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Texas Instruments LM336BM-5.0
- Part No.:
- LM336BM-5.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM336BM-5.0.pdf
- Description:
- IC VREF SHUNT 2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,689
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Product details
Overview
LM336BM-5.0 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 in analog-to-digital converters, power supply feedback loops, and calibration circuits.
For engineers reviewing the LM336BM-5.0 datasheet, LM336BM-5.0 pinout, LM336BM-5.0 application, or LM336BM-5.0 equivalent, key selection criteria include its guaranteed 5.00V output at 1 mA, low temperature coefficient adjustability, wide current compliance range, and SOIC-8 packaging for automated assembly in industrial and test equipment designs.
Technical Context
The LM336BM-5.0 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 delivers zener-like behavior with significantly lower dynamic impedance than discrete zeners.
Designed for operation from 0°C to +70°C, it achieves 4–12 mV temperature stability over that range when adjusted to 5.00V, and supports fast turn-on with minimal overshoot in transient response applications such as reference buffering and crowbar protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.00 V nominal at 1 mA reverse current; tightly controlled for precision ADC reference and DAC biasing. |
| Initial Tolerance | ±1% (LM336B grade); ensures first-pass accuracy without post-manufacture trimming in cost-sensitive systems. |
| Dynamic Impedance | 0.6 Ω typical; maintains stable regulation under varying load currents in feedback networks. |
| Operating Current Range | 600 μA to 10 mA; enables use with high-value bias resistors in low-power sensor interfaces. |
| Temperature Stability | 4–12 mV over 0°C to +70°C; supports stable performance in commercial-grade instrumentation without external compensation. |
| Package | SOIC-8 (D package); compatible with standard surface-mount reflow processes and automated optical inspection. |
Pinout & Package
LM336BM-5.0 is housed in an 8-pin SOIC (D) package with 1.27 mm lead pitch, 1.75 mm max height, and RoHS-compliant matte tin (SN) lead finish. The device uses a non-standard pinout optimized for shunt reference operation with dedicated anode, cathode, and adjustment terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Primary current sink node; connects to system ground or negative rail in shunt configuration. |
| Pin 2 | Cathode | Reference output node; supplies regulated 5.0V to load when reverse-biased via external resistor. |
| Pin 3 | Adjust | Trim terminal for fine-tuning output voltage and minimizing temperature drift using external potentiometer or diode network. |
| Pins 4–8 | No Connect / Internally Unused | Reserved for die attachment and thermal management; must remain unconnected per TI design guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output range | 4V to 6V via external potentiometer on ADJ pin - enables calibration across production tolerances and aging effects. |
| Low temperature coefficient | Minimized to <10 ppm/°C when trimmed to 5.00V - critical for high-resolution measurement front-ends. |
| Wide operating current | 600 μA to 10 mA compliance - accommodates both ultra-low-power battery sensors and higher-current op-amp buffers. |
| Fast turn-on | Sub-microsecond response to current step changes - suitable for dynamic reference switching in multiplexed data acquisition systems. |
| Three-terminal architecture | Dedicated ANODE/CATHODE/ADJ pins - allows independent optimization of voltage accuracy and thermal drift without trade-offs. |
Applications
| Digital Multimeter Reference | Programmable Power Supply Feedback |
|---|---|
Use Scenario: Provides stable 5.0V reference for 16-bit ADC in handheld DMMs requiring <0.1% full-scale accuracy. IC Role / Device Role / Timing Role: Shunt voltage reference establishing absolute scaling factor for analog input conversion. Use Value: ±1% initial tolerance and 4 mV temp stability over 0°C–70°C eliminate need for factory recalibration during production. | Use Scenario: Sets precise output voltage in lab-grade bench PSUs with remote sense and digital control interface. IC Role / Device Role / Timing Role: Primary feedback reference in isolated error amplifier loop, referenced to secondary-side ground. Use Value: 0.6Ω dynamic impedance ensures minimal load-induced error during rapid current transients up to 10 A. |
| Calibration Source for Sensor Transmitters | Op-Amp Clamping Reference |
Use Scenario: Generates traceable 5.0V reference in 4–20 mA HART-enabled pressure transmitters for field calibration. IC Role / Device Role / Timing Role: Precision DC reference used to calibrate internal DACs and analog front-end gain stages. Use Value: Adjustable trim capability allows end-of-line correction to compensate for PCB trace resistance and solder joint variance. | Use Scenario: Limits op-amp output swing to ±5.0V in signal conditioning circuits for data acquisition cards. IC Role / Device Role / Timing Role: Bidirectional clamp reference connected to op-amp output via series resistor and diode network. Use Value: Fast turn-on and low dynamic impedance prevent overshoot during clipping transitions, preserving signal fidelity. |
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 nominal reference; adjustable to 36V via resistor divider; 0.2Ω typical impedance; SOIC-8 package. | Requires external resistors to set 5.0V; lacks dedicated ADJ pin for direct temp-coefficient trimming. | Preferred where programmability and tighter 0.5% initial tolerance are prioritized over native 5.0V output and trim simplicity. |
| REF5050AIDR | 5.0V precision series reference; 3ppm/°C max drift; 10μA quiescent current; SOIC-8 package. | Series topology requires different biasing; not usable as shunt regulator; higher cost and complexity. | Selected when ultra-low drift and low noise are mandatory, and board space allows series reference layout with dedicated ground path. |
Compared with TL431ACDR and REF5050AIDR, the LM336BM-5.0 offers native 5.0V output with integrated trim capability and shunt topology - simplifying design for fixed-voltage, low-component-count reference needs in commercial-grade instrumentation.
Availability
LM336BM-5.0 is available at Aetrix Electronics and suitable for digital multimeters, programmable power supplies, sensor calibration modules, and op-amp clamping circuits requiring stable component supply with consistent parametric performance across production lots.
Supply support for LM336BM-5.0 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 leader delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, scalability, and broad technical support infrastructure.
The LM336 family was developed specifically for precision shunt reference applications in commercial instrumentation, test equipment, and industrial control systems where stable, trimmable 5.0V references are required without complex external circuitry.
FAQ
What is the maximum reverse current rating for LM336BM-5.0?
The absolute maximum reverse current for LM336BM-5.0 is 15 mA, as specified in the Absolute Maximum Ratings table. Operation above this level risks permanent damage. For reliable long-term performance, TI recommends staying within the 600 μA to 10 mA operating current range defined in the Electrical Characteristics section of the LM336BM-5.0 datasheet.
Can LM336BM-5.0 be used as a negative voltage reference?
Yes, LM336BM-5.0 can function as a negative voltage reference because it operates as a bidirectional shunt regulator. When the cathode is held at a fixed negative potential and the anode is grounded, the device regulates −5.0V at the cathode. This configuration is explicitly supported in TI's application notes and used in bipolar output reference designs like Figure 21 of the LM336BM-5.0 datasheet.
Does LM336BM-5.0 require external capacitors for stability?
No, LM336BM-5.0 does not require external capacitors for basic DC stability. Its internal design provides inherent stability across the full 600 μA to 10 mA operating range. However, a 0.1 μF ceramic capacitor placed between cathode and anode is recommended in noisy environments or fast-switching applications to suppress high-frequency ripple, as noted in TI's Application Hints section.
What is the purpose of the ADJ pin on LM336BM-5.0?
The ADJ (adjust) pin on LM336BM-5.0 enables precise trimming of both output voltage and temperature coefficient. Connected to a potentiometer or diode network (e.g., Figure 14–15), it allows calibration to exactly 5.00V and minimizes drift over temperature - a capability not available in standard two-terminal zener diodes. This pin is essential for achieving the 4 mV temperature stability specification.
Is LM336BM-5.0 RoHS compliant and what is its MSL rating?
Yes, LM336BM-5.0/NOPB.B is RoHS compliant with matte tin (SN) lead finish and carries an MSL Level-1 rating with unlimited floor life at ≤30°C/60% RH. Its peak reflow temperature is rated at 260°C, fully compatible with standard Pb-free soldering profiles for SOIC-8 packages as documented in TI's Package Materials Information.
LM336BM-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for LM336BM-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM336BM-5.0 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 LM336BM-5.0 reliable?
The price and inventory of LM336BM-5.0 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 is usually 5 days.
3.What payment methods are accepted for LM336BM-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM336BM-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM336BM-5.0?
LM336BM-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM336BM-5.0 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 LM336BM-5.0?
For technical support, including LM336BM-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM336BM-5.0 requirements.
6.How does Aetrix verify that LM336BM-5.0 is sourced from the original manufacturer or authorized distributors?
All LM336BM-5.0 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 LM336BM-5.0 meets industry standards.
7.What is the process for return or replacement of LM336BM-5.0?
All LM336BM-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM336BM-5.0, 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 LM336BM-5.0 part is unused and in its original packaging.
Return procedure for LM336BM-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM336BM-5.0 Tags
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