Texas Instruments LP3985IBL-3.0/NOPB

Mfr. Part

LP3985IBL-3.0/NOPB

Manufacturer

Luminary Micro Texas Instruments

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Detailed Description

3 V fixed-output positive low-dropout LDO regulator delivering up to 150 mA in an ultra-small 5-DSBGA wafer-level package. Operates from inputs up to 6 V with only 100 mV dropout at full load. Includes enable control and comprehensive protection features. RoHS3 compliant. Ideal for space-limited, battery-powered designs needing clean and stable 3 V rails. Main category Integrated Circuits PMIC Voltage Regulators Linear LDO. Base product number LP3985. Mounting type Surface Mount.

Key Features

Output voltage fixed at 3 V

Output current up to 150 mA

Single regulator channel

Positive output configuration

Input voltage up to 6 V

Low dropout 0.1 V at 150 mA

PSRR about 50 dB at 1 kHz and about 40 dB at 10 kHz

Enable pin for on off control

Protections include over current over temperature and short circuit

Low quiescent current about 150 microamps typical about 250 microamps maximum

Operating temperature range minus 40 C to plus 125 C

RoHS3 compliant

Key Advantages

Very small footprint saves PCB space 1.41 mm by 1.08 mm

Low dropout improves regulation when input voltage is only slightly above 3 V

Solid PSRR helps reduce supply ripple and noise in sensitive analog RF blocks

Built in protections increase reliability and simplify design

Simple linear regulator architecture with minimal external components

Enable control supports low power states and extends battery life

Packaging

Type 5-DSBGA wafer level chip scale package also listed as 5-WFBGA DSBGA

Material lead free solder ball WLCSP construction RoHS3 compliant

Size 1.41 mm x 1.08 mm ultra compact

Pin configuration 5 ball array typical functions VIN VOUT GND EN and one auxiliary or no connect depending on variant

Mounting surface mount reflow compatible

Shipment format Tape and Reel TR for automated assembly

Thermal characteristics low thermal mass fast thermal response includes over temperature shutdown overall thermal resistance depends on PCB layout and airflow

Electrical properties input up to 6 V fixed 3 V output dropout 0.1 V at 150 mA output current up to 150 mA PSRR 50 to 40 dB low quiescent current about 150 microamps supply current about 250 microamps protections over current over temperature short circuit

Lifecycle

Current status active and widely used not nearing discontinuation based on available market information

Texas Instruments alternatives if you need different performance or packages

- LP5912 150 mA low noise LDO small footprints with enable

- LP5907 250 mA ultra low noise LDO available in 3 V small packages

- TPS7A02 200 mA ultra low quiescent current very small packages

- TPS7A05 200 mA low dropout low IQ compact options

- TLV704 200 mA general purpose LDO low quiescent current

- TPS783 150 mA ultra low IQ suited for battery powered systems

Cross brand alternatives for similar use cases

- Microchip MCP1700 or MCP1702 families up to 250 mA low quiescent current

- Analog Devices ADP150 150 mA low noise LDO

- onsemi NCP115 or NCP702 families in small packages

For drop in package compatibility or detailed replacement guidance contact our sales team via the Y-IC website for tailored support

Key Application Areas

Wearables and compact portable devices requiring a clean 3 V rail

IoT sensor nodes BLE and RF modules

Cameras image sensors and display modules

Audio and analog circuits needing good PSRR at low frequencies

Microcontrollers FPGAs and 3 V logic from battery or 5 V sources

Industrial and medical portable instruments operating across wide temperatures

Datasheet

Y-IC hosts the most authoritative and up to date datasheet for LP3985IBL-3.0/NOPB on this product page. Download it here to get full specifications application notes typical performance curves and design guidelines

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