Texas Instruments LP3985IBL-3.3/NOPB

Mfr. Part

LP3985IBL-3.3/NOPB

Manufacturer

Luminary Micro Texas Instruments

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Detailed Description

Fixed 3.3 V low-dropout linear regulator in a tiny 5-DSBGA package. Delivers up to 150 mA with only 0.1 V max dropout at full load. High PSRR from 1 kHz to 10 kHz helps clean noisy rails. Wide input up to 6 V. Single-channel positive regulator with enable. Operates from -40 C to 125 C. RoHS3 compliant. Packaged for tape and reel. Base product number LP3985

Key Features

Output voltage 3.3 V fixed

Output current 150 mA

Low dropout 0.1 V max at 150 mA

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

Low quiescent current about 150 µA typical and 250 µA max

Enable pin for simple on off control

Protection features over current over temperature short circuit

Output configuration positive single regulator channel

Stable with small ceramic capacitors recommended

Operating temperature -40 C to 125 C

RoHS3 compliant lead free NOPB

Key Advantages

Clean stable 3.3 V rail for sensitive analog and RF loads

Low Iq extends battery life in portable applications

Minimal heat due to very low dropout at load

Ultra small footprint saves PCB space in dense designs

Built-in protections improve reliability and reduce external parts

Enable pin supports easy power sequencing and low-power standby

Packaging

Type 5-DSBGA wafer level chip scale WFBGA DSBGA

Material silicon die with lead-free solder balls NOPB

Size 1.41 mm x 1.08 mm ultra compact

Pin configuration 5 bumps VIN VOUT EN GND BYPASS typical. See datasheet for exact ball map

Supplier device package 5-DSBGA 1.41 x 1.08

Package case 5-WFBGA DSBGA

Mounting type surface mount compatible with standard reflow

Shipping format tape and reel TR for automated pick-and-place

Thermal characteristics small die-size package. Use solid ground plane and adequate copper for heat spreading. Device includes thermal shutdown

Electrical properties input up to 6 V output fixed 3.3 V dropout 0.1 V max at 150 mA PSRR 50 dB to 40 dB from 1 kHz to 10 kHz quiescent current ~150 µA typical supply current 250 µA max single regulator channel

Lifecycle

Current status active and available. Not nearing discontinuation to the best of our knowledge

Equivalent and alternative models to consider

- Texas Instruments LP5907-3.3 250 mA low noise high PSRR

- Texas Instruments TPS7A02-3.3 200 mA ultra low quiescent current tiny package

- Texas Instruments TPS7A05-3.3 300 mA low dropout high PSRR

- Texas Instruments TLV70033 200 mA low quiescent current

- Analog Devices ADP151-3.3 200 mA low noise high PSRR

- Analog Devices ADP160-3.3 150 mA ultralow quiescent current

- Microchip MIC5205-3.3 150 mA low dropout

- ON Semiconductor NCP114-3.3 300 mA low dropout high PSRR

- Richtek RT9193-33 300 mA low noise LDO

- Torex XC6219-3.3 250 mA CMOS LDO

Always check pinout ball map maximum ratings and stability requirements before substituting

If you need other cross references or lifecycle confirmation contact our sales team via the Y-IC website for the latest guidance

Key Application Areas

Wearables handhelds and battery powered devices

RF modules Bluetooth Wi-Fi GPS transceivers

Precision sensors analog front ends and ADC DAC rails

Microcontrollers DSPs and digital logic at 3.3 V

Audio codecs microphones and low-noise preamps

Camera and imaging modules ISP and sensor rails

IoT nodes medical devices and industrial controllers

Post regulation after DC DC converters to reduce ripple

Datasheet

Y-IC hosts the most authoritative datasheet for this product model. Download it on this page to get the exact specifications ball map recommended components and application guidance

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