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Texas Instruments LM4050BIM3X-5.0/NOPB
- Part No.:
- LM4050BIM3X-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4050BIM3X-5.0/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,608
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Product details
Overview
LM4050BIM3X-5.0/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SOT-23 package, delivering a stable 5.0 V reverse breakdown voltage with ±0.2% initial tolerance (B-grade), 50 ppm/°C max temperature coefficient, and 93 μVrms wideband noise (10 Hz–10 kHz). It operates from 56 μA to 15 mA and supports industrial (−40°C to +85°C) and extended (−40°C to +125°C) temperature ranges - ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the LM4050BIM3X-5.0/NOPB datasheet, LM4050BIM3X-5.0/NOPB pinout, LM4050BIM3X-5.0/NOPB application, or LM4050BIM3X-5.0/NOPB equivalent, this page provides verified specifications, validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The LM4050BIM3X-5.0/NOPB uses bandgap-based Zener-zap trimmed shunt architecture with curvature-corrected temperature drift compensation, enabling stable 5.0 V reference output across −40°C to +125°C. Its low dynamic impedance (0.5 Ω typical at 1 mA) and capacitive-load tolerance eliminate need for external stabilization capacitors.
It features fuse-trimmed reverse breakdown voltage during wafer sort, achieving ±0.2% accuracy at 25°C (B-grade), and maintains <120 ppm long-term stability after 1000 hours. Thermal hysteresis is specified at 1.4 mV over −40°C ↔ 125°C cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V nominal reverse breakdown voltage, fixed and non-adjustable |
| Initial Tolerance | ±0.2% at 25°C (B-grade), verified per production test limits |
| Temp Coefficient | ≤50 ppm/°C max over −40°C to +125°C, enabling stable bias in wide-temp systems |
| Operating Current | 56 μA min to 15 mA max - supports ultra-low-power sensor nodes and high-current DAC references |
| Noise (10 Hz–10 kHz) | 93 μVrms typical - suitable for 16-bit+ data acquisition without added filtering |
| Dynamic Impedance | 0.5 Ω typical at 1 mA - ensures minimal load regulation error (<8 mV over 1–15 mA) |
| Long-Term Stability | 120 ppm ΔVR after 1000 hrs at 25°C - critical for calibration-critical equipment |
Pinout & Package
SOT-23 (DBZ) package, 3-pin surface-mount, body size 2.92 mm × 1.30 mm, thermal resistance RθJA = 287°C/W (board mounted).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt current input / reference voltage node | Connects to supply rail; sinks all operating + load current; sets reference potential |
| Anode (Pin 2) | Common return / ground reference | Must be connected to system ground; defines 0 V reference for cathode voltage |
| NC (Pin 3) | No internal connection | Left floating per datasheet; no PCB trace or pad required |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Stable operation with any capacitive load - eliminates BOM item and layout risk |
| Fixed 5.0 V breakdown | Factory-trimmed Zener-zap voltage eliminates external resistor network or trimming |
| Micropower operation | 56 μA minimum current enables battery life extension in always-on sensing nodes |
| Industrial & extended temp range | Rated for −40°C to +85°C (industrial) and −40°C to +125°C (extended) - supports automotive under-hood and industrial control |
| Low thermal hysteresis | 1.4 mV max hysteresis after −40°C ↔ 125°C cycling - preserves calibration integrity across thermal cycles |
Applications
| Portable Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Handheld multimeter with 16-bit SAR ADC requiring stable reference under varying battery voltage and ambient temperature. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 5.0 V bias to ADC reference input and analog front-end op-amps. Use Value: ±0.2% initial tolerance and ≤50 ppm/°C drift ensure measurement accuracy remains within 0.05% full-scale over temperature without recalibration. |
Use Scenario: Modular DAQ module for factory floor monitoring, sampling multiple sensors at 100 kSPS with simultaneous 16-bit resolution. IC Role / Device Role / Timing Role: Primary reference source for dual 16-bit ADCs and precision DAC outputs in isolated signal chain. Use Value: 93 μVrms noise and 0.5 Ω dynamic impedance minimize code spread and maintain ENOB >15.2 bits across full operating current range. |
| Energy Management Systems | Precision Audio Components |
Use Scenario: Smart circuit breaker with integrated voltage/current/power metering and fault detection logic. IC Role / Device Role / Timing Role: Reference for metrology-grade ADC measuring line voltage and current with <100 ppm total error budget. Use Value: 120 ppm long-term stability and 1.4 mV thermal hysteresis prevent drift-induced false trip events over 10-year field deployment. |
Use Scenario: High-fidelity audio DAC board where analog output stage requires ultra-low-noise, thermally stable bias. IC Role / Device Role / Timing Role: Shunt reference for op-amp bias networks and DAC VREF pins in Class-A headphone amplifier section. Use Value: Capacitive-load tolerance allows direct coupling to 100 nF bypass caps on sensitive analog rails - no ringing or instability observed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL4050B50IDBZR | Same 5.0 V, ±0.2% tolerance, SOT-23 package; higher max operating current (20 mA vs 15 mA); 100 μVrms noise (vs 93 μVrms) | Supports higher-current reference loads; slightly noisier - less optimal for 16-bit+ low-noise designs | Preferred when >15 mA reference sink capability is needed; verify thermal margin at 20 mA |
| ADR3450ARJZ-R7 | 5.0 V, ±0.1% (A-grade), SOIC-8 package; 4 ppm/°C typical tempco (vs 50 ppm/°C max); requires 100 nF output cap | Higher accuracy and lower drift, but larger footprint and capacitor dependency - not drop-in | Choose when absolute accuracy and ultra-low drift outweigh size and simplicity constraints |
Compared with TL4050B50IDBZR and ADR3450ARJZ-R7, the LM4050BIM3X-5.0/NOPB offers the best balance of SOT-23 compactness, capacitor-free operation, and B-grade precision - making it optimal for space-constrained, low-maintenance reference designs where 0.2% initial error and 50 ppm/°C drift are acceptable.
Availability
LM4050BIM3X-5.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, data acquisition systems, and energy management systems requiring stable component supply with guaranteed long-term continuity.
Supply support for LM4050BIM3X-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 power management ICs, with decades of expertise in precision reference design.
The LM4050-N series was engineered for space-constrained, micropower applications demanding high initial accuracy and low temperature drift - targeting portable test equipment, industrial sensors, and automotive subsystems.
FAQ
What is the minimum operating current for LM4050BIM3X-5.0/NOPB?
The LM4050BIM3X-5.0/NOPB requires a minimum operating current of 56 μA at 25°C, increasing to 80 μA over the industrial temperature range (−40°C to +85°C) and 90 μA over the extended range (−40°C to +125°C). This ensures stable 5.0 V regulation while supporting ultra-low-power designs such as battery-operated sensors. Below this threshold, the LM4050BIM3X-5.0/NOPB may not maintain specified voltage accuracy or noise performance.
Does LM4050BIM3X-5.0/NOPB require an external output capacitor?
No, the LM4050BIM3X-5.0/NOPB does not require an external output capacitor. Its internal design tolerates any capacitive load and ensures stability without added components - a key advantage over many competing shunt references. This simplifies layout, reduces BOM count, and eliminates capacitor-related failure modes. The LM4050BIM3X-5.0/NOPB achieves this via optimized dynamic impedance and internal compensation.
What is the temperature coefficient specification for LM4050BIM3X-5.0/NOPB?
The LM4050BIM3X-5.0/NOPB has a maximum average temperature coefficient of 50 ppm/°C over the full operating range (−40°C to +125°C), measured as ΔVR/ΔT at 100 μA. At 25°C only, the typical coefficient is ±20 ppm/°C. This low drift enables accurate voltage referencing in environments with wide thermal swings - critical for field-deployed instrumentation where calibration intervals are infrequent. The LM4050BIM3X-5.0/NOPB achieves this through curvature-corrected bandgap-Zener hybrid design.
How does the noise performance of LM4050BIM3X-5.0/NOPB compare to other 5 V shunt references?
The LM4050BIM3X-5.0/NOPB delivers 93 μVrms wideband noise (10 Hz to 10 kHz) at 100 μA, which is competitive among precision micropower shunt references. It outperforms older references like TL431 (typically >200 μVrms) and matches or slightly exceeds TL4050B50IDBZR (100 μVrms). This low noise supports 16-bit ADC/DAC applications without additional filtering. The LM4050BIM3X-5.0/NOPB achieves this via low-noise Zener structure and optimized die layout.
Is LM4050BIM3X-5.0/NOPB qualified for automotive applications?
No, the LM4050BIM3X-5.0/NOPB is not AEC-Q100 qualified. It belongs to the industrial-grade LM4050-N family. For automotive use, TI offers the LM4050-N-Q1 variant (e.g., LM4050BIM3X-5.0/Q1), which is AEC-Q100 Grade 1 qualified (−40°C to +125°C) and manufactured on an automotive-grade flow. The LM4050BIM3X-5.0/NOPB shares identical electrical specs but lacks automotive qualification documentation and process controls required for safety-critical vehicle systems.
LM4050BIM3X-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 93µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 80 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4050BIM3X-5.0/NOPB FAQ
1.How can I place an order for LM4050BIM3X-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4050BIM3X-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 LM4050BIM3X-5.0/NOPB reliable?
The price and inventory of LM4050BIM3X-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 LM4050BIM3X-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4050BIM3X-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4050BIM3X-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4050BIM3X-5.0/NOPB?
LM4050BIM3X-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4050BIM3X-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 LM4050BIM3X-5.0/NOPB?
For technical support, including LM4050BIM3X-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4050BIM3X-5.0/NOPB requirements.
6.How does Aetrix verify that LM4050BIM3X-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4050BIM3X-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 LM4050BIM3X-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4050BIM3X-5.0/NOPB?
All LM4050BIM3X-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4050BIM3X-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 LM4050BIM3X-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM4050BIM3X-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4050BIM3X-5.0/NOPB Tags
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