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Texas Instruments LM4132BMFX-3.0/NOPB
- Part No.:
- LM4132BMFX-3.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BMFX-3.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,643
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Product details
Overview
LM4132BMFX-3.0/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.0 V output with 0.1% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current - used in high-resolution ADC/DAC biasing, portable instrumentation, and automotive sensor signal conditioning.
For engineers reviewing the LM4132BMFX-3.0/NOPB datasheet, LM4132BMFX-3.0/NOPB pinout, LM4132BMFX-3.0/NOPB application, or LM4132BMFX-3.0/NOPB equivalent, key selection criteria include dropout voltage ≤400 mV at 10 mA load, enable-controlled 3 µA shutdown mode, stability with ceramic capacitors, and SOT-23-5 packaging for space-constrained PCBs.
Technical Context
The LM4132BMFX-3.0/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed reference performance without laser trimming. It operates as a series reference, eliminating idle current waste inherent in shunt topologies.
Its enable pin (EN) controls transition between active operation (60 µA IQ) and shutdown (3 µA IQ), while its 20 mA output drive capability supports direct buffering of SAR ADC references and low-power microcontroller VREF inputs without external op-amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.1% (B-grade initial accuracy at 25°C) |
| Temperature Coefficient | 10 ppm/°C (0°C to 85°C), 20 ppm/°C (–40°C to 125°C) |
| Dropout Voltage | 175 mV (typical at 10 mA load), max 400 mV over full temperature range |
| Supply Current | 60 µA (active), 3 µA (shutdown via EN pin) |
| Load Regulation | 25 ppm/mA (0–20 mA), enabling stable reference under dynamic load |
| Line Regulation | 70 ppm/V (VIN = VREF + 400 mV to 5.5 V) |
| Output Noise (0.1–10 Hz) | 285 µVPP - suitable for 16-bit+ data acquisition systems |
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 | Internally unconnected; must be left floating - no PCB trace or pull-up/down |
| 2 - GND | Ground reference | Primary return path for reference output and internal circuitry; requires low-impedance connection to system ground plane |
| 3 - EN | Enable control input | Active-high logic input; ≥65% VIN = high (active), ≤35% VIN = low (shutdown); drives 3 µA IQ state |
| 4 - VIN | Input supply | Accepts 3.4 V to 5.5 V (VREF + 400 mV min); powers internal regulator and output stage |
| 5 - VREF | Precision output | 3.0 V regulated reference source; capable of sourcing up to 20 mA into resistive or capacitive loads |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed CMOS band-gap | Eliminates post-assembly calibration drift; achieves 0.1% accuracy without laser trimming |
| Low-dropout operation | Enables use with single-cell Li-ion (3.0–4.2 V) or 3.3 V rails without LDO pre-regulation |
| Enable-controlled shutdown | Reduces system standby power by >95% - critical for battery-powered data loggers and IoT sensors |
| Ceramic capacitor stability | Operates reliably with 1 µF X7R/X5R ceramics on VIN and optional COUT; no ESR requirements |
| AEC-Q100 Grade 1 qualification | Validated for automotive cabin and engine bay applications including ADAS sensor modules and motor control feedback |
Applications
| Portable Precision Data Acquisition | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring 16-bit ADC samples at 10 kSPS. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for SAR ADC and analog front-end gain stages. Use Value: 10 ppm/°C tempco and 285 µVPP low-frequency noise ensure <±0.01% measurement accuracy across –10°C to +50°C ambient. |
Use Scenario: Tire pressure monitoring system (TPMS) ECU measuring piezoresistive bridge output. IC Role / Device Role / Timing Role: Supplies excitation reference for ratiometric bridge sensing and ADC reference in same domain. Use Value: AEC-Q100 Grade 1 rating and 20 mA drive support simultaneous bridge bias and ADC REF without external buffers. |
| Industrial PLC Analog Input Module | Medical Patient Monitoring Front-End |
Use Scenario: DIN-rail mounted PLC module digitizing 4–20 mA loop signals with galvanically isolated ADC. IC Role / Device Role / Timing Role: Local 3.0 V reference for isolated sigma-delta ADC, decoupled from noisy 24 V bus. Use Value: 70 ppm/V line regulation and 400 mV dropout allow direct derivation from 3.3 V isolated DC/DC, minimizing component count. |
Use Scenario: Portable ECG device digitizing sub-mV biopotential signals using 24-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Ultra-low-noise 3.0 V reference for ADC and programmable gain amplifier bias networks. Use Value: 285 µVPP (0.1–10 Hz) noise floor enables <1 µV RMS input-referred noise in clinical-grade signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | Fixed 3.0 V, 50 ppm/°C max tempco, 50 µA IQ, no enable pin, SOT-23-3 | Lacks shutdown control; lower drive (25 mA), higher noise (35 µVPP typ) | Choose when board space is critical and enable functionality is unnecessary |
| ADR3430ARJZ-R7 | 3.0 V, 10 ppm/°C max tempco, 120 µA IQ, no enable, SOT-23-5, ±0.1% initial accuracy | Higher quiescent current; no shutdown mode; requires 1 µF COUT for stability | Prefer when long-term stability (15 ppm/1000 hrs) outweighs power savings |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the LM4132BMFX-3.0/NOPB uniquely combines enable-controlled ultra-low IQ (3 µA), 10 ppm/°C tempco, and 20 mA drive in a 5-pin SOT-23 - making it optimal for battery-critical, thermally demanding, and buffer-free designs.
Availability
LM4132BMFX-3.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor modules, and industrial PLC analog input circuits requiring stable component supply, AEC-Q100 compliance, and long-lifecycle availability.
Supply support for LM4132BMFX-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 specializing in analog and embedded processing technologies, with decades of leadership in precision reference design and automotive-grade component validation.
The LM4132 family was engineered to deliver laser-trimmed reference performance using cost-effective CMOS + EEPROM trimming - targeting high-accuracy, low-power, and space-constrained applications in test equipment, medical devices, and automotive electronics.
FAQ
What is the maximum input voltage for the LM4132BMFX-3.0/NOPB?
The LM4132BMFX-3.0/NOPB supports a maximum input voltage of 5.5 V across its VIN pin. Operation above this level risks permanent damage, as specified in the Absolute Maximum Ratings table. The minimum input is VREF + 400 mV (i.e., 3.4 V), ensuring proper regulation under all load and temperature conditions.
Does the LM4132BMFX-3.0/NOPB require an output capacitor for stability?
No, the LM4132BMFX-3.0/NOPB is internally compensated and stable without an output capacitor. A 0.1 µF ceramic capacitor on VIN is required; COUT is optional and only recommended if additional high-frequency noise filtering is needed in sensitive applications like medical ADC front-ends.
What does the 'B' grade signify in LM4132BMFX-3.0/NOPB?
The 'B' in LM4132BMFX-3.0/NOPB denotes the accuracy grade: ±0.1% initial output voltage tolerance at 25°C and 20 ppm/°C max temperature coefficient over –40°C to +125°C. This grade balances precision and cost for automotive and industrial applications where A-grade (±0.05%) is not mandatory.
Can the LM4132BMFX-3.0/NOPB drive a 10 kΩ load directly?
Yes - the LM4132BMFX-3.0/NOPB delivers up to 20 mA output current, supporting loads down to 150 Ω (3.0 V / 20 mA). A 10 kΩ load draws only 300 µA, well within specification, with negligible impact on accuracy due to its 25 ppm/mA load regulation performance.
Is the LM4132BMFX-3.0/NOPB pin-compatible with other LM4132 variants?
Yes, all LM4132 variants (e.g., LM4132AMFX-2.5/NOPB, LM4132CMFX-3.3/NOPB) share identical SOT-23-5 (DBV) pinout and footprint. Only the output voltage and grade differ - enabling drop-in replacement during design iteration or voltage-scaling upgrades without PCB changes.
LM4132BMFX-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:
- ±0.1%
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132BMFX-3.0/NOPB FAQ
1.How can I place an order for LM4132BMFX-3.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BMFX-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 LM4132BMFX-3.0/NOPB reliable?
The price and inventory of LM4132BMFX-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 LM4132BMFX-3.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132BMFX-3.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BMFX-3.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BMFX-3.0/NOPB?
LM4132BMFX-3.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BMFX-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 LM4132BMFX-3.0/NOPB?
For technical support, including LM4132BMFX-3.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BMFX-3.0/NOPB requirements.
6.How does Aetrix verify that LM4132BMFX-3.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132BMFX-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 LM4132BMFX-3.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132BMFX-3.0/NOPB?
All LM4132BMFX-3.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BMFX-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 LM4132BMFX-3.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132BMFX-3.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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