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Texas Instruments TPS7A0528PDQNT — Analog & Data Acquisition

TPS7A0528PDQNT LDO Regulator, 2.8V Fixed, 200mA, 40dB PSRR

MPNTPS7A0528PDQNT
End of Life

Texas Instruments TPS7A0528PDQNT, LDO Voltage Regulator, Fixed 2.8V Output, 200mA, 40dB PSRR (1kHz~1MHz), 3µA Iq, 4-X2SON (1x1mm), -40°C to 125°C.

$1.37Ref. price · indicative, final on quote
Texas Instruments TPS7A0528PDQNT datasheet (PDF)
Packaging4-XDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS7A0528PDQNT specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input5.5V
Voltage dropout0.308V @ 200mA
Voltage - output (Min (Fixed))2.8V
Output current200mA
Current - quiescent3 µA
Operating temperature-40°C ~ 125°C (TJ)
PSRR40dB (1kHz ~ 1MHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case4-XDFN Exposed Pad
Control featuresEnable
Protection featuresOver Current, Over Temperature, Under Voltage Lockout (UVLO)
Number of regulators1
Output configurationPositive

Product details

What this LDO brings to the rail

The Texas Instruments TPS7A0528PDQNT is a fixed 2.8 V output, 200 mA LDO in a 4-X2SON package (1x1 mm). It pulls just 3 µA quiescent current, making it a candidate for battery-powered or always-on rails where every microamp counts. The 40 dB PSRR holds flat from 1 kHz to 1 MHz, so it cleans up switching-regulator ripple across a wide band — useful for analog or RF front-end supplies that can't tolerate noise.

Protection and control

Built-in over-current, over-temperature, and under-voltage lockout (UVLO) protect the load and the regulator itself. The Enable pin lets a microcontroller or power sequencer gate the output — no external load-switch needed for a 200 mA rail.

That covers automotive under-hood, outdoor telecom cabinets, and industrial enclosures where the board sees thermal cycling. The 4-X2SON with exposed pad helps pull heat into the PCB copper — no heatsink, but the board layout needs a thermal via under the pad.

Frequently asked questions

Is TPS7A0528PDQNT a replacement for TPS7A0528PDRVR?

The TPS7A0528PDRVR is the same regulator in a 4-X2SON package with the same 1x1 mm footprint and identical electrical specs. Verify the specific package code and marking for your assembly — they are functionally interchangeable.

What is TPS7A0528PDQNT's PSRR?

PSRR is 40 dB across the 1 kHz to 1 MHz frequency range — that is the same figure at both ends, so the rejection stays flat through the switching-regulator noise band.