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Texas Instruments LM4132CMFX-3.0/NOPB
- Part No.:
- LM4132CMFX-3.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CMFX-3.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,054
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Product details
Overview
LM4132CMFX-3.0/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC 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 portable instrumentation.
For engineers reviewing the LM4132CMFX-3.0/NOPB datasheet, LM4132CMFX-3.0/NOPB pinout, LM4132CMFX-3.0/NOPB application, or LM4132CMFX-3.0/NOPB equivalent, key selection criteria include dropout voltage (175 mV at 10 mA), line regulation (70 ppm/V), load regulation (25 ppm/mA), thermal hysteresis (75 ppm), and SOT-23-5 package compatibility with low-ESR ceramic capacitors.
Technical Context
The LM4132CMFX-3.0/NOPB uses EEPROM-trimmed CMOS bandgap architecture to achieve laser-trimmed bipolar-level precision without laser trimming. Its curvature, tempco, and accuracy are corrected at package level to mitigate assembly-induced shifts - enabling consistent 3.0 V output across temperature and life cycle.
This device operates as a series reference with VIN range from VREF + 400 mV (3.4 V) to 5.5 V, eliminating need for output buffer or mandatory output capacitor. The EN pin controls active/shutdown states with VIH = 65% VIN and VIL = 35% VIN thresholds, supporting seamless power sequencing in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.05% (A-grade initial accuracy - ensures ≤1.5 mV absolute error at 25°C) |
| Tempco | 10 ppm/°C (0°C to 85°C) - enables ≤0.25 mV drift over industrial temperature range |
| Dropout Voltage | 175 mV at 10 mA load - allows operation from 3.4 V input, critical for single-cell Li-ion or 3.3 V rail derivation |
| Quiescent Current | 60 µA - minimizes standby power in always-on sensor nodes and portable meters |
| Shutdown Current | 3 µA - reduces system idle power by >95% vs active mode |
| Load Regulation | 25 ppm/mA - maintains ≤75 µV change per mA load shift, essential for precision DAC reference stability |
| Noise (0.1–10 Hz) | 285 µVPP - low enough for 16-bit+ data acquisition without external filtering |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads. RoHS-compliant, lead-free, and qualified per AEC-Q100 Grade 1 (–40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect terminal | Must remain unconnected; floating - no internal connection or function |
| 2 - GND | Analog ground reference | Primary return path for reference output and internal circuitry; requires low-impedance PCB tie to system AGND |
| 3 - EN | Enable control input | Active-high logic input; drives device into 3 µA shutdown when pulled ≤35% VIN |
| 4 - VIN | Input supply | Accepts 3.4 V to 5.5 V; must be bypassed with ≥1 µF ceramic capacitor near pin |
| 5 - VREF | Precision output | 3.0 V regulated reference source; capable of sourcing up to 20 mA with <0.5% deviation |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-based curvature correction | Compensates for second-order temperature nonlinearity at package level - eliminates need for external calibration |
| Low-ESR capacitor stability | Stable with standard 0.1–1 µF X7R/X5R ceramics - avoids costly tantalum or special low-ESR types |
| Grade-A precision | 0.05% initial accuracy + 10 ppm/°C tempco - meets requirements for Class I metrology and medical diagnostics |
| High output drive | 20 mA sink/source capability - directly drives SAR ADC references, op-amp bias networks, or small DACs without buffer |
| AEC-Q100 qualification | Grade 1 automotive qualification - validated for under-hood and ADAS sensor modules requiring long-term reliability |
Applications
| Portable Multimeter Reference | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Handheld digital multimeter requiring stable 3.0 V reference for 5½-digit ADC conversion across –10°C to 50°C ambient. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope or sigma-delta ADC front-end, setting full-scale measurement range. Use Value: 10 ppm/°C tempco and 75 ppm thermal hysteresis ensure ≤0.01% reading drift after temperature cycling - meeting IEC 61010-1 accuracy class. | Use Scenario: Pressure sensor module in engine control unit, operating from 3.3 V rail with intermittent sleep mode. IC Role / Device Role / Timing Role: Precision bias source for bridge amplifier and ADC reference, enabled only during active measurement windows. Use Value: 3 µA shutdown current extends ECU sleep-mode battery life; 175 mV dropout enables reliable operation even during cold-crank voltage sag to 3.4 V. |
| Industrial Data Logger | Medical Patient Monitor Analog Front-End |
Use Scenario: Battery-powered environmental logger sampling thermocouples and RTDs every 10 seconds over 1-year deployment. IC Role / Device Role / Timing Role: Master reference for multiplexed 24-bit delta-sigma ADC, shared across multiple sensor channels. Use Value: 285 µVPP low-frequency noise prevents quantization errors in sub-µV thermocouple measurements; 50 ppm long-term stability ensures calibration validity over field lifetime. | Use Scenario: Portable ECG monitor requiring FDA-grade signal fidelity with 16-bit resolution and <1 µV RMS noise floor. IC Role / Device Role / Timing Role: Low-noise reference for instrumentation amplifier gain-setting and ADC reference voltage. Use Value: 60 µA quiescent current enables >72-hour runtime on coin cell; absence of required output capacitor simplifies layout and improves EMI immunity in sensitive analog sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | Fixed 3.0 V, 50 ppm/°C max tempco (–40°C to 125°C), 50 µA IQ, no enable pin | Lacks shutdown control; lower drive (25 mA), higher noise (35 µVPP typ) | Choose when ultra-low IQ dominates and enable functionality is unnecessary |
| ADR3430ARJZ-R7 | 3.0 V, 10 ppm/°C max tempco, 120 µA IQ, no enable, 10 mA max load | Lower output drive and higher quiescent current; not AEC-Q100 qualified | Prefer for space-constrained PCBs where SOT-23-5 footprint matches but automotive qualification is not required |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the LM4132CMFX-3.0/NOPB uniquely combines AEC-Q100 Grade 1 qualification, integrated enable control, 20 mA drive, and 10 ppm/°C tempco in a single SOT-23-5 package - making it optimal for automotive and portable precision systems demanding both performance and power-state flexibility.
Availability
LM4132CMFX-3.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor modules, and industrial data loggers requiring stable component supply with guaranteed long-term availability and traceable lot-level documentation.
Supply support for LM4132CMFX-3.0/NOPB 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 focused on analog and embedded processing technologies, serving industrial, automotive, and communications markets with high-reliability components.
The LM4132 family was designed specifically to deliver laser-trimmed precision in cost-effective CMOS packaging - targeting high-accuracy data acquisition, battery-powered test equipment, and safety-critical automotive subsystems.
FAQ
What is the maximum input voltage for the LM4132CMFX-3.0/NOPB?
The LM4132CMFX-3.0/NOPB supports a maximum input voltage of 5.5 V, as specified in the Recommended Operating Conditions table. Operation above this voltage risks permanent damage. The minimum input is VREF + 400 mV (3.4 V), ensuring proper regulation across its full 20 mA load range. This 3.4 V to 5.5 V window makes the LM4132CMFX-3.0/NOPB compatible with common 3.3 V and 5 V system rails.
Does the LM4132CMFX-3.0/NOPB require an output capacitor?
No, the LM4132CMFX-3.0/NOPB is stable without an output capacitor, though a 0.1 µF ceramic capacitor may be added to further reduce high-frequency noise. The datasheet explicitly states COUT is optional, distinguishing it from many legacy references that mandate output capacitance for stability. This simplifies layout and improves reliability in space-constrained designs.
What does the 'C' grade signify in LM4132CMFX-3.0/NOPB?
The 'C' in LM4132CMFX-3.0/NOPB denotes the accuracy grade: C-grade devices have ±0.2% initial output voltage accuracy and 20 ppm/°C max temperature coefficient over –40°C to +125°C. This grade balances cost and performance for industrial applications where A-grade (±0.05%) is unnecessary but tighter tolerance than D/E grades is required.
Is the LM4132CMFX-3.0/NOPB qualified for automotive use?
Yes, the LM4132CMFX-3.0/NOPB is AEC-Q100 qualified for Grade 1 (–40°C to +125°C ambient), with HBM ESD rating of ±2000 V. It meets automotive reliability standards for under-hood and cabin modules, including thermal cycling, humidity testing, and long-term stability validation - confirmed in TI's official LM4132-Q1 product documentation.
How does the enable pin function on the LM4132CMFX-3.0/NOPB?
The EN pin on the LM4132CMFX-3.0/NOPB is an active-high logic input. When pulled to ≥65% of VIN, the device operates normally; when ≤35% of VIN, it enters 3 µA shutdown mode. No external pull-up/down is required, and the threshold scales with input voltage - enabling robust operation across varying supply conditions without level-shifting circuitry.
LM4132CMFX-3.0/NOPB 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132CMFX-3.0/NOPB FAQ
1.How can I place an order for LM4132CMFX-3.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CMFX-3.0/NOPB 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 LM4132CMFX-3.0/NOPB reliable?
The price and inventory of LM4132CMFX-3.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132CMFX-3.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132CMFX-3.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CMFX-3.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132CMFX-3.0/NOPB?
LM4132CMFX-3.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CMFX-3.0/NOPB 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 LM4132CMFX-3.0/NOPB?
For technical support, including LM4132CMFX-3.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CMFX-3.0/NOPB requirements.
6.How does Aetrix verify that LM4132CMFX-3.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132CMFX-3.0/NOPB 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 LM4132CMFX-3.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132CMFX-3.0/NOPB?
All LM4132CMFX-3.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CMFX-3.0/NOPB, 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 LM4132CMFX-3.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132CMFX-3.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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