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Analog Devices Inc./Maxim Integrated LM4050BIX3-5.0
- Part No.:
- LM4050BIX3-5.0
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
LM4050BIX3-5.0.pdf
- Description:
- LM4050 50PPM PER DEGREE CELSIUS
- Quantity:
- Payment:
- Shipping:
Inventory:1,845
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Product details
Overview
LM4050BIX3-5.0 from Maxim Integrated is a precision 5.000V shunt voltage reference in SC70-3 package, featuring 0.2% initial accuracy, ±15ppm/°C temperature coefficient (max), and 60µA–15mA operating current range. It delivers stable reverse breakdown voltage for ADC/DAC biasing, sensor excitation, and portable power monitoring circuits.
For engineers reviewing the LM4050BIX3-5.0 datasheet, LM4050BIX3-5.0 pinout, LM4050BIX3-5.0 application, or LM4050BIX3-5.0 equivalent, key selection criteria include guaranteed -40°C to +125°C operation, no external capacitor requirement, low 80µVRMS wideband noise (10Hz–10kHz), and SC70 footprint compatibility with space-constrained battery-powered designs.
Technical Context
The LM4050BIX3-5.0 uses bandgap-based shunt regulation to maintain a fixed 5.000V output across its terminals when reverse-biased with 60µA–15mA current. Its internal laser-trimmed resistors ensure 0.2% initial tolerance at +25°C, and dynamic impedance remains ≤1.1Ω at 1mA/120Hz.
Temperature performance is specified over -40°C to +125°C with ±15ppm/°C typical TC and guaranteed 50ppm/°C max over full range. The device tolerates any capacitive load and requires no output capacitor for stability, simplifying layout in high-density systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±10mV at +25°C - precise reference for 12-bit+ data converters |
| Initial Accuracy | ±0.2% (B grade) - enables single-point calibration in production test |
| Temp Coefficient | ±15ppm/°C typical, 50ppm/°C max - supports industrial-grade temperature stability |
| Operating Current | 60µA to 15mA - accommodates micropower sensors and higher-load analog front-ends |
| Output Noise | 80µVRMS (10Hz–10kHz) - low enough for 16-bit SAR ADC reference without filtering |
| Dynamic Impedance | ≤1.1Ω at 1mA/120Hz - minimizes load-induced voltage droop during transient currents |
| Long-Term Stability | 120ppm after 1000h - predictable aging behavior for 10-year system lifetime estimates |
Pinout & Package
LM4050BIX3-5.0 is housed in a 3-pin SC70 surface-mount package (1.8mm × 1.8mm), 50% smaller than SOT23-3. Pin 3 is NC and must be left floating or tied to Pin 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (+) | Anode / Positive Terminal | Connects to regulated output node; sinks current into reference cathode |
| Pin 2 (−) | Cathode / Negative Terminal | Reference ground return; forms shunt path with external series resistor |
| Pin 3 (N.C.) | No Connection | Must remain unconnected or shorted to Pin 2 - not used for signal or thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 package | 1.8mm × 1.8mm footprint saves >50% board area vs. SOT23-3 in wearables and IoT nodes |
| No output capacitor required | Eliminates BOM cost and layout risk while maintaining stability with any capacitive load |
| Wide 60µA–15mA shunt current range | Supports both ultra-low-power sensor interfaces and higher-current analog subsystems |
| Low 80µVRMS wideband noise | Enables direct use as reference for precision 16-bit ADCs without additional filtering |
| Guaranteed -40°C to +125°C operation | Validated for automotive under-hood, industrial PLC, and outdoor equipment deployments |
Applications
| Portable Medical Sensors | Battery Management Systems |
|---|---|
Use Scenario: Reference for thermistor-based temperature sensing in handheld glucose meters and pulse oximeters. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 5.000V excitation for ratiometric bridge measurements. Use Value: 0.2% initial accuracy and ±15ppm/°C TC ensure <0.1°C measurement error across clinical operating range. | Use Scenario: Precision voltage reference for cell voltage monitoring in 3S–4S Li-ion packs. IC Role / Device Role / Timing Role: Stable 5.000V reference for 12-bit ADC inputs measuring individual cell voltages. Use Value: 80µVRMS noise and 1.1Ω dynamic impedance prevent ADC code flicker during load transients. |
| Industrial Process Controllers | Wireless Sensor Nodes |
Use Scenario: Reference for 4–20mA loop transmitter DACs in factory automation I/O modules. IC Role / Device Role / Timing Role: High-stability shunt reference enabling accurate current output scaling over -40°C to +85°C. Use Value: Guaranteed 50ppm/°C max TC and 120ppm long-term drift support 10-year calibration intervals. | Use Scenario: Reference for low-power SAR ADCs in NB-IoT soil moisture and air quality sensors. IC Role / Device Role / Timing Role: Micropower shunt reference operating down to 60µA quiescent current. Use Value: 60µA minimum operating current extends battery life beyond 5 years on CR2032 cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLVH431AIDBZR | Adjustable 1.24V–18V output; 0.5% initial accuracy; 90ppm/°C TC; SOT23-3 | Requires external resistor divider; higher TC limits high-temp precision use | Choose for adjustable output or cost-sensitive non-precision applications |
| REF3050AIDBZR | 5.000V fixed output; 0.2% accuracy; 50ppm/°C TC; 50µA–25mA range; SOT23-3 | Larger SOT23-3 footprint; higher 120µVRMS noise; requires 1µF output capacitor | Choose when SOT23-3 is already standardized and capacitor placement is acceptable |
Compared with TLVH431AIDBZR and REF3050AIDBZR, LM4050BIX3-5.0 offers superior space efficiency (SC70), lower noise (80µVRMS vs. 120µVRMS), and true capacitor-free operation - critical for miniaturized, high-reliability sensor nodes.
Availability
LM4050BIX3-5.0 is available at Aetrix Electronics and suitable for portable medical sensors, battery management systems, and industrial process controllers requiring stable component supply with guaranteed long-term availability.
Supply support for LM4050BIX3-5.0 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The LM4050/LM4051 product line delivers micropower shunt voltage references optimized for space-constrained, battery-operated systems requiring high accuracy and wide temperature operation.
FAQ
What is the guaranteed operating temperature range for LM4050BIX3-5.0?
The LM4050BIX3-5.0 is fully specified and guaranteed over -40°C to +125°C. All electrical parameters-including 5.000V output voltage, 0.2% initial accuracy, and ±15ppm/°C temperature coefficient-are validated across this full industrial temperature range per Maxim's production test protocol.
Does LM4050BIX3-5.0 require an external output capacitor?
No, LM4050BIX3-5.0 does not require an external output capacitor for stability. It is designed to remain stable with any capacitive load, including direct connection to ADC input capacitors or long PCB traces. This eliminates capacitor-related BOM cost, footprint, and reliability concerns in compact designs.
What is the minimum operating current for LM4050BIX3-5.0?
The minimum operating current for LM4050BIX3-5.0 is 60µA at +25°C, with 80µA maximum at +125°C. Maintaining ≥60µA shunt current ensures proper regulation and specified accuracy; below this threshold, output voltage may deviate outside guaranteed limits.
How does the pin configuration of LM4050BIX3-5.0 differ from standard zener diodes?
LM4050BIX3-5.0 uses a 3-pin SC70 package with Pin 1 (+) as anode, Pin 2 (−) as cathode, and Pin 3 (N.C.) unused. Unlike 2-terminal zeners, this 3-pin structure isolates the NC terminal to prevent parasitic coupling and allows unambiguous PCB layout-critical for low-noise precision references.
Can LM4050BIX3-5.0 be used in place of LM4050BEM3-5.0?
LM4050BIX3-5.0 and LM4050BEM3-5.0 share identical electrical specifications (5.000V, 0.2% accuracy, 50ppm/°C TC), but differ in package: SC70-3 vs. SOT23-3. They are functionally interchangeable where board layout permits, though SC70 reduces footprint by 50%. No circuit redesign is needed beyond pad adaptation.
LM4050BIX3-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Bulk
- 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:
- 80µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 80 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
LM4050BIX3-5.0 FAQ
1.How can I place an order for LM4050BIX3-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4050BIX3-5.0 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 LM4050BIX3-5.0 reliable?
The price and inventory of LM4050BIX3-5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4050BIX3-5.0 is usually 5 days.
3.What payment methods are accepted for LM4050BIX3-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4050BIX3-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4050BIX3-5.0?
LM4050BIX3-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4050BIX3-5.0 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 LM4050BIX3-5.0?
For technical support, including LM4050BIX3-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4050BIX3-5.0 requirements.
6.How does Aetrix verify that LM4050BIX3-5.0 is sourced from the original manufacturer or authorized distributors?
All LM4050BIX3-5.0 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 LM4050BIX3-5.0 meets industry standards.
7.What is the process for return or replacement of LM4050BIX3-5.0?
All LM4050BIX3-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4050BIX3-5.0, 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 LM4050BIX3-5.0 part is unused and in its original packaging.
Return procedure for LM4050BIX3-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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