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Texas Instruments LP2988IMM-2.8/NOPB — Analog & Data Acquisition

LP2988IMM-2.8/NOPB LDO Regulator, 200mA, 2.8V Fixed

MPNLP2988IMM-2.8/NOPB
End of Life

Texas Instruments LP2988IMM-2.8/NOPB, fixed positive LDO regulator, 200 mA output, 2.8 V, 8-MSOP package, -40°C to 125°C, 65 dB PSRR at 1 kHz.

$0.82Ref. price · indicative, final on quote
Texas Instruments LP2988IMM-2.8/NOPB datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LP2988IMM-2.8/NOPB specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input16V
Voltage dropout0.35V @ 200mA
Voltage - output (Min (Fixed))2.8V
Output current200mA
Current - supply3.7 mA
Current - quiescent120 µA
Operating temperature-40°C ~ 125°C
PSRR65dB (1kHz)
PackageBulk
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Control featuresEnable
Protection featuresOver Current, Over Temperature, Short Circuit
Number of regulators1
Output configurationPositive

Product details

The LP2988IMM-2.8/NOPB is a fixed positive LDO regulator delivering up to 200 mA at 2.8 V output, with a maximum dropout voltage of 0.35 V at full load. The 65 dB PSRR at 1 kHz means this part rejects ripple from a switching preregulator by a factor of ~1800, which is adequate for most analog front-ends and wireless transceivers drawing under 200 mA. The -40°C to 125°C operating range spans industrial and automotive ambient requirements.

Low quiescent current and protection suite for battery-powered analog rails

Quiescent current is 120 µA typical, which keeps the regulator's own draw below 0.06% of the 200 mA load — important for battery-powered sensors that spend most of their time in a low-power idle state and wake briefly to transmit. The Enable control pin lets a microcontroller or supervisor gate the output — when pulled low the regulator drops into shutdown, further cutting supply current below the 120 µA Iq figure.

8-MSOP footprint and supply rails for integration into mixed-signal boards

The supplier device package is 8-VSSOP, which is the same mechanical outline — a single PCB footprint serves both package codes.

Frequently asked questions

What is the PSRR of LP2988IMM-2.8/NOPB?

The power-supply rejection ratio is 65 dB at 1 kHz. This is a typical figure for a general-purpose LDO in this class — it attenuates 100 mV of ripple at 1 kHz down to roughly 56 µV at the output, sufficient for 12-bit analog circuits and most wireless transceivers.

Does LP2988IMM-2.8/NOPB drop in as a replacement for TLV74333PDQNR?

No. LP2988IMM-2.8/NOPB outputs a fixed 2.8 V, while TLV74333PDQNR outputs 3.3 V. The packages differ (8-MSOP vs the TLV74333's package), and the TLV74333 has a lower 5.5 V maximum input versus 16 V on this part. The dropout and quiescent characteristics are not equivalent. A board spin or at least a layout review is required.