NS LP3986TLX-2929

Mfr. Part

LP3986TLX-2929

Manufacturer

Luminary Micro / Texas Instruments

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Detailed Description

LP3986TLX-2929 NS low-dropout linear regulator variant with fixed 2.9 V output configuration indicated by the -2929 suffix

Main Category Integrated Circuits ICs

Small Classification Specialized ICs

Package BGA8

Package / Case 869

Available stock 2110 units

Compact, low-noise, high-PSRR LDO designed for space-constrained, battery-powered, and noise-sensitive rails

National Semiconductor heritage product now under TI portfolio

Key Features

Fixed 2.9 V output variant for clean, stable power

High PSRR to filter supply ripple and noise

Very low output noise with bypass support on applicable variants

Low dropout for better efficiency at low headroom

Low quiescent current to extend battery life

Fast turn-on and enable control for power sequencing

Current limit and thermal shutdown protection built in

Stable with small ceramic output capacitors

Ultra-small 8-ball chip-scale BGA footprint

Key Advantages

Clean power for RF, audio, sensors, and precision analog blocks

Saves board space with tiny BGA8 package

Improves battery life with low Iq and low dropout

Protects downstream circuits with robust fault protections

Simple integration and easy layout with minimal external parts

Packaging

Type 8-ball chip-scale BGA micro SMD style

Material epoxy mold or wafer-level chip-scale with SnAgCu solder balls typical

Size ultra-compact footprint generally around the 2 mm class square body range with fine ball pitch; exact dimensions and land pattern are defined in the datasheet

Pin configuration typical LDO signals including VIN, VOUT, GND, EN, BYPASS or bias pins depending on variant; consult the datasheet for the exact ball map for TLX-2929

Thermal characteristics optimized for short thermal paths through balls to PCB; limited dissipation due to small case, follow thermal derating in the datasheet

Electrical properties fixed 2.9 V output option, high PSRR, low noise, low dropout behavior, protection features; exact limits and performance curves are in the datasheet

Lifecycle

Status mature TI catalog product family; package and specific -2929 option availability can vary by region and time

Not known to be at immediate end-of-life, but check current status with us for the TLX-2929 code and BGA8 case

Potential alternatives depending on your exact voltage, current, noise, and package needs

- Texas Instruments LP5907 series low-noise LDOs in small packages

- Texas Instruments TPS7A02 and TPS7A05 ultra-low Iq LDOs

- Texas Instruments TPS736 and TPS732 families for fixed-voltage rails

- Analog Devices ADP160 and ADP151 low-noise LDOs

- Microchip MIC5219 and Microchip MCP1703 families

- ON Semiconductor NCP4681 and NCP161 series

Important note suitability depends on output voltage, current, PSRR, noise, dropout, and pinout. Contact Y-IC sales for a targeted cross and guaranteed compatibility for your application.

Key Application Areas

Mobile and wearable devices battery-powered rails

RF front-ends and wireless modules needing clean bias

Audio codecs, DACs, and high-fidelity analog paths

Image sensors, camera modules, and precision sensors

MCU and digital logic auxiliary rails

FPGA and ASIC low-noise reference rails

IoT nodes and low-power instrumentation

Datasheet

Our website hosts the most authoritative datasheet for LP3986TLX-2929. Download it on this page to get exact pin maps, electrical limits, layout guidance, and thermal derating. Always verify final design details against the datasheet.

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