Texas Instruments LP3986TL-2929/NOPB

Mfr. Part

LP3986TL-2929/NOPB

Manufacturer

Luminary Micro/Texas Instruments

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Detailed Description

Dual low-dropout linear regulator with fixed 2.9 V outputs, 150 mA per channel, high PSRR, low noise, and enable control in an ultra-small 8-DSBGA package. Operates from up to 6 V input, with robust protections and industrial temperature range. RoHS3 compliant, NOPB lead-free finish. Base product family LP3986.

Key Features

Dual LDO regulators, fixed 2.9 V outputs

150 mA per output channel

Input voltage up to 6 V

Max dropout 0.1 V at 150 mA

PSRR about 60 dB at 1 kHz and 50 dB at 10 kHz

Low quiescent current around 130 µA typical

Supply current up to about 320 µA max

Enable control for easy power sequencing

Positive output configuration

Protections include over-current, over-temperature, and short-circuit

Operating temperature range -40°C to +125°C

RoHS3 compliant and lead-free NOPB finish

Surface-mount design optimized for compact boards

Key Advantages

Very small footprint saves PCB space

Low dropout supports longer battery life

High PSRR and low noise improve power integrity for sensitive analog and RF circuits

Dual outputs simplify multi-rail designs with one tiny device

Strong protection features enhance reliability and safety

Wide input range works with varied sources including battery and adapters

Low standby current reduces system idle power

Industrial temperature rating suits harsh environments

Packaging

Type 8-DSBGA micro BGA

Case 8-WFBGA, DSBGA

Supplier device package 8-DSBGA, 1.56 mm x 1.56 mm

Material molded epoxy body with solder-ball array, NOPB lead-free plating

Size ultra-compact 1.56 x 1.56 mm footprint, low profile

Pin configuration 8-ball array for dual-output LDO control and power pins

Mounting surface mount, compatible with standard BGA reflow profiles

Tape and Reel TR for automated assembly, quantity reel example 4200 units available

Thermal characteristics designed for stable operation from -40°C to +125°C; efficient heat transfer through solder balls; consult datasheet for detailed θJA and θJC numbers

Electrical properties fixed 2.9 V outputs, 150 mA per channel, max dropout 0.1 V at 150 mA, PSRR 60–50 dB across 1–10 kHz, enable control, and full protection set

Lifecycle

Current status Active in TI’s portfolio based on latest availability

Not indicated as nearing discontinuation at this time

Equivalent and alternative models to consider

- TI LP3986 voltage variants in the same family for other fixed output voltages

- TI LP3992 dual-output LDO series for similar small, low-noise dual rails

- TI LP3988 family for compact low-noise LDO options

- TI LP5907 single-output ultra-low-noise LDO (use two for dual rails)

- TI TPS7A02 single-output nano-IQ LDO for very low quiescent current needs

- TI TPS7A05 single-output LDO, low IQ and high PSRR

- ON Semiconductor NCP4681 series low-IQ LDO options

- Microchip MCP1702 or MCP1703 single-output low-IQ LDO options

- Nexperia and ROHM dual/single LDO series as alternatives

Specs, pinouts, and thermal performance vary by device. For drop-in or closest-match replacements, contact our sales team via Y-IC’s website for a tailored cross-reference and availability.

Key Application Areas

Battery-powered IoT and sensors needing clean 2.9 V rails

Wearables and portable electronics

Wireless modules such as Wi-Fi and Bluetooth

Low-noise audio circuits and codecs

Camera and image sensor power rails

Precision analog front ends and ADC/DAC supplies

MCU, FPGA, and digital peripheral rails

Medical portable devices

Industrial controllers and instrumentation

Datasheet

Y-IC provides the most authoritative datasheet for this model on our product page. Download the datasheet here to get full electrical, mechanical, and layout guidance for LP3986TL-2929/NOPB.

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