LM4128BQ1MFX3.3/NOPB Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The LM4128BQ1MFX3.3/NOPB is a precision 3.3 V automotive-grade voltage reference IC from Texas Instruments. It supplies up to 20 mA output current, operates from a 2.2 V to 5.5 V input range, and is qualified for automotive applications in a compact 5-pin SOT-23 package.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LM4128BQ1MFX3.3/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5800(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM4128BQ1MFX3.3/NOPB?
- Fixed 3.3 V precision output voltage with low initial accuracy for stable analog references
- Automotive AEC-Q100 qualified (Grade B) for reliable operation in harsh environments
- Wide input voltage range of 2.2 V to 5.5 V suits 3.3 V and 5 V system rails
- Capable of sourcing up to 20 mA output current for powering multiple analog loads
- Compact 5-pin SOT-23 package minimizes PCB footprint in space-constrained designs
What is LM4128BQ1MFX3.3/NOPB used for?
The LM4128BQ1MFX3.3/NOPB is designed for automotive infotainment, ADAS sensor modules, and body electronics where a stable 3.3 V analog reference is required. It serves as the precision voltage reference for ADCs, DACs, and sensor signal-conditioning circuits operating from a 5 V or 3.3 V rail. Its AEC-Q100 qualification and wide operating temperature range make it ideal for under-hood and dashboard electronic systems.
What are the specifications of LM4128BQ1MFX3.3/NOPB?
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.2V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 3.3066V |
| Output Voltage-Min | 3.2934V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 75ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.2% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM4128BQ1MFX3.3/NOPB datasheet?
LM4128BQ1MFX3.3/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4128BQ1MFX3.3/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does LM4128BQ1MFX3.3/NOPB support and how does it affect design flexibility?
The LM4128BQ1MFX3.3/NOPB accepts input voltages from 2.2 V to 5.5 V, making it compatible with both 3.3 V and 5 V system power rails. This flexibility allows engineers to use a single reference IC across different automotive platform voltage domains without redesigning the reference circuit.
How much output current can LM4128BQ1MFX3.3/NOPB source for connected analog circuits?
The LM4128BQ1MFX3.3/NOPB can source up to 20 mA of output current at its fixed 3.3 V reference output. This is sufficient to simultaneously power multiple ADC reference inputs, precision op-amp bias networks, or analog sensor excitation circuits in a typical automotive module design.
Is LM4128BQ1MFX3.3/NOPB suitable for automotive safety-critical applications?
Yes, the LM4128BQ1MFX3.3/NOPB carries AEC-Q100 automotive qualification (Grade B), covering a temperature range appropriate for automotive environments. Its precision 3.3 V output and compliance with automotive reliability standards make it suitable for ADAS sensor interfaces, engine control units, and other safety-relevant electronic control modules.
Which package does LM4128BQ1MFX3.3/NOPB use and how does it aid PCB layout in constrained spaces?
The device is housed in a 5-pin SOT-23 surface-mount package (JESD-30 R-PDSO-G5), one of the smallest commercially available IC packages measuring approximately 1.6 mm x 2.9 mm. This compact footprint is ideal for automotive modules and portable instruments where board real estate is limited and a through-hole component would be impractical.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| 10+ | $2.3800 | $23.80 |
| 100+ | $2.3700 | $237.00 |
| 3000+ | $1.5800 | $4740.00 |
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