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Texas Instruments LP3985ITLX-3.3/NOPB — Power Management (PMIC / Gate Driver)

LP3985ITLX-3.3/NOPB LDO 3.3V 150mA DSBGA

MPNLP3985ITLX-3.3/NOPB
End of Life

Texas Instruments LP3985 series LDO voltage regulator, LP3985ITLX-3.3/NOPB, fixed 3.3 V output, 150 mA, 5-WFBGA DSBGA package, surface mount.

$0.82Ref. price · indicative, final on quote
Texas Instruments LP3985ITLX-3.3/NOPB datasheet (PDF)
Packaging5-WFBGA, DSBGA
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LP3985ITLX-3.3/NOPB specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input6V
Voltage dropout0.1V @ 150mA
Voltage - output (Min (Fixed))3.3V
Output current150mA
Current - supply250 µA
Current - quiescent150 µA
Operating temperature-40°C ~ 125°C
PSRR50dB ~ 40dB (1kHz ~ 10kHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case5-WFBGA, DSBGA
Control featuresEnable
Protection featuresOver Current, Over Temperature, Short Circuit
Number of regulators1
Output configurationPositive

Product details

The LP3985ITLX-3.3/NOPB comes in a 5-WFBGA, DSBGA package with a supplier device package size of 5-DSBGA (1.41x1.08). Surface-mount mounting and a 150 mA output current make it suitable for compact, low-power designs where board area is tight.

PSRR and noise rejection

PSRR is rated at 50 dB to 40 dB from 1 kHz to 10 kHz, which means it attenuates ripple from a switching converter or digital noise on the input rail by a factor of 100 to 100 at those frequencies. For a 150 mA LDO in a DSBGA package, this PSRR range is typical for the class and sufficient for cleaning up a 1 MHz switching supply's fundamental and second harmonic.

Dropout and quiescent current

Quiescent current is 150 µA typical, with a maximum supply current of 250 µA — low enough for battery-powered devices that spend most of their time in active mode.