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Texas Instruments LM4132BQ1MFR3.0
- Part No.:
- LM4132BQ1MFR3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BQ1MFR3.0.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,983
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Product details
Overview
LM4132BQ1MFR3.0 from Texas Instruments is an automotive-grade precision low-dropout voltage reference IC in SOT-23-5 package, delivering a stable 3.0 V output with ±0.1% initial accuracy, 20 ppm/°C temperature coefficient over –40°C to +125°C, and 60 µA quiescent current. It features an enable pin for 3 µA shutdown mode and supports up to 20 mA load current-ideal for high-reliability analog sensing and ADC biasing in automotive ECUs.
For engineers reviewing the LM4132BQ1MFR3.0 datasheet, LM4132BQ1MFR3.0 pinout, LM4132BQ1MFR3.0 application, or LM4132BQ1MFR3.0 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, dropout voltage ≤400 mV at 10 mA, line regulation of 70 ppm/V, and compatibility with low-ESR ceramic capacitors without requiring an output buffer.
Technical Context
The LM4132BQ1MFR3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision in cost-effective plastic packaging. Its internal LDO topology eliminates need for external output capacitance while maintaining stability across temperature and load.
It operates from VIN = VREF + 400 mV to 5.5 V, supports enable-controlled power gating, and delivers specified performance under automotive ambient conditions (–40°C to +125°C), with HBM ESD rating of ±2000 V per AEC-Q100.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.1% (B-grade initial accuracy; enables 12-bit ADC reference with <0.5 LSB error at 25°C) |
| Tempco | 20 ppm/°C (–40°C to +125°C; ensures <±240 ppm total drift over full range) |
| Quiescent Current | 60 µA (enables multi-year battery operation in always-on automotive sensors) |
| Dropout Voltage | 400 mV max at 10 mA (supports operation from 3.4 V input-critical for post-buck or battery-depleted scenarios) |
| Enable Threshold | VIL ≤35% VIN, VIH ≥65% VIN (ensures robust logic-level interfacing with MCU GPIOs) |
| Load Current | 20 mA (drives multiple op-amp bias networks or SAR ADC references without external buffering) |
| Noise (0.1–10 Hz) | 285 µVPP (low enough for 16-bit precision measurement front-ends) |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected. Pin 1 is NC (no connect); pin 2 is GND; pin 3 is EN; pin 4 is VIN; pin 5 is VREF.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No-connect terminal | Must remain unconnected-no internal connection; floating per datasheet |
| Pin 2 (GND) | Analog ground reference | Primary return path for reference output and internal band-gap circuitry; requires low-impedance PCB tie to system AGND |
| Pin 3 (EN) | Digital enable input | Active-high control: drives internal pass element; 3 µA shutdown achieved when pulled low |
| Pin 4 (VIN) | Input supply rail | Accepts 3.4 V to 5.5 V; must be decoupled with ≥1 µF ceramic capacitor close to pin |
| Pin 5 (VREF) | Precision output terminal | Delivers regulated 3.0 V; stable with 0.1 µF–10 µF ceramic COUT (optional but recommended for transient immunity) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in automotive ECUs, including engine control and ADAS sensor modules |
| EEPROM-trimmed tempco & accuracy | Eliminates assembly-induced shifts in plastic SOT-23 packages-enables 0.1% grade without laser trimming |
| Low-noise 3.0 V output | 285 µVPP (0.1–10 Hz) supports high-resolution data acquisition without additional filtering |
| Ultra-low quiescent current | 60 µA active / 3 µA shutdown enables always-on monitoring circuits with minimal battery drain |
| No mandatory output capacitor | Stable with zero COUT-reduces BOM count and board space in space-constrained automotive modules |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Data Acquisition System |
|---|---|
Use Scenario: Providing reference voltage for oxygen sensor signal conditioning and knock detection ADCs in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Precision 3.0 V reference for 12–16-bit SAR ADCs and analog front-end op-amps. Use Value: Maintains <±0.1% output stability across thermal cycling and vibration-ensuring consistent air-fuel ratio calculation accuracy. | Use Scenario: Biasing high-precision instrumentation amplifiers and sigma-delta ADCs in portable test equipment. IC Role / Device Role / Timing Role: Primary voltage reference for multi-channel analog input modules with simultaneous sampling. Use Value: 20 ppm/°C tempco and 285 µVPP noise enable 16-bit effective resolution without calibration drift. |
| Battery-Powered Medical Sensor | Automotive ADAS Camera Module |
Use Scenario: Powering analog signal chain in wearable ECG/SpO₂ monitors operating from coin-cell batteries. IC Role / Device Role / Timing Role: Low-power, stable reference for biopotential amplifier gain-setting and ADC conversion. Use Value: 3 µA shutdown mode extends battery life beyond 2 years; 400 mV dropout allows operation down to 3.4 V input. | Use Scenario: Reference source for image sensor analog signal processing and auto-exposure control in surround-view camera ECUs. IC Role / Device Role / Timing Role: 3.0 V reference for CCD/CMOS sensor bias and correlated double sampling circuits. Use Value: AEC-Q100 qualification ensures reliability under automotive thermal shock and EMI stress-critical for ASIL-B systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6033BAUT30+T | 3.0 V, ±0.1% initial accuracy, 25 ppm/°C tempco, 65 µA IQ, SOT-23-5, non-automotive grade | Lacks AEC-Q100 qualification; rated only to +85°C ambient | Select for industrial or consumer designs where automotive qualification is unnecessary and lower cost is prioritized |
| ADR3430ARJZ-R7 | 3.0 V, ±0.1% initial accuracy, 10 ppm/°C tempco (0°C to 70°C), 120 µA IQ, SOT-23-5, non-automotive | Higher tempco over full automotive range; higher quiescent current; no enable pin | Choose when ultra-low tempco in commercial temp range is critical, and shutdown functionality is not required |
Compared with MAX6033BAUT30+T and ADR3430ARJZ-R7, the LM4132BQ1MFR3.0 uniquely combines AEC-Q100 Grade 1 qualification, enable-controlled shutdown, and guaranteed 20 ppm/°C tempco over –40°C to +125°C-making it the only drop-in solution for safety-critical automotive voltage reference needs.
Availability
LM4132BQ1MFR3.0 is available at Aetrix Electronics and suitable for automotive ECU design, industrial data acquisition, and battery-powered medical sensor applications requiring stable component supply and long-term lifecycle support.
Supply support for LM4132BQ1MFR3.0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with broad automotive, industrial, and communications product portfolios.
The LM4132-Q1 product line delivers AEC-Q100-qualified precision voltage references optimized for automotive subsystems requiring high accuracy, low drift, and robust operation across extreme temperature and EMI environments.
FAQ
What is the maximum allowable input voltage for LM4132BQ1MFR3.0?
The absolute maximum input voltage for LM4132BQ1MFR3.0 is 6 V, but the recommended operating maximum is 5.5 V. Operation above 5.5 V risks exceeding absolute maximum ratings and may compromise long-term reliability. The device functions correctly from VIN = VREF + 400 mV (i.e., 3.4 V) up to 5.5 V, with optimal performance maintained across this range. LM4132BQ1MFR3.0 must be used with appropriate input decoupling to prevent transients from exceeding 6 V.
Does LM4132BQ1MFR3.0 require an output capacitor for stability?
No, LM4132BQ1MFR3.0 is internally compensated and stable without an output capacitor. The datasheet explicitly states that COUT is optional and may be added (0.1 µF to 10 µF ceramic) to improve transient response or reduce high-frequency noise. Unlike many references, LM4132BQ1MFR3.0 does not require COUT for loop stability-reducing BOM count and PCB area. LM4132BQ1MFR3.0 remains stable across all load conditions from 0 to 20 mA with or without COUT.
What is the enable pin behavior of LM4132BQ1MFR3.0 during power-up?
The enable pin (Pin 3) of LM4132BQ1MFR3.0 is active-high with hysteresis: VIH ≥65% VIN and VIL ≤35% VIN. During power-up, if EN is left floating or tied to VIN through a weak pull-up, the device powers on after VIN reaches ~2.2 V (assuming 3.3 V nominal VIN). To ensure controlled startup, TI recommends tying EN to VIN via a resistor or driving it actively. LM4132BQ1MFR3.0 enters shutdown only when EN is actively pulled below VIL threshold.
How does LM4132BQ1MFR3.0 achieve 0.1% initial accuracy in plastic SOT-23 packaging?
LM4132BQ1MFR3.0 achieves 0.1% initial accuracy using EEPROM-based post-assembly correction of curvature, temperature coefficient, and offset-compensating for die shift and molding stress effects inherent in plastic SOT-23 packaging. This eliminates reliance on laser trimming, which degrades in plastic packages due to thermal expansion mismatches. LM4132BQ1MFR3.0 performs statistical calibration at final test, storing trim values in on-chip EEPROM to deliver B-grade accuracy without wafer-level trimming.
Is LM4132BQ1MFR3.0 compatible with lead-free reflow profiles?
Yes, LM4132BQ1MFR3.0 is qualified for standard lead-free reflow per JEDEC J-STD-020, with a peak reflow temperature of 260°C (10-second duration). The SOT-23-5 (DBV) package meets RoHS and REACH requirements. Thermal characteristics-including RθJA = 164.1°C/W-are specified under lead-free assembly conditions. LM4132BQ1MFR3.0 has been validated for reliability after exposure to multiple reflow cycles and is suitable for automated SMT production lines using Pb-free solder paste.
LM4132BQ1MFR3.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 285µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.4V ~ 5.5V
- Current - Supply:
- 100µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132BQ1MFR3.0 FAQ
1.How can I place an order for LM4132BQ1MFR3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BQ1MFR3.0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM4132BQ1MFR3.0 reliable?
The price and inventory of LM4132BQ1MFR3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132BQ1MFR3.0 is usually 5 days.
3.What payment methods are accepted for LM4132BQ1MFR3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BQ1MFR3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BQ1MFR3.0?
LM4132BQ1MFR3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BQ1MFR3.0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM4132BQ1MFR3.0?
For technical support, including LM4132BQ1MFR3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BQ1MFR3.0 requirements.
6.How does Aetrix verify that LM4132BQ1MFR3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132BQ1MFR3.0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM4132BQ1MFR3.0 meets industry standards.
7.What is the process for return or replacement of LM4132BQ1MFR3.0?
All LM4132BQ1MFR3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BQ1MFR3.0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM4132BQ1MFR3.0 part is unused and in its original packaging.
Return procedure for LM4132BQ1MFR3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132BQ1MFR3.0 Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AN431AN-ATRG1
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LM4040CYM3-2.5-TR
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LM4040EIM3-2.5/NOPB
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AZ431LBNTR-G1
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LM4040D20IDBZR
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LM4040DIM3X-2.5/NOPB
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AZ431LANTR-G1
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