path

Frequently asked questions

Can LM317LIBP be used as a variable voltage regulator?

Yes, the LM317LIBP is an adjustable positive voltage regulator with an output that can be set from 1.2 V to 37 V using an external resistor divider.