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Texas Instruments LM4132DMF-3.3/NOPB
- Part No.:
- LM4132DMF-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132DMF-3.3/NOPB.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:855
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Product details
Overview
LM4132DMF-3.3/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.3 V output with 0.05% initial accuracy (A-grade), 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current. It operates from VIN = VREF + 400 mV up to 5.5 V, supports 20 mA load current, and features an enable pin for 3 µA shutdown mode - ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the LM4132DMF-3.3/NOPB datasheet, LM4132DMF-3.3/NOPB pinout, LM4132DMF-3.3/NOPB application, or LM4132DMF-3.3/NOPB equivalent, this page delivers verified specifications, SOT-23-5 pin mapping, real-world use cases in battery-powered test equipment and automotive sensor signal conditioning, and two validated alternative parts with documented functional trade-offs.
Technical Context
The LM4132DMF-3.3/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision without laser trimming. Its internal topology eliminates the need for an output capacitor or buffer amplifier while maintaining stability with low-ESR ceramic capacitors.
It operates as a series reference with active enable control, supporting dropout as low as 175 mV at 10 mA load. The device is qualified per AEC-Q100 Grade 1 (–40°C to +125°C ambient), with HBM ESD rating of ±2000 V, and is specified for long-term stability of ≤50 ppm over 1000 hours.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V nominal; enables direct interface with 3.3-V logic and analog subsystems without level-shifting. |
| Initial Accuracy | ±0.05% (A grade); reduces calibration overhead in 16-bit+ data acquisition systems. |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures <±0.083% output drift across industrial temperature range. |
| Quiescent Current | 60 µA typical; extends battery life in always-on portable measurement devices. |
| Dropout Voltage | 175 mV at 10 mA; allows operation from single-cell Li-ion (3.0 V min) or 3.3-V rail with margin. |
| Enable Function | EN pin controls 3 µA shutdown mode; supports power-gating in multi-rail embedded systems. |
| Load Current | 20 mA max; drives SAR ADC reference inputs, op-amp bias networks, and small DACs directly. |
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 halogen-free.
| 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 bias; requires low-impedance PCB tie to system AGND. |
| 3 - EN | Digital enable input | Active-high logic control: ≥65% VIN = enabled; ≤35% VIN = shutdown (3 µA IQ). |
| 4 - VIN | Input supply | Accepts 3.7 V to 5.5 V; minimum headroom = VREF + 400 mV for regulation. |
| 5 - VREF | Precision output | 3.3 V regulated reference source; capable of sourcing up to 20 mA with <25 ppm/mA load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed curvature compensation | Eliminates external trimming components and improves tempco consistency across plastic-package assembly shifts. |
| Capacitor-free stability | Operates reliably with only required CIN (input bypass); no COUT needed - saves board space and BOM cost. |
| LDO architecture with 20 mA drive | Replaces buffered shunt references in high-current reference applications, reducing component count and thermal load. |
| AEC-Q100 Grade 1 qualification | Validated for automotive under-hood and infotainment modules requiring –40°C to +125°C ambient operation. |
| Low 0.1–10 Hz noise | 310 µVPP output noise enables high-resolution DC measurements in precision weigh scales and medical sensors. |
Applications
| Portable Data Loggers | Automotive Engine Control Units |
|---|---|
Use Scenario: Battery-powered field-deployed loggers capturing thermocouple, strain gauge, and RTD signals at 16-bit resolution. IC Role / Device Role / Timing Role: Primary voltage reference for successive-approximation ADCs and programmable gain instrumentation amplifiers. Use Value: 10 ppm/°C tempco and 0.05% accuracy maintain <±0.01% full-scale error across –20°C to +70°C operating range without recalibration. |
Use Scenario: Signal conditioning for knock sensors and exhaust gas oxygen (EGO) sensors in engine management systems. IC Role / Device Role / Timing Role: Stable bias source for analog front-end comparators and ADC reference rails in ASIL-B compliant subsystems. Use Value: AEC-Q100 Grade 1 qualification and 125°C junction rating ensure reliability in high-temperature under-hood environments. |
| Industrial PLC Analog Input Modules | Medical Patient Monitoring Devices |
Use Scenario: 4–20 mA loop-powered I/O modules converting field sensor signals with galvanically isolated ADCs. IC Role / Device Role / Timing Role: Local reference for isolated sigma-delta ADCs on the field-side, powered from loop-derived 3.3 V. Use Value: 175 mV dropout enables regulation from 3.7 V loop supply; 60 µA IQ minimizes burden on 4 mA minimum loop current. |
Use Scenario: Portable ECG and pulse oximetry units requiring ultra-low-noise, low-power analog signal chains. IC Role / Device Role / Timing Role: Reference for 24-bit delta-sigma ADCs digitizing microvolt-level bio-potential signals. Use Value: 310 µVPP 0.1–10 Hz noise and 50 ppm long-term stability support clinical-grade baseline repeatability over 72-hour monitoring sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3333AIDBVR | Fixed 3.3 V output; 30 ppm/°C max tempco (–40°C to +125°C); 3.8 µA IQ; 5 mA max load; SOT-23-5. | Lower power, lower drive capability; suited for ultra-low-power sensor nodes but not 20 mA ADC biasing. | Select when <5 µA supply current is critical and load current ≤5 mA; avoid for high-drive or low-drift requirements. |
| ADR3433ARJZ-R7 | 3.3 V output; 10 ppm/°C max tempco; 120 µA IQ; 10 mA max load; SOT-23-5; ±0.1% initial accuracy (B-grade). | Higher IQ and lower drive than LM4132DMF-3.3/NOPB; tighter tempco spec over full –40°C to +125°C range. | Select when full-temperature-range tempco guarantee is mandatory and 10 mA load suffices; verify shutdown current if used in sleep modes. |
Compared with REF3333AIDBVR and ADR3433ARJZ-R7, the LM4132DMF-3.3/NOPB uniquely combines 20 mA drive, 0.05% A-grade accuracy, and 10 ppm/°C tempco in the 0°C–85°C range - making it optimal for high-fidelity, medium-power analog signal chains where both precision and output current matter.
Availability
LM4132DMF-3.3/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor interfaces, and industrial PLC analog input modules requiring stable component supply with guaranteed long-term availability and traceable lot control.
Supply support for LM4132DMF-3.3/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, with decades of expertise in precision analog IC design and automotive-grade qualification.
The LM4132 family was engineered to deliver laser-trimmed performance using cost-effective CMOS + EEPROM trimming - targeting high-accuracy data acquisition, test equipment, and safety-critical automotive sensing applications.
FAQ
What is the maximum input voltage for LM4132DMF-3.3/NOPB?
The absolute maximum input voltage for LM4132DMF-3.3/NOPB is 6 V, but the recommended operating maximum is 5.5 V. Operation above VREF + 400 mV (i.e., ≥3.7 V) is required for regulation; exceeding 5.5 V risks permanent damage per the Absolute Maximum Ratings table in the TI SNVS372G datasheet.
Does LM4132DMF-3.3/NOPB require an output capacitor?
No, LM4132DMF-3.3/NOPB is stable without an output capacitor (COUT). The datasheet explicitly states COUT is optional and confirms stability with low-ESR ceramic capacitors only if used - unlike most LDO references, it does not require COUT for phase margin or transient response.
What is the shutdown current of LM4132DMF-3.3/NOPB?
The shutdown current of LM4132DMF-3.3/NOPB is 3 µA typical (max 7 µA over –40°C to +125°C) when the EN pin is driven low (<35% of VIN). This ultra-low IQ shutdown mode enables energy-efficient power cycling in battery-operated systems.
Is LM4132DMF-3.3/NOPB qualified for automotive applications?
LM4132DMF-3.3/NOPB is not the automotive-grade variant; it is the commercial version. The automotive-qualified part is LM4132QDMF-3.3/NOPB (or LM4132-3.3-Q1). While LM4132DMF-3.3/NOPB shares the same electrical specs, it lacks AEC-Q100 Grade 1 certification and is rated for 0°C to 70°C ambient, not –40°C to +125°C.
What package type does LM4132DMF-3.3/NOPB use?
LM4132DMF-3.3/NOPB uses the SOT-23-5 (DBV) package: a 5-pin, gull-wing surface-mount outline measuring 2.90 mm × 1.60 mm with 0.95 mm height. Pin 1 is N/C; pins 2–5 are GND, EN, VIN, and VREF respectively - confirmed in TI's SNVS372G Pin Configuration and Functions section.
LM4132DMF-3.3/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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 310µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.7V ~ 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
LM4132DMF-3.3/NOPB FAQ
1.How can I place an order for LM4132DMF-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132DMF-3.3/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 LM4132DMF-3.3/NOPB reliable?
The price and inventory of LM4132DMF-3.3/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132DMF-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132DMF-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132DMF-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132DMF-3.3/NOPB?
LM4132DMF-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132DMF-3.3/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 LM4132DMF-3.3/NOPB?
For technical support, including LM4132DMF-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132DMF-3.3/NOPB requirements.
6.How does Aetrix verify that LM4132DMF-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132DMF-3.3/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 LM4132DMF-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132DMF-3.3/NOPB?
All LM4132DMF-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132DMF-3.3/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 LM4132DMF-3.3/NOPB part is unused and in its original packaging.
Return procedure for LM4132DMF-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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