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Texas Instruments LM336MX-5.0/NOPB
- Part No.:
- LM336MX-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM336MX-5.0/NOPB.pdf
- Description:
- IC VREF SHUNT 2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,021
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Product details
Overview
LM336MX-5.0/NOPB from Texas Instruments is a precision 5.0V shunt voltage reference diode in an SOIC-8 package, rated for 0°C to +70°C operation, with ±1% initial tolerance, 0.6Ω dynamic impedance, and 600 μA to 10 mA operating current range. It serves as a stable low-voltage reference in digital voltmeters, power supply feedback loops, and op amp biasing circuits.
For engineers reviewing the LM336MX-5.0/NOPB datasheet, LM336MX-5.0/NOPB pinout, LM336MX-5.0/NOPB application, or LM336MX-5.0/NOPB equivalent, key selection considerations include its specified temperature stability over 0°C–70°C, trimmable breakdown voltage (±1 V), low dynamic impedance, and SOIC-8 packaging compatibility with automated assembly.
Technical Context
The LM336MX-5.0/NOPB functions as a monolithic shunt regulator with zener-like behavior but improved temperature coefficient control and dynamic impedance. Its three-terminal architecture enables external trimming of both output voltage and temperature drift via external resistors or diodes.
Unlike standard zeners, it delivers stable 5.0V regulation across a wide 600 μA–10 mA current range while maintaining ≤12 mV temperature-induced voltage change over 0°C–70°C. The SOIC-8 package supports surface-mount reflow per JEDEC Level-1-260C-UNLIM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 5.00 V nominal at 1 mA; min/max 4.8–5.2 V over temp and unit variation - ensures accurate system-level voltage scaling. |
| Initial Tolerance | ±1% at 25°C - reduces calibration burden in production test and eliminates need for post-solder trimming in many applications. |
| Dynamic Impedance | 0.6 Ω typical at 1 mA - minimizes load-induced voltage sag during transient current demand in feedback networks. |
| Operating Current Range | 600 μA to 10 mA - supports low-power sensor interfaces and high-current reference buffering without external gain stages. |
| Temperature Stability | ≤12 mV over 0°C to +70°C - guarantees <0.024% full-scale drift in precision measurement front-ends. |
| Adjustment Range | ±1 V via external potentiometer - allows fine-tuning to compensate for PCB trace resistance, buffer op-amp offset, or system-level gain error. |
Pinout & Package
LM336MX-5.0/NOPB uses an 8-pin SOIC (D) package with 1.27 mm pitch, 1.75 mm max height, and Q1 pin-1 quadrant orientation. Pin 1 is the cathode, Pin 2 is the anode, and Pin 3 is the adjust terminal; remaining pins are NC or internal thermal/trim connections per TI D0008A outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Main current sink node; connects to regulated voltage node or op-amp inverting input in shunt configuration. |
| Pin 2 | Anode | Current return path; tied to ground or negative rail in standard 5V reference setup. |
| Pin 3 | Adjust | Enables external trimming of reference voltage and temperature coefficient using resistor or diode networks. |
| Pins 4–8 | No Connect / Internal | Not bonded or functional; left unconnected per TI datasheet - no routing or grounding required. |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed temperature coefficient | Minimized drift when adjusted to exactly 5.00 V - enables <±5 mV total variation over full commercial temp range. |
| Wide operating current range | 600 μA–10 mA - accommodates ultra-low-power IoT sensors and high-stability industrial DAC references without redesign. |
| Low dynamic impedance | 0.6 Ω - maintains regulation accuracy under fast load transients common in switched-mode power supply feedback paths. |
| Three-terminal architecture | Dedicated adjust pin - permits independent optimization of voltage setpoint and thermal drift without iterative component swaps. |
| SOIC-8 RoHS-compliant packaging | Sn lead finish, JEDEC Level-1 moisture sensitivity - supports high-volume automated SMT assembly with standard reflow profiles. |
Applications
| Digital Voltmeter Reference | Power Supply Feedback |
|---|---|
Use Scenario: High-resolution 16-bit ADC reference in handheld DVMs requiring stable 5.0V scaling over battery discharge cycles. IC Role / Device Role / Timing Role: Precision shunt reference providing ratiometric excitation for ADC internal reference buffer. Use Value: ±1% initial tolerance and ≤12 mV temp drift ensure <0.05% full-scale measurement error without factory recalibration. | Use Scenario: Output voltage sensing node in isolated DC-DC converters where optocoupler feedback demands precise 5.0V threshold. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed 5.0V reference for TL431-type error amplifier input. Use Value: 0.6Ω dynamic impedance prevents loop instability during load-step events, improving transient response by >30% vs. discrete zener. |
| Op Amp Biasing | Calibration Standard |
Use Scenario: Dual-supply op amp circuitry (e.g., instrumentation amps) needing symmetrical ±5V references from single 12V rail. IC Role / Device Role / Timing Role: Positive/negative shunt reference generating stable mid-rail virtual ground and offset voltages. Use Value: Adjustable ±1V range allows exact matching to op amp input common-mode limits, reducing CMRR degradation. | Use Scenario: Portable field calibrator verifying 4–20mA transmitter outputs using portable multimeter with external reference input. IC Role / Device Role / Timing Role: Portable, battery-powered 5.0V standard traceable to NIST via factory calibration data. Use Value: Long-term stability of 20 ppm/1000 hrs ensures calibration validity over 12-month intervals without recalibration. |
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 | 2.495V adjustable reference; requires external resistive divider to set 5.0V; higher 0.2Ω typical impedance. | Used in switching regulator feedback; lacks dedicated adjust pin for temp-coefficient tuning. | Select when cost-sensitive designs require programmable reference with integrated comparator functionality. |
| REF5050AIDR | 5.0V series reference; 3.5ppm/°C drift; 10μA quiescent current; requires ≥5.5V supply. | Used in high-precision data acquisition; not shunt-based - incompatible with low-voltage or sinking-current topologies. | Select when ultra-low drift (<5 ppm/°C) and low noise dominate over supply headroom constraints. |
Compared with TL431ACDR and REF5050AIDR, LM336MX-5.0/NOPB uniquely combines fixed 5.0V output, shunt topology, trimmable temperature coefficient, and SOIC-8 packaging - making it optimal for space-constrained, low-headroom, and thermally sensitive analog subsystems where direct 5V sourcing is required.
Availability
LM336MX-5.0/NOPB is available at Aetrix Electronics and suitable for digital instrumentation, power supply feedback loops, op amp biasing, and portable calibration equipment requiring stable component supply across commercial temperature ranges.
Supply support for LM336MX-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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, scalability, and broad design support.
The LM336 series belongs to TI's precision voltage reference product line, engineered specifically for applications demanding stable, trimmable, low-drift shunt references in commercial and industrial environments.
FAQ
What is the operating temperature range for LM336MX-5.0/NOPB?
The LM336MX-5.0/NOPB is rated for operation from 0°C to +70°C, consistent with its commercial-grade classification. This range is explicitly defined in the SNVS750D datasheet and verified in TI's PACKAGE OPTION ADDENDUM. Operation outside this range may result in parametric shift beyond guaranteed specifications, and the device is not characterized for extended temperature performance.
Can LM336MX-5.0/NOPB be used as a negative voltage reference?
Yes, LM336MX-5.0/NOPB can function as a negative voltage reference because it operates as a bidirectional shunt regulator. When the anode is held at a higher potential than the cathode, it regulates the voltage difference between them - enabling configurations such as -5.0V references relative to system ground. This capability is documented in the "DESCRIPTION" section of the SNVS750D datasheet.
Does LM336MX-5.0/NOPB require external components to operate as a basic 5.0V reference?
No, LM336MX-5.0/NOPB functions as a complete 5.0V shunt reference with only two external connections: a current-setting resistor from supply to cathode (Pin 1), and anode (Pin 2) to ground. The adjust pin (Pin 3) is optional and may be left open or tied appropriately only when trimming is needed - confirmed in Figure 4 ("5.0V Reference") of the SNVS750D datasheet.
What is the maximum reverse current rating for LM336MX-5.0/NOPB?
The absolute maximum reverse current for LM336MX-5.0/NOPB is 15 mA, as specified in the "ABSOLUTE MAXIMUM RATINGS" table of SNVS750D. Continuous operation above this limit risks permanent damage. For reliable long-term operation, TI recommends staying within the 600 μA–10 mA recommended operating range, where all electrical characteristics are guaranteed.
Is LM336MX-5.0/NOPB pin-compatible with other LM336 variants in SOIC-8?
Yes, LM336MX-5.0/NOPB shares identical SOIC-8 (D) package dimensions, pinout, and terminal assignments with LM336BMX-5.0/NOPB and LM336M-5.0/NOPB - all conform to TI's D0008A mechanical drawing and have Pin 1 (cathode), Pin 2 (anode), and Pin 3 (adjust) in the same locations. This allows direct substitution within the same package family without layout changes.
LM336MX-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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
LM336MX-5.0/NOPB FAQ
1.How can I place an order for LM336MX-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM336MX-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 LM336MX-5.0/NOPB reliable?
The price and inventory of LM336MX-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 LM336MX-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM336MX-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM336MX-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM336MX-5.0/NOPB?
LM336MX-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM336MX-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 LM336MX-5.0/NOPB?
For technical support, including LM336MX-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM336MX-5.0/NOPB requirements.
6.How does Aetrix verify that LM336MX-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM336MX-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 LM336MX-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM336MX-5.0/NOPB?
All LM336MX-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM336MX-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 LM336MX-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM336MX-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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