PREF4132B33DBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The PREF4132B33DBVRQ1 is a Texas Instruments automotive-grade 3.3 V precision voltage reference with 12 ppm/°C temperature coefficient, low noise, and low power consumption in a 5-pin SOT-23 package for AEC-Q100-qualified designs. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PREF4132B33DBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- 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 PREF4132B33DBVRQ1?
- 3.3 V precision output with ±1.65 mV tight initial accuracy window
- Ultra-low 12 ppm/°C temperature coefficient for stable reference over temperature
- Low-noise, low-power design for battery and automotive sensor applications
- AEC-Q100 automotive-qualified for reliable operation in vehicle environments
- Compact 5-pin SOT-23 package (R-PDSO-G5) for space-constrained designs
- Single 3-terminal voltage reference architecture simplifies circuit design
What is PREF4132B33DBVRQ1 used for?
The PREF4132B33DBVRQ1 is designed for automotive sensor interfaces, instrumentation amplifiers, and ADC reference circuits requiring a stable 3.3 V reference with low drift across the automotive temperature range. It is also used in body control modules, ADAS sensor conditioning circuits, and precision data acquisition front ends where the 12 ppm/°C drift minimizes calibration requirements over the vehicle lifetime.
What are the specifications of PREF4132B33DBVRQ1?
| Date Of Intro | 2020-02-22 |
| YTEOL | 0 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.01A |
| Output Voltage-Max | 3.30165V |
| Output Voltage-Min | 3.29835V |
| 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 |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 0.1mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 3.34835V |
| Surface Mount | YES |
| Technology | CMOS |
| Temp Coef of Voltage-Max | 30ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.05% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the PREF4132B33DBVRQ1 datasheet?
PREF4132B33DBVRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PREF4132B33DBVRQ1?
Compatible alternatives and drop-in replacements for PREF4132B33DBVRQ1:
Frequently Asked Questions
How stable is the PREF4132B33DBVRQ1 output voltage over the automotive temperature range, and what does 12 ppm/°C mean in practice?
The PREF4132B33DBVRQ1 has a 12 ppm/°C temperature coefficient on its 3.3 V output. Over a 150°C automotive temperature span from -40°C to +125°C, this translates to approximately ±6 mV maximum drift, ensuring the reference stays within ±1.8 mV/V of its 3.3 V nominal value — critical for 12-bit and higher ADC accuracy in vehicle sensor circuits.
What output current capability does the PREF4132B33DBVRQ1 provide, and which ADC reference topologies does it support?
The PREF4132B33DBVRQ1 can source up to 10 mA maximum output current at 3.3 V, sufficient to drive the reference input of most 12-bit and 16-bit SAR ADCs in automotive sensor conditioning circuits. Its single-output three-terminal topology directly replaces shunt or series reference designs without additional buffer stages for loads below 10 mA.
Why is the PREF4132B33DBVRQ1's SOT-23 package particularly well suited for automotive ECU space-constrained PCB layouts?
The 5-pin SOT-23 package (JESD-30 code R-PDSO-G5) occupies a PCB footprint of approximately 2.9 mm × 1.6 mm, making it one of the smallest available formats for a precision voltage reference. This allows placement adjacent to ADC pins on dense automotive ECU boards without requiring a dedicated power reference region, reducing trace length to the reference input and minimizing noise pickup.
Given the PREF4132B33DBVRQ1 has a YTEOL of 0, what procurement strategy should automotive OEMs adopt for long-lifecycle vehicle programs?
A YTEOL of 0 indicates the PREF4132B33DBVRQ1 is at or near end-of-life, which is a significant risk for automotive programs with 10 to 15 year production horizons. Procurement teams should immediately qualify a form-fit-function replacement with matching 3.3 V output, 12 ppm/°C or better drift, and AEC-Q100 qualification, and secure last-time-buy inventory to bridge the gap during requalification.
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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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