Texas Instruments TPS7A2028PDBVR

Mfr. Part

TPS7A2028PDBVR

Manufacturer

Luminary Micro/Texas Instruments

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Detailed Description

300 mA, positive, fixed 2.8 V low-dropout linear regulator in a compact 5-pin SOT-23 package. Wide input up to 6 V, low dropout of 140 mV at full load, high PSRR (65 dB at 100 Hz down to 40 dB at 1 MHz), and integrated enable and protections. RoHS3 compliant. Surface-mount device with operating junction temperature from -40°C to 125°C. Base product number TPS7A2028.

Key Features

Fixed 2.8 V output, single regulator channel

300 mA continuous output current

Up to 6 V input

Low dropout: 0.14 V at 300 mA

High PSRR: 65 dB (100 Hz) to 40 dB (1 MHz)

Low quiescent current around 15 µA (typical); supply current up to 2 mA

Enable pin for simple on/off control

Protection features: overcurrent (OCP), thermal shutdown (OTP), under-voltage lockout (UVLO)

Positive output configuration

RoHS3 compliant; SOT-23-5 footprint for easy PCB layout

Key Advantages

Clean, low-noise output for sensitive analog and RF circuits due to high PSRR

Low Iq helps extend battery life in portable designs

Small SOT-23-5 package reduces board space and BOM complexity

Reliable operation across -40°C to 125°C TJ with robust built-in protections

Simple power sequencing and control through the enable pin

Straightforward drop-in for many 2.8 V rails with minimal external components

Packaging

Type: SOT-23-5 (also known as SC-74A, SOT-753); supplier device package SOT-23-5

Delivery: Tape & Reel (TR) for automated SMT assembly

Material: Molded epoxy body; matte-tin plated leads; Pb-free and RoHS3 compliant

Size: Approx. 2.9 mm x 1.6 mm x 1.1 mm body; ~0.95 mm lead pitch (typical for SOT-23-5)

Mounting: Surface mount (SMT)

Pin configuration (fixed-output variant): IN, GND, EN, OUT, NC (refer to datasheet for exact pin order and functions)

Thermal characteristics: Junction temperature (TJ) -40°C to 125°C; typical SOT-23-5 RθJA around 200–230°C/W depending on PCB layout and copper area

Electrical properties: Positive LDO, fixed 2.8 V output, 300 mA max, dropout 0.14 V @ 300 mA, PSRR 65–40 dB (100 Hz–1 MHz), low Iq ~15 µA (typ), max input 6 V, protections OCP/OTP/UVLO, enable control

Lifecycle

Status: Active and well-supported; not nearing discontinuation based on current industry information

Equivalent or alternative options:

- Same family: TPS7A20 fixed-voltage variants in the same SOT-23-5 footprint (other outputs like 1.8 V, 2.5 V, 3.3 V are available for different rail needs)

- TI close alternatives: TLV70228 (300 mA, 2.8 V, SOT-23-5), TPS732xx (250 mA, high PSRR, SOT-23), TPS736xx (400 mA, high PSRR)

- Cross-vendor examples: ON Semiconductor NCP4681 (2.8 V LDO, low noise, SOT-23), Microchip MCP1727-2802 (300 mA class, SOT-23), Analog Devices ADP7118-2.8 (low-noise LDO, small footprint)

For drop-in equivalents or footprint-compatible replacements, and the latest lifecycle status, please contact our sales team via the Y-IC website for tailored guidance

Key Application Areas

Battery-powered and portable electronics

Noise-sensitive analog front-ends, sensors, ADC/DAC rails

RF modules, wireless transceivers, GPS/Bluetooth circuits

Microcontroller and digital logic rails requiring 2.8 V

IoT nodes, wearables, handheld instruments

Industrial control and instrumentation needing a stable 2.8 V supply

Datasheet

Our website hosts the most authoritative datasheet for TPS7A2028PDBVR. Download it on this page to get complete specifications, pinout, layout recommendations, and thermal data.

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