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Texas Instruments LM336M-5.0
- Part No.:
- LM336M-5.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM336M-5.0.pdf
- Description:
- IC VREF SHUNT 2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,795
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Product details
Overview
LM336M-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, and operation over 0°C to +70°C. It functions as a low-temperature-coefficient zener replacement in analog front-ends, power supply feedback loops, and ADC/DAC reference circuits.
For engineers reviewing the LM336M-5.0 datasheet, LM336M-5.0 pinout, LM336M-5.0 application, or LM336M-5.0 equivalent, key selection criteria include its 600 μA–10 mA operating current range, trimmable voltage (±1 V), temperature stability of ≤12 mV over 0°C–70°C, and SOIC-8 compatibility with automated PCB assembly.
Technical Context
The LM336M-5.0 operates as a two-terminal shunt regulator with a third terminal enabling voltage and temperature coefficient trimming. Its monolithic construction delivers zener-like behavior with significantly lower dynamic impedance than discrete zeners.
It requires no external biasing beyond a series resistor and supports both positive and negative reference configurations. The device's thermal design relies on SOIC-8's θJA = 165°C/W and maximum junction temperature of 100°C, limiting continuous power dissipation to ~45 mW at ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 5.00 V nominal at 1 mA; ±1% initial accuracy ensures stable 5V reference without calibration in mid-precision systems. |
| Operating Current Range | 600 μA to 10 mA; enables use with high-value bias resistors in low-power designs or robust sourcing in noisy environments. |
| Dynamic Impedance | 0.6 Ω typical at 1 mA; minimizes output voltage variation under load transients, critical for high-resolution data converters. |
| Temperature Stability | ≤12 mV over 0°C to +70°C; guarantees <0.024% drift across commercial temperature range without external compensation. |
| Initial Tolerance | ±1% (LM336B grade); reduces need for post-assembly trimming in cost-sensitive industrial instrumentation. |
| Adjustment Range | ±1 V via external potentiometer; allows fine-tuning to compensate for system-level gain errors or aging effects. |
| Package | SOIC-8 (D package); surface-mount format supports automated placement and reflow, with 1.75 mm max height for low-profile layouts. |
Pinout & Package
LM336M-5.0 is housed in an 8-pin SOIC (D) package with standard pin spacing (1.27 mm pitch) and 1.75 mm maximum height. Pin 1 is located at the top-left corner with a beveled edge indicator per JEDEC MS-012AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to circuit ground or negative rail when used as a negative reference; defines current sink path. |
| Pin 2 | Cathode | Output node where regulated 5.0V appears; connects to load or feedback network. |
| Pin 3 | Adjust | Third terminal for trimming reference voltage and temperature coefficient; tied to potentiometer wiper in Figure 14/15. |
| Pins 4–8 | No Connect / Thermal Pad | Internally unconnected; left floating or grounded for thermal enhancement per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 0.6 Ω enables <1 mV output shift under 1 mA load step-critical for 12-bit+ ADC reference stability. |
| Wide operating current | 600 μA–10 mA range allows flexible biasing: ultra-low-power sensor nodes or high-immunity industrial interfaces. |
| Trim-capable architecture | Three-terminal design permits independent adjustment of voltage and temperature coefficient using external resistors/diodes. |
| Commercial temperature grade | 0°C to +70°C rating targets cost-optimized consumer, computing, and industrial control applications-not extended automotive or military. |
| SOIC-8 packaging | Standardized footprint simplifies PCB layout, supports AOI inspection, and enables drop-in replacement in existing D-package designs. |
Applications
| Digital Multimeter Reference | Programmable Power Supply Feedback |
|---|---|
Use Scenario: Precision DC voltage measurement in handheld DMMs requiring stable 5V reference for ADC scaling. IC Role / Device Role / Timing Role: Shunt voltage reference providing excitation and scaling reference for 16-bit sigma-delta ADC. Use Value: ±1% initial tolerance and ≤12 mV temp drift eliminate factory recalibration, reducing test time and BOM count. | Use Scenario: Output voltage regulation in lab-grade bench PSUs with programmable setpoints and remote sense. IC Role / Device Role / Timing Role: Precision 5V reference feeding error amplifier in isolated flyback or buck-derived secondary-side feedback loop. Use Value: 0.6Ω dynamic impedance ensures <0.5 mV output ripple under 100 mA load steps-meeting 0.01% regulation spec. |
| Data Acquisition System Reference | Op Amp Clamping Circuit |
Use Scenario: Single-supply signal conditioning front-end for vibration sensors in predictive maintenance gateways. IC Role / Device Role / Timing Role: Ground-referenced 5V reference for rail-to-rail op amp biasing and ADC input scaling. Use Value: Adjustable ±1V range compensates for PCB trace resistance and op amp input offset, maintaining 12-bit ENOB. | Use Scenario: Overvoltage protection in audio line drivers where output must not exceed ±5V into 600Ω loads. IC Role / Device Role / Timing Role: Shunt clamp limiting op amp output swing to precisely 5.0V using cathode-anode configuration. Use Value: Low 0.6Ω impedance ensures fast clamping response (<100 ns) and minimal distortion during transient overload events. |
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 (2.495V typ), higher 0.2Ω impedance, wider 1mA–100mA current range. | Requires external resistor divider for 5V output; lacks dedicated trim pin for tempco optimization. | Preferred when 2.5V base reference suffices and higher current drive is needed; not direct 5V replacement. |
| REF5050AIDR | 5.0V precision series reference, 3ppm/°C drift, 0.003% initial accuracy, 10μA quiescent current. | Series topology requires input >5.2V; incompatible with shunt-based low-voltage or bidirectional reference topologies. | Selected for metrology-grade systems needing <0.01% total error; unsuitable for battery-powered or negative-reference use cases. |
Compared with TL431ACDR and REF5050AIDR, the LM336M-5.0 uniquely balances fixed 5V output, trim capability, and true shunt operation-making it optimal for legacy-compatible, low-cost, and dual-polarity reference designs where moderate accuracy suffices.
Availability
LM336M-5.0 is available at Aetrix Electronics and suitable for digital multimeters, programmable power supplies, data acquisition systems, and op amp clamping circuits requiring stable component supply and SOIC-8 compatibility.
Supply support for LM336M-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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision analog ICs.
The LM336 family was designed specifically for cost-sensitive, medium-accuracy voltage reference needs in commercial-grade instrumentation and power management-prioritizing ease of use, trim flexibility, and robustness over ultra-low drift.
FAQ
What is the maximum operating temperature for LM336M-5.0?
The LM336M-5.0 is rated for operation from 0°C to +70°C ambient temperature, with a maximum junction temperature of 100°C. This commercial-grade specification aligns with TI's LM336B-5.0 variant and is validated per SNVS750D. Exceeding +70°C ambient risks exceeding the 100°C junction limit unless derated per SOIC-8's θJA = 165°C/W thermal resistance. Always verify board-level thermal performance in final layout.
Can LM336M-5.0 be used as a negative voltage reference?
Yes, LM336M-5.0 can function as a negative voltage reference by reversing its connection: connect the cathode to ground and the anode to the negative rail. As a shunt regulator, it regulates the voltage difference between its terminals regardless of polarity. This configuration is explicitly supported in TI's datasheet Figure 21 (Bipolar Output Reference) and enables symmetric ±5V references in dual-supply op amp circuits without additional components.
What is the purpose of the Adjust pin (Pin 3) on LM336M-5.0?
The Adjust pin (Pin 3) on LM336M-5.0 enables precise trimming of both output voltage and temperature coefficient. When configured per Figure 14, it allows ±1V adjustment of the 5.0V reference; when combined with four series diodes as in Figure 15, it minimizes temperature drift around 5.00V. This third terminal distinguishes LM336M-5.0 from basic zeners and provides design flexibility unattainable with two-terminal references-critical for meeting tight system-level accuracy specs without custom calibration.
How does LM336M-5.0 differ from LM336BZ-5.0?
LM336M-5.0 uses an 8-pin SOIC (D) package, while LM336BZ-5.0 uses a 3-pin TO-92 (LP) package. Both share identical electrical specs (LM336B-5.0 grade: ±1% tolerance, 0°C–70°C, 0.6Ω impedance), but LM336M-5.0 supports higher power dissipation (due to SOIC thermal performance), automated assembly, and PCB space efficiency. The TO-92 version is suited for prototyping or low-volume through-hole builds, whereas LM336M-5.0 targets high-volume SMT production.
Is LM336M-5.0 RoHS compliant and lead-free?
Yes, LM336M-5.0/NOPB.B is RoHS compliant and features lead-free (Sn) lead finish per TI's PACKAGE OPTION ADDENDUM. It carries MSL Level-1 rating (unlimited floor life) and is qualified for peak reflow temperatures up to 260°C, making it compatible with standard lead-free soldering profiles. The "NOPB" suffix explicitly denotes lead-free packaging, and TI confirms full compliance with EU RoHS Directive 2011/65/EU and related amendments.
LM336M-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
LM336M-5.0 FAQ
1.How can I place an order for LM336M-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM336M-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 LM336M-5.0 reliable?
The price and inventory of LM336M-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 LM336M-5.0 is usually 5 days.
3.What payment methods are accepted for LM336M-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM336M-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM336M-5.0?
LM336M-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM336M-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 LM336M-5.0?
For technical support, including LM336M-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM336M-5.0 requirements.
6.How does Aetrix verify that LM336M-5.0 is sourced from the original manufacturer or authorized distributors?
All LM336M-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 LM336M-5.0 meets industry standards.
7.What is the process for return or replacement of LM336M-5.0?
All LM336M-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM336M-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 LM336M-5.0 part is unused and in its original packaging.
Return procedure for LM336M-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM336M-5.0 Tags
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