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Texas Instruments LM4132CQ1MFR3.0
- Part No.:
- LM4132CQ1MFR3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CQ1MFR3.0.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,281
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Product details
Overview
LM4132CQ1MFR3.0 from Texas Instruments is a precision low-dropout (LDO) voltage reference IC in SOT-23-5 package, delivering a stable 3.0 V output with ±0.2% initial accuracy and 20 ppm/°C temperature coefficient over –40°C to +125°C. It features an enable pin for 3 µA shutdown mode, supports up to 25 mA load current, and operates from VIN = VREF + 400 mV to 5.5 V - ideal for automotive sensor signal conditioning and battery-powered data acquisition.
For engineers reviewing the LM4132CQ1MFR3.0 datasheet, LM4132CQ1MFR3.0 pinout, LM4132CQ1MFR3.0 application, or LM4132CQ1MFR3.0 equivalent, key selection criteria include automotive-grade AEC-Q100 qualification (Grade 1), dropout voltage ≤400 mV at 10 mA, line regulation of 70 ppm/V, and compatibility with low-ESR ceramic capacitors without requiring output buffering.
Technical Context
The LM4132CQ1MFR3.0 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 circuitry eliminates need for external output capacitors while maintaining stability across temperature and load variations.
It integrates an active enable control path with VIH = 65% VIN and VIL = 35% VIN thresholds, supporting seamless power sequencing in automotive ECUs and industrial PLCs. The device's 60 µA quiescent current and 3 µA shutdown current are specified across full –40°C to +125°C junction range, ensuring consistent performance in under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.2% (C-grade, 25°C); enables accurate ADC/DAC biasing in 3.3 V systems |
| Tempco | 20 ppm/°C (–40°C to +125°C); ensures <±0.5 mV drift over full automotive temperature range |
| Dropout Voltage | ≤400 mV at 10 mA load; allows operation from 3.4 V supply in low-voltage battery systems |
| Supply Current | 60 µA typical (25°C); supports >10-year battery life in always-on monitoring nodes |
| Shutdown Current | 3 µA max (EN = 0 V); enables deep-sleep modes in portable test equipment |
| Load Regulation | 25 ppm/mA (0–25 mA); maintains <±75 µV output shift across full load range |
| Line Regulation | 70 ppm/V (VREF + 0.4 V to 5.5 V); rejects input ripple in noisy 5 V rail applications |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect | Must be left floating; no internal connection or function |
| 2 - GND | Ground reference | Primary return path for reference and enable circuitry; requires low-impedance PCB connection |
| 3 - EN | Enable control input | Active-high logic input; drives internal pass element; VIH ≥ 65% VIN, VIL ≤ 35% VIN |
| 4 - VIN | Input supply | Unregulated input; must exceed VREF by ≥400 mV; accepts 3.4 V to 5.5 V |
| 5 - VREF | Precision output | Stable 3.0 V reference source; capable of sourcing up to 25 mA into load |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for automotive ambient operation from –40°C to +125°C with HBM ESD ≥±2 kV |
| EEPROM-trimmed band-gap | Eliminates assembly-induced voltage shift; achieves 0.2% accuracy without laser trimming |
| Capacitor-free stability | Stable with 0.1 µF ceramic CIN only; no COUT required - reduces BOM count and board space |
| 25 mA output drive | Directly powers SAR ADC references, op-amp bias networks, or small DACs without buffer stages |
| Low-noise 0.1–10 Hz output | 285 µVPP typical noise; suitable for 16-bit+ precision measurement front-ends |
Applications
| Automotive Sensor Signal Conditioning | Portable Data Acquisition |
|---|---|
Use Scenario: High-accuracy analog front-end for engine knock sensors and exhaust gas oxygen (EGO) sensors in Tier-1 ECU modules. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for ratiometric ADC conversion of sensor outputs. Use Value: Enables <±0.1% total measurement error over lifetime, meeting ASAM MCD-2 MC calibration requirements. | Use Scenario: Battery-powered handheld multimeter with 5½-digit resolution and auto-ranging capability. IC Role / Device Role / Timing Role: Supplies precision reference to dual-slope integrator and SAR ADC subsystems. Use Value: Delivers 25 mA peak current during auto-ranging without output sag, preserving measurement repeatability. |
| Industrial Process Controller I/O Module | Medical Patient Monitoring Front-End |
Use Scenario: 4–20 mA loop-powered transmitter module for pressure and flow transmitters in hazardous area installations. IC Role / Device Role / Timing Role: Generates isolated 3.0 V reference for current-loop DAC and diagnostic ADC. Use Value: Maintains <±20 ppm/°C drift across wide ambient swings, satisfying IEC 61000-6-2 immunity compliance. | Use Scenario: Portable ECG monitor with 24-bit delta-sigma ADC and real-time ST-segment analysis. IC Role / Device Role / Timing Role: Supplies ultra-low-noise 3.0 V reference to ADC reference input and analog front-end biasing. Use Value: 285 µVPP 0.1–10 Hz noise ensures <1 µV RMS baseline noise floor for sub-microvolt cardiac signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6126AUT30#TG16 | Fixed 3.0 V output, 0.04% initial accuracy, 3 ppm/°C tempco, 0.9 µA shutdown current, SOT-23-6 | Higher precision and lower drift but limited to 10 mA load; no AEC-Q100 qualification | Preferred for lab-grade instrumentation where ultra-low drift outweighs automotive compliance needs |
| ADR3430ARJZ-R7 | 3.0 V output, 0.1% initial accuracy, 10 ppm/°C tempco, 6 µA shutdown, SOT-23-5, AEC-Q100 Grade 2 (–40°C to +105°C) | Lower tempco than LM4132CQ1MFR3.0 but rated only to +105°C ambient; same 20 mA load capability | Best for non-under-hood automotive applications (e.g., infotainment) where extended temperature range is not required |
Compared with MAX6126AUT30#TG16 and ADR3430ARJZ-R7, the LM4132CQ1MFR3.0 uniquely balances AEC-Q100 Grade 1 qualification, 25 mA drive strength, and capacitor-free stability - making it the only option qualified for under-hood use cases demanding both high current and wide temperature operation.
Availability
LM4132CQ1MFR3.0 is available at Aetrix Electronics and suitable for automotive sensor modules, portable test equipment, industrial I/O systems, and medical diagnostics requiring stable component supply with guaranteed long-term continuity.
Supply support for LM4132CQ1MFR3.0 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, designing and manufacturing analog and embedded processing chips for industrial, automotive, and consumer markets.
The LM4132 family was developed to deliver laser-trimmed reference performance using cost-effective CMOS EEPROM trimming - specifically targeting automotive and industrial applications needing high accuracy, wide temperature operation, and robust supply rejection.
FAQ
What is the maximum load current supported by the LM4132CQ1MFR3.0?
The LM4132CQ1MFR3.0 supports up to 25 mA of output current, as confirmed in Section 6.3 (Recommended Operating Conditions) and Table 6.10 (Electrical Characteristics LM4132-3.3-Q1) of the official TI datasheet SNVS372G. This rating applies across the full –40°C to +125°C operating temperature range and exceeds standard 20 mA capability of non-Q1 variants, enabling direct drive of higher-current ADC references and analog circuitry without external buffers.
Is the LM4132CQ1MFR3.0 qualified for automotive applications?
Yes, the LM4132CQ1MFR3.0 is AEC-Q100 qualified for automotive applications, specifically meeting Grade 1 requirements with an ambient operating temperature range of –40°C to +125°C and HBM ESD classification Level 2 (±2 kV). This qualification is explicitly stated in the "Features" section and "Device Information" table of the TI datasheet SNVS372G, confirming its suitability for under-hood and safety-critical vehicle subsystems.
Does the LM4132CQ1MFR3.0 require an output capacitor for stability?
No, the LM4132CQ1MFR3.0 does not require an output capacitor for stability. As stated in the "Description" section and "Simplified Schematic" of the TI datasheet SNVS372G, only an input capacitor (CIN) is required, while the output capacitor (COUT) is optional. This capacitor-free operation is enabled by its internal compensation and allows simplified layout in space-constrained automotive and portable designs.
What is the dropout voltage specification for the LM4132CQ1MFR3.0?
The dropout voltage for the LM4132CQ1MFR3.0 is specified as ≤400 mV at 10 mA load current over the full –40°C to +125°C temperature range, per Table 6.10 in the TI datasheet SNVS372G. At 25°C, typical dropout is 175 mV. This low dropout enables reliable operation from supplies as low as 3.4 V, critical for battery-powered and low-voltage automotive systems.
How does the enable pin function on the LM4132CQ1MFR3.0?
The enable pin (Pin 3) on the LM4132CQ1MFR3.0 is an active-high digital control input. When pulled high to ≥65% of VIN, the device operates normally; when pulled low to ≤35% of VIN, it enters shutdown mode drawing ≤7 µA. This behavior is defined in Tables 6.5–6.11 and Figure 3 ("Enable Threshold Voltage and Hysteresis") of the TI datasheet SNVS372G, supporting precise power sequencing in multi-rail automotive systems.
LM4132CQ1MFR3.0 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:
- ±0.2%
- 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
LM4132CQ1MFR3.0 FAQ
1.How can I place an order for LM4132CQ1MFR3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CQ1MFR3.0 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 LM4132CQ1MFR3.0 reliable?
The price and inventory of LM4132CQ1MFR3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132CQ1MFR3.0 is usually 5 days.
3.What payment methods are accepted for LM4132CQ1MFR3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CQ1MFR3.0 transactions.
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4.How is shipping managed for LM4132CQ1MFR3.0?
LM4132CQ1MFR3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CQ1MFR3.0 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 LM4132CQ1MFR3.0?
For technical support, including LM4132CQ1MFR3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CQ1MFR3.0 requirements.
6.How does Aetrix verify that LM4132CQ1MFR3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132CQ1MFR3.0 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 LM4132CQ1MFR3.0 meets industry standards.
7.What is the process for return or replacement of LM4132CQ1MFR3.0?
All LM4132CQ1MFR3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CQ1MFR3.0, 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 LM4132CQ1MFR3.0 part is unused and in its original packaging.
Return procedure for LM4132CQ1MFR3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132CQ1MFR3.0 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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