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Texas Instruments LM4132AQ1MFR3.0
- Part No.:
- LM4132AQ1MFR3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132AQ1MFR3.0.pdf
- Description:
- IC VREF SERIES 0.05% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,992
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Product details
Overview
LM4132AQ1MFR3.0 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 ±0.05% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°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-accuracy ADC/DAC biasing in automotive sensor modules.
For engineers reviewing the LM4132AQ1MFR3.0 datasheet, LM4132AQ1MFR3.0 pinout, LM4132AQ1MFR3.0 application, or LM4132AQ1MFR3.0 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (–40°C to +125°C), dropout voltage of 175 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 LM4132AQ1MFR3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed reference performance at lower cost. Its internal LDO topology eliminates need for external output capacitance while maintaining stability across temperature and load variations.
It operates with input voltage as low as VREF + 400 mV (i.e., ≥3.4 V) up to 5.5 V, supports enable-controlled power gating, and delivers 3.0 V output with thermal hysteresis of 75 ppm and long-term stability of 50 ppm over 1000 hours - critical for automotive calibration-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.05% (A-grade initial accuracy - enables 16-bit ADC full-scale error < 0.1 LSB) |
| Tempco | 10 ppm/°C (0°C to 85°C) - ensures <±0.25 mV drift over industrial ambient range |
| Dropout Voltage | 175 mV at 10 mA - allows operation from 3.4 V supply, supporting low-voltage battery-backed systems |
| Quiescent Current | 60 µA - enables multi-year operation in always-on automotive monitoring circuits |
| Shutdown Current | 3 µA (EN = 0 V) - reduces standby power in sleep-mode ECUs and telematics modules |
| Load Regulation | 25 ppm/mA - maintains output stability under dynamic sensor excitation loads |
| Line Regulation | 70 ppm/V - rejects ripple and variation in noisy automotive 5 V rails |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected. Pin 1 is N/C (no connect); pins are arranged top-view with standard SOT-23 orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (N/C) | No-connect terminal | Must remain floating - no PCB trace or solder connection permitted |
| 2 (GND) | Analog ground reference | Primary return path for reference output and internal band-gap circuitry |
| 3 (EN) | Digital enable input | Active-high logic control: VIH ≥65% VIN, VIL ≤35% VIN - enables system-level power sequencing |
| 4 (VIN) | Input supply rail | Accepts 3.4 V to 5.5 V; supplies internal regulator and reference core |
| 5 (VREF) | Precision output terminal | Low-noise 3.0 V reference source - connects directly to ADC REF+ or DAC VREF pins |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - suitable for engine bay and transmission control units |
| EEPROM-trimmed curvature compensation | Eliminates need for external trimming components and improves tempco consistency across production lots |
| Enable-controlled shutdown | Reduces supply current to 3 µA - enables duty-cycled sensing in battery-powered ADAS subsystems |
| Stable with 0.1 µF ceramic capacitor | Removes requirement for large tantalum or electrolytic output caps - saves board space and cost |
| 20 mA output drive capability | Directly powers multiple precision op-amps or SAR ADC references without external buffers |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Data Acquisition Module |
|---|---|
Use Scenario: High-precision analog front-end for wideband oxygen sensor signal conditioning in closed-loop fuel control. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for 16-bit ADC sampling of lambda sensor output. Use Value: ±0.05% accuracy and 10 ppm/°C tempco ensure <±1.5 mV total error over –40°C to 125°C, meeting OBD-II calibration requirements. |
Use Scenario: Multi-channel thermocouple measurement system with cold-junction compensation. IC Role / Device Role / Timing Role: Supplies reference voltage to instrumentation amplifier gain stage and ADC reference input. Use Value: 25 ppm/mA load regulation prevents gain error during simultaneous channel scanning; 70 ppm/V line regulation rejects switching PSU noise. |
| Portable Medical Vital Sign Monitor | Battery-Powered IoT Sensor Node |
Use Scenario: ECG front-end with ultra-low-noise amplification and 24-bit sigma-delta ADC conversion. IC Role / Device Role / Timing Role: Delivers clean 3.0 V reference for ADC and analog signal chain biasing. Use Value: 240 µVPP (0.1–10 Hz) output noise minimizes baseline wander; 60 µA IQ extends single-CR2032 battery life beyond 2 years. |
Use Scenario: Wireless environmental sensor node using low-power MCU and integrated ADC. IC Role / Device Role / Timing Role: Powers precision voltage divider for battery voltage monitoring and ADC reference. Use Value: 3 µA shutdown current enables microamp-level deep-sleep modes; SOT-23-5 footprint fits compact 2-layer PCB designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6126AASA30+ | 3.0 V, ±0.02% initial accuracy, 3 ppm/°C tempco, SO-8 package, no enable pin | Higher accuracy but larger footprint and no shutdown control - less suitable for space-constrained automotive modules | Choose when ultimate initial accuracy outweighs board area and power-gating needs |
| ADR3430ARJZ-R7 | 3.0 V, ±0.1% initial accuracy, 10 ppm/°C tempco, SOT-23-5, no enable pin, 45 µA IQ | Lacks enable functionality and has looser initial tolerance - requires tighter system calibration | Choose for cost-sensitive industrial applications where shutdown is unnecessary and AEC-Q100 not required |
Compared with MAX6126AASA30+ and ADR3430ARJZ-R7, the LM4132AQ1MFR3.0 uniquely combines AEC-Q100 Grade 1 qualification, enable-controlled shutdown, and SOT-23-5 packaging - making it the only option qualified for automotive under-hood use with dynamic power management.
Availability
LM4132AQ1MFR3.0 is available at Aetrix Electronics and suitable for automotive ECU design, industrial data acquisition systems, and portable medical instrumentation requiring stable component supply with guaranteed long-term availability and AEC-Q100 compliance.
Supply support for LM4132AQ1MFR3.0 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 leader specializing in analog and embedded processing technologies, with decades of experience in precision analog ICs and automotive electronics.
The LM4132 family was designed specifically for high-accuracy, low-power reference applications in automotive and industrial environments - emphasizing AEC-Q100 qualification, EEPROM-based trimming, and robust LDO architecture.
FAQ
What is the operating temperature range for the LM4132AQ1MFR3.0?
The LM4132AQ1MFR3.0 is qualified per AEC-Q100 Grade 1, with guaranteed operation from –40°C to +125°C ambient temperature. This rating applies to the full electrical specification including initial accuracy, tempco, and load regulation - validated across temperature cycling and thermal hysteresis testing per TI's automotive qualification protocol.
Does the LM4132AQ1MFR3.0 require an output capacitor for stability?
No, the LM4132AQ1MFR3.0 is internally compensated and stable with no output capacitor required. It remains stable with low-ESR ceramic capacitors (e.g., 0.1 µF) if added for additional noise filtering, but COUT is optional - unlike many competing references that mandate minimum output capacitance for phase margin.
What is the minimum input voltage needed for the LM4132AQ1MFR3.0 to maintain regulation?
The LM4132AQ1MFR3.0 requires VIN ≥ VREF + 400 mV, i.e., ≥3.4 V, to maintain regulation at full load. At 10 mA load, its dropout voltage is specified at 175 mV - meaning it sustains 3.0 V output with only 3.175 V input under nominal conditions, enabling efficient use of marginal battery voltages.
How does the enable pin function on the LM4132AQ1MFR3.0?
The EN pin on the LM4132AQ1MFR3.0 is an active-high digital control: VIH ≥65% of VIN enables normal operation; VIL ≤35% of VIN places the device in 3 µA shutdown mode. The pin has no internal pull-up/down and must be driven externally - allowing precise system-level power sequencing in automotive microcontroller domains.
Is the LM4132AQ1MFR3.0 pin-compatible with other members of the LM4132 family?
Yes, all LM4132 variants - including LM4132AQ1MFR3.0, LM4132AMF3.0, and LM4132BQ1MF2.5 - share identical SOT-23-5 (DBV) pinout and footprint. Pin functions (N/C, GND, EN, VIN, VREF) are consistent across grades and voltage options, enabling drop-in replacement during design iteration or qualification upgrades.
LM4132AQ1MFR3.0 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:
- ±0.05%
- 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
LM4132AQ1MFR3.0 FAQ
1.How can I place an order for LM4132AQ1MFR3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132AQ1MFR3.0 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 LM4132AQ1MFR3.0 reliable?
The price and inventory of LM4132AQ1MFR3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132AQ1MFR3.0 is usually 5 days.
3.What payment methods are accepted for LM4132AQ1MFR3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132AQ1MFR3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132AQ1MFR3.0?
LM4132AQ1MFR3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132AQ1MFR3.0 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 LM4132AQ1MFR3.0?
For technical support, including LM4132AQ1MFR3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132AQ1MFR3.0 requirements.
6.How does Aetrix verify that LM4132AQ1MFR3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132AQ1MFR3.0 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 LM4132AQ1MFR3.0 meets industry standards.
7.What is the process for return or replacement of LM4132AQ1MFR3.0?
All LM4132AQ1MFR3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132AQ1MFR3.0, 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 LM4132AQ1MFR3.0 part is unused and in its original packaging.
Return procedure for LM4132AQ1MFR3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132AQ1MFR3.0 Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AN431AN-ATRG1
Diodes Incorporated
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LM4040CYM3-2.5-TR
Microchip Technology
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LM4040CYM3-4.1-TR
Microchip Technology
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LM4040EIM3-2.5/NOPB
Texas Instruments
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AZ431LBNTR-G1
Diodes Incorporated
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LM4040D20IDBZR
Texas Instruments
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LM4041DIM3-ADJ/NOPB
Texas Instruments
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LM4040DIM3X-2.5/NOPB
Texas Instruments
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LM4040DIM3-2.5/NOPB
Texas Instruments
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AZ431LANTR-G1
Diodes Incorporated
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