Texas Instruments LM4040CIM3X-3.0/NOPB

Mfr. Part

LM4040CIM3X-3.0/NOPB

Manufacturer

Texas Instruments including the legacy Luminary Micro line. Y-IC is a quality distributor for Texas Instruments and we will provide you with the best products and services

Detailed Description

Precision 3.0 V shunt voltage reference in SOT-23-3. Fixed output, 0.5 percent initial accuracy, low temperature drift, and low noise. Works like a precise zener diode replacement with better stability and accuracy. Wide operating current range and small footprint make it ideal for space and power sensitive designs. RoHS 3 compliant and lead free NOPB finish

Key Features

Reference type shunt two terminal operation, third pin is no connect

Fixed 3.0 V output nominal

Initial accuracy 0.5 percent typical tolerance class C

Temperature coefficient 100 ppm per degree C

Operating current range wide. Supports low current operation and up to 15 mA

Low noise from 10 Hz to 10 kHz listed as 35 Vrms in the feed. Verify exact unit in datasheet

Low dynamic impedance for better line and load regulation

Stable without external capacitors in most layouts

SOT-23-3 industry standard footprint TO-236-3 SC-59 compatible outlines

Operating temperature range minus 40 C to plus 85 C

RoHS 3 compliant and halogen free. NOPB lead finish

Key Advantages

Simple to use. Two terminal shunt makes it a drop in upgrade to zener diodes with much better accuracy

Space saving. Tiny SOT-23-3 package fits dense PCBs

Power friendly. Works at very low currents for battery powered systems yet supports higher bias currents when needed

Robust reference across temperature and supply changes thanks to tight tolerance and low tempco

Broad ecosystem. Part of the widely used LM4040 family with pin and performance compatible options

Packaging

Supply type Tape and Reel TR for automated assembly. Also available in standard reel quantities. Quantity on hand 9900

Package and case SOT-23-3. Also referenced as TO-236-3 or SC-59 in industry catalogs

Package materials Molded epoxy body with copper alloy leadframe. Lead free NOPB plating

Typical size about 2.9 mm x 1.3 mm body with low profile height. Industry standard SOT-23 land pattern

Pin configuration two terminal shunt device. Anode and Cathode are the functional pins. The third pin is no connect. Refer to TI pin map in the datasheet for exact pin numbering and orientation

Mounting type surface mount reflow compatible. Moisture Sensitivity Level usually MSL 1. Follow label for actual MSL

Thermal characteristics small plastic package with relatively high thermal resistance. Keep dissipation low or add copper area to reduce self heating and drift

Electrical properties fixed 3.0 V nominal reference. 0.5 percent initial accuracy. Tempco 100 ppm per degree C. Operating current up to 15 mA per feed. Low noise 10 Hz to 10 kHz feed lists 35 Vrms. Verify units and limits in datasheet

Lifecycle

Status active production at Texas Instruments. Not approaching discontinuation based on public information at time of writing

Family and close equivalents within TI

- LM4040AIM3X-3.0 NOPB tighter 0.1 percent initial accuracy

- LM4040BIM3X-3.0 NOPB tighter 0.2 percent initial accuracy

- LM4040CIM3-3.0 NOPB same accuracy class different orderable and packing

- LM4040 family offers other fixed voltages such as 2.048 V 2.5 V 4.096 V 5.0 V

Functionally similar alternatives from other suppliers for design consideration

- Analog Devices ADR5030 low power 3.0 V shunt reference SOT-23 family accuracy grades vary

- onsemi LM4040CIM3-3.0T1G LM4040 family equivalent 3.0 V shunt SOT-23

- Diodes Incorporated LM4040C30 series 3.0 V shunt SOT-23

- Adjustable shunt alternatives that can be set to 3.0 V with resistors TLV431 NCP431 and similar note not drop in two terminal replacements

If you need exact drop in alternates by package pinout and accuracy grade contact Y-IC sales via our website. We will match electrical and mechanical compatibility for you

Key Application Areas

High accuracy voltage reference for ADCs DACs MCU ADC inputs

Replacement for discrete zener references in precision circuits

Portable and battery powered instruments where low current and small size matter

Precision biasing threshold detection and window comparators

Power monitors and supervisors needing a stable reference point

Sensor interfaces and analog front ends requiring stable reference voltage

Data acquisition measurement and test equipment

Wireless modules IoT nodes and handheld devices

Datasheet

Our website hosts the most authoritative and up to date datasheet for LM4040CIM3X-3.0 NOPB. Download it directly from this page to get exact pin mapping electrical limits recommended operating conditions PCB footprint and application notes

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