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Texas Instruments LM336BM-5.0/NOPB
- Part No.:
- LM336BM-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM336BM-5.0/NOPB.pdf
- Description:
- IC VREF SHUNT 2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:657
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Product details
Overview
LM336BM-5.0/NOPB from Texas Instruments is a precision 5.0V shunt voltage reference IC in an 8-pin SOIC package, featuring ±1% initial tolerance, 0.6Ω dynamic impedance, 600 μA to 10 mA operating current range, and 0°C to +70°C temperature rating. It serves as a stable low-voltage reference for analog-to-digital converters, power supply feedback loops, and calibration circuits in industrial instrumentation.
For engineers reviewing the LM336BM-5.0/NOPB datasheet, LM336BM-5.0/NOPB pinout, LM336BM-5.0/NOPB application, or LM336BM-5.0/NOPB equivalent, key selection criteria include its trimmed temperature coefficient, low dynamic impedance, wide bias current range, and SOIC-8 compatibility with automated PCB assembly.
Technical Context
The LM336BM-5.0/NOPB operates as a two-terminal shunt regulator with a third terminal (ADJ) enabling precise trimming of both output voltage and temperature coefficient. Its monolithic construction integrates a bandgap-derived reference core with a low-impedance zener-like output stage.
Unlike standard zeners, it delivers stable 5.00V regulation across 600 μA–10 mA without external components, supports bidirectional polarity use, and achieves ≤12 mV temperature stability over 0°C to +70°C when adjusted to 5.00V per Figure 15 of SNVS750D.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 5.00 V nominal; guaranteed 4.90–5.10 V at 1 mA (LM336B grade), enabling accurate ADC reference scaling |
| Initial Tolerance | ±1% at 25°C; reduces system calibration burden in production test fixtures |
| Dynamic Impedance | 0.6 Ω typical at 1 mA; maintains <1 mV output shift under 1 mA load transients |
| Operating Current | 600 μA to 10 mA; supports ultra-low-power sensor interfaces and high-current reference buffering |
| Temp Stability | ≤12 mV over 0°C to +70°C (LM336-5.0 grade); ensures <25 ppm/°C drift in untrimmed configurations |
| Temp Range | 0°C to +70°C ambient; matches commercial-grade microcontroller and data acquisition systems |
| Package | SOIC-8 (D package); compatible with standard surface-mount reflow profiles (Level-1-260°C-UNLIM) |
Pinout & Package
LM336BM-5.0/NOPB uses an 8-pin SOIC (D) package with 1.27 mm pitch, 3.91 mm width, and 4.90 mm length. Pin 1 is marked by a beveled corner or notch; device height is ≤1.75 mm. Thermal resistance θJA = 165°C/W (0.125″ leads).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (ANODE) | Current sink input | Connects to regulated output node; reverse-biased during normal operation |
| Pin 2 (CATHODE) | Reference output | Provides stable 5.00V; must be decoupled with ≥100 nF capacitor for noise immunity |
| Pin 3 (ADJ) | Voltage/TC trim terminal | Enables adjustment of breakdown voltage (±1 V) and minimization of temperature coefficient via external potentiometer |
| Pins 4–8 | No-connect (NC) | Internally unconnected; must remain floating or grounded per layout guidelines to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable reference range | 4 V to 6 V via ADJ pin-supports custom reference generation without discrete resistor networks |
| Low temperature coefficient | Minimized to <25 ppm/°C when trimmed to 5.00V-critical for high-accuracy measurement front-ends |
| Wide operating current | Functional from 600 μA to 10 mA-enables direct interface with low-power MCUs and high-current op-amp buffers |
| 0.6 Ω dynamic impedance | Delivers <0.6 mV output change per 1 mA load step-superior to discrete zener diodes in dynamic regulation |
| Three-terminal topology | Separates reference output, current path, and trim functions-enables independent optimization of accuracy and thermal drift |
Applications
| Digital Multimeter Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Precision 5.0V reference for 16-bit SAR ADC in handheld DMMs requiring <0.05% full-scale accuracy. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable excitation and conversion reference for dual-slope or successive-approximation ADC stages. Use Value: ±1% initial tolerance and ≤12 mV temp drift over 0°C–70°C eliminate need for factory recalibration during product lifetime. | Use Scenario: Reference source for 4–20 mA transmitter loop-powered sensors in factory automation. IC Role / Device Role / Timing Role: Low-current shunt reference supplying excitation to RTDs and bridge transducers while maintaining loop compliance. Use Value: 600 μA minimum operating current enables operation from 12 V loop supplies with >2 kΩ headroom, reducing power dissipation vs. series references. |
| Programmable Power Supply Feedback | Calibration Standard for Test Equipment |
Use Scenario: Adjustable 5.0V reference in lab-grade bench power supplies supporting 4.0–6.0V output programming. IC Role / Device Role / Timing Role: Trimmed shunt reference feeding error amplifier feedback network to set output voltage with <10 mV resolution. Use Value: ADJ pin allows ±1 V adjustment range without altering temperature coefficient-enabling single-BOM support for multiple output variants. | Use Scenario: Stable 5.00V source in portable calibrators used to verify digital panel meters and PLC analog inputs. IC Role / Device Role / Timing Role: Primary voltage standard traceable to NIST via factory trim; used to validate DMM accuracy before field deployment. Use Value: 0.6 Ω dynamic impedance ensures <0.1 mV output shift during meter self-test sequences, preserving calibration integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431ACDR | 2.5V adjustable reference; requires external resistors for 5V output; higher 0.2Ω typical dynamic impedance | Widely used in SMPS feedback; less suitable for precision metrology due to 2.5V base and resistor-induced errors | Select TL431ACDR only when cost sensitivity outweighs absolute accuracy needs and 2.5V base is acceptable |
| REF5050AIDR | 5.0V series reference; 3 V to 18 V input; 3 ppm/°C max drift; 10 µA quiescent current | Requires higher supply headroom; superior long-term stability but incompatible with shunt-based topologies | Choose REF5050AIDR for battery-powered systems needing ultra-low IQ and <5 ppm/°C drift, not for shunt-regulated designs |
Compared with TL431ACDR and REF5050AIDR, the LM336BM-5.0/NOPB uniquely combines fixed 5.0V output, shunt topology, SOIC-8 packaging, and trimmable temperature coefficient-making it optimal for cost-sensitive, space-constrained, and metrology-grade applications where external resistors or series architecture are undesirable.
Availability
LM336BM-5.0/NOPB is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, programmable power supply feedback, and portable calibration equipment requiring stable component supply across extended production cycles.
Supply support for LM336BM-5.0/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, embedded processing, and connectivity technologies, with over 90 years of innovation in precision analog ICs.
The LM336 family was designed specifically for high-accuracy, low-drift voltage referencing in commercial-grade instrumentation, test equipment, and industrial control systems-prioritizing ease of trimming, wide current range, and robust thermal performance.
FAQ
What is the maximum operating current for LM336BM-5.0/NOPB?
The LM336BM-5.0/NOPB supports a maximum operating current of 10 mA, as specified in the Electrical Characteristics table of SNVS750D. Exceeding this value risks exceeding the device's power dissipation limit in SOIC-8 packaging, potentially degrading long-term stability or causing thermal shutdown in sustained conditions. Always verify junction temperature using θJA = 165°C/W when designing for continuous 10 mA operation.
Can LM336BM-5.0/NOPB be used as a negative voltage reference?
Yes, LM336BM-5.0/NOPB can function as a negative voltage reference by reversing its anode and cathode connections relative to ground-leveraging its inherent shunt regulator architecture. When configured this way, Pin 2 (CATHODE) becomes the negative reference output (–5.00V), and Pin 1 (ANODE) connects to ground. The ADJ pin remains functional for trimming, and all electrical specifications-including dynamic impedance and temperature stability-apply identically in inverted polarity.
How do I minimize temperature drift when using LM336BM-5.0/NOPB?
To minimize temperature drift, adjust the LM336BM-5.0/NOPB to exactly 5.00V at 25°C using the ADJ pin and a 10 kΩ potentiometer per Figure 15 in SNVS750D, then add four silicon signal diodes (e.g., 1N4148) in series with the pot. Mount these diodes thermally adjacent to the LM336BM-5.0/NOPB on the PCB. This configuration reduces drift to <25 ppm/°C, significantly improving stability over the 0°C to +70°C range compared to untrimmed operation.
Is LM336BM-5.0/NOPB RoHS compliant?
Yes, LM336BM-5.0/NOPB is RoHS compliant, as confirmed in TI's Package Option Addendum where "RoHS" is marked "Yes" for this orderable part number. It uses Sn (tin) lead finish and meets JEDEC Level-1 moisture sensitivity requirements with peak reflow at 260°C. Full compliance documentation, including substance declarations and test reports, is accessible via TI's Quality & Environmental Information portal using the LM336BM-5.0/NOPB part number.
What is the purpose of Pins 4–8 on LM336BM-5.0/NOPB?
Pins 4–8 on LM336BM-5.0/NOPB are no-connect (NC) terminals with no internal connection to the die. They must remain electrically floating in the circuit layout; grounding or routing signals to them may introduce parasitic capacitance or leakage paths that degrade reference accuracy or noise performance. TI's SOIC-8 package drawing D0008A explicitly defines these pins as NC, and the device functions identically whether they are left unpopulated or soldered to unused copper areas.
LM336BM-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±2%
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 600 µA
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM336BM-5.0/NOPB FAQ
1.How can I place an order for LM336BM-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM336BM-5.0/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 LM336BM-5.0/NOPB reliable?
The price and inventory of LM336BM-5.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM336BM-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM336BM-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM336BM-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM336BM-5.0/NOPB?
LM336BM-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM336BM-5.0/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 LM336BM-5.0/NOPB?
For technical support, including LM336BM-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM336BM-5.0/NOPB requirements.
6.How does Aetrix verify that LM336BM-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM336BM-5.0/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 LM336BM-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM336BM-5.0/NOPB?
All LM336BM-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM336BM-5.0/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 LM336BM-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM336BM-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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