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Texas Instruments LM4130AIM5X-2.5
- Part No.:
- LM4130AIM5X-2.5
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4130AIM5X-2.5.pdf
- Description:
- IC VREF SERIES 0.05% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
LM4130AIM5X-2.5 from Texas Instruments is a precision micropower low-dropout voltage reference IC delivering 2.500 V output with ±0.05% initial accuracy, 10 ppm/°C temperature coefficient, and ≤275 mV dropout at 10 mA-designed for high-stability analog signal chains in portable instrumentation and battery-powered data acquisition systems.
For engineers reviewing the LM4130AIM5X-2.5 datasheet, LM4130AIM5X-2.5 pinout, LM4130AIM5X-2.5 application, or LM4130AIM5X-2.5 equivalent, key selection criteria include guaranteed −40°C to +85°C full-accuracy operation, capacitive-load stability up to 100 µF without external buffer, and SOT23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The LM4130AIM5X-2.5 uses EEPROM-trimmed CMOS bandgap architecture to correct curvature, tempco, and initial accuracy at package level-enabling laser-trimmed performance without laser trimming. Its internal correction eliminates post-assembly drift compensation typically required in plastic-packaged references.
It operates as a series (shunt-independent) reference with no mandatory output capacitor, supports load currents up to 20 mA, and maintains <1 Ω output impedance across temperature and load-making it suitable for direct ADC reference, precision regulator feedback, and sensor excitation circuits without buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±0.05% (ensured over −40°C to +85°C; enables 16-bit ADC reference with <1 LSB error) |
| Tempco | 10 ppm/°C max (Box method; ensures <±200 µV drift over full industrial range) |
| Dropout Voltage | ≤275 mV @ 10 mA (allows operation from 2.775 V supply; critical for single-cell Li-ion or coin-cell systems) |
| Supply Current | ≤75 μA (enables >10-year battery life in 10 µA sleep-mode systems) |
| Load Regulation | 25–60 ppm/mA (translates to <150 µV change per mA load shift; supports dynamic sensor biasing) |
| Output Noise | 150 μVPP (0.1 Hz–10 Hz; meets low-noise precision amplifier and sigma-delta ADC requirements) |
| Capacitive Load Stability | 0–100 µF (eliminates need for output buffer; simplifies layout and reduces BOM count) |
Pinout & Package
SOT23-5 surface-mount package (2.92 mm × 1.6 mm × 1.0 mm), tape-and-reel packaging for automated assembly. Pin 1 and Pin 3 are internally terminated no-connects.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | No Connection (NC) | Internally terminated; must remain unconnected on PCB |
| Pin 2 | Ground | Reference return path; requires low-impedance connection to system ground plane |
| Pin 3 | No Connection (NC) | Internally terminated; must remain unconnected on PCB |
| Pin 4 | Input Supply (VIN) | Accepts 2.775 V to 5.5 V; bypass with 0.1 µF recommended for noise-sensitive applications |
| Pin 5 | Reference Output (VREF) | 2.500 V source capable of sourcing 20 mA; stable without output capacitor |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-based curvature & tempco correction | Enables post-assembly calibration in plastic SOT23-5 package-overcoming typical die-attach-induced drift |
| Capacitor-free operation | Eliminates mandatory output capacitor and buffer amplifier, reducing component count and board area |
| Low quiescent current | 75 μA maximum ensures minimal impact on battery capacity in always-on sensing nodes |
| Extended temperature operation | Full 2.500 V accuracy specified from −40°C to +85°C-suitable for industrial and automotive under-hood environments |
| High load drive capability | 20 mA output current supports direct driving of op-amp inputs, ADC references, and small MOSFET gates |
Applications
| Portable Data Loggers | Precision Sensor Signal Conditioning |
|---|---|
Use Scenario: Battery-powered environmental monitoring node logging temperature, humidity, and pressure at 1-second intervals for 5+ years. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADC and low-power microcontroller VREF input. Use Value: 75 μA supply current and 2.500 V ±0.05% accuracy ensure <0.01% total measurement uncertainty over full temperature range without recalibration. | Use Scenario: Industrial pressure transducer module requiring ratiometric excitation and digitization in harsh factory environments. IC Role / Device Role / Timing Role: Stable excitation source for bridge sensors and reference for instrumentation amplifier gain-setting resistors. Use Value: 10 ppm/°C tempco and <150 µVPP noise maintain sub-0.1% sensor linearity error across −25°C to +70°C ambient. |
| Medical Point-of-Care Analyzers | Automotive Battery Management Systems |
Use Scenario: Handheld blood glucose meter using electrochemical strip detection with dual-slope ADC conversion. IC Role / Device Role / Timing Role: Precision 2.500 V reference for ADC and analog front-end biasing network. Use Value: Dropout ≤275 mV allows operation from declining alkaline cell (down to 2.8 V), sustaining accuracy through full battery discharge cycle. | Use Scenario: Cell voltage monitoring IC in 12-V lead-acid or 48-V mild-hybrid battery pack with distributed sensing nodes. IC Role / Device Role / Timing Role: Reference for high-side current sense amplifier and ADC used in Coulomb counting. Use Value: Stable 2.500 V output with <1 Ω impedance ensures accurate current measurement despite PCB trace resistance and thermal gradients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | 2.5 V, ±0.2% initial accuracy, 50 ppm/°C tempco, 50 μA supply current, SOT23-3 package | Lacks EEPROM trim; lower accuracy grade; no NC pins; smaller footprint but no VIN/VREF separation | Lower cost where ±0.2% accuracy suffices and board layout cannot accommodate SOT23-5 pin spacing |
| ADR3425ARJZ-R7 | 2.5 V, ±0.1% initial accuracy, 10 ppm/°C tempco, 120 μA supply current, SOT23-5 package | Higher supply current; no guaranteed 125°C operation; different pinout (VOUT, GND, VIN, NC, NC) | Preferred when tighter long-term stability (<30 ppm/1000 hrs) is required and higher quiescent current is acceptable |
Compared with REF3025AIDBZR and ADR3425ARJZ-R7, the LM4130AIM5X-2.5 uniquely combines ±0.05% accuracy, 10 ppm/°C tempco, and 75 μA supply current in a 5-pin SOT23 with separated VIN/VREF pins-enabling superior noise isolation and layout flexibility in high-precision, low-power designs.
Availability
LM4130AIM5X-2.5 is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply with long-lifecycle support.
Supply support for LM4130AIM5X-2.5 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal processing technologies.
The LM4130 family was designed as a cost-effective, high-accuracy alternative to laser-trimmed bipolar references-targeting space- and power-constrained applications where precision voltage stability is critical.
FAQ
What is the operating temperature range for LM4130AIM5X-2.5?
The LM4130AIM5X-2.5 is fully specified for operation from −40°C to +85°C, with all key parameters-including output voltage accuracy, tempco, and dropout-guaranteed across this range. Extended operation to +125°C is possible but not characterized for full accuracy; design margins should be applied for such use cases. The LM4130AIM5X-2.5 datasheet confirms these limits in its Operating Range table.
Does LM4130AIM5X-2.5 require an output capacitor?
No, the LM4130AIM5X-2.5 does not require an output capacitor and remains stable with 0 µF to 100 µF capacitive loads. An optional output capacitor improves transient response during large load steps but increases turn-on time. This capacitor-free capability eliminates buffer amplifiers and reduces BOM count-key for compact, low-power designs using the LM4130AIM5X-2.5.
What is the meaning of the 'A' grade in LM4130AIM5X-2.5?
The 'A' in LM4130AIM5X-2.5 denotes the highest accuracy grade: ±0.05% initial output voltage tolerance and ≤10 ppm/°C temperature coefficient over −40°C to +85°C. This grade is achieved via EEPROM trimming of curvature, tempco, and offset-distinguishing it from lower grades (B–E) with relaxed tolerances. The LM4130AIM5X-2.5 is the only variant in the family meeting this specification at 2.500 V.
Can LM4130AIM5X-2.5 drive a 20 mA load continuously?
Yes, the LM4130AIM5X-2.5 is rated for continuous 20 mA output current, with output voltage maintained within specification under that load. Dropout voltage remains ≤275 mV at 10 mA, and thermal limits (TJMAX = 125°C, θJ-A = 220°C/W) allow safe operation at 20 mA with adequate PCB copper. The LM4130AIM5X-2.5 datasheet specifies this in Absolute Maximum Ratings and Electrical Characteristics tables.
What is the purpose of Pins 1 and 3 on LM4130AIM5X-2.5?
Pins 1 and 3 of the LM4130AIM5X-2.5 are No Connection (NC) terminals-internally terminated and electrically isolated from the die. They must remain unconnected on the PCB. These pins exist for mechanical symmetry and package standardization in the SOT23-5 outline; routing traces or placing vias to them may introduce noise coupling or parasitic capacitance. The LM4130AIM5X-2.5 pinout diagram explicitly labels both as NC.
LM4130AIM5X-2.5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 150µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 2.9V ~ 6V
- Current - Supply:
- 90µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4130AIM5X-2.5 FAQ
1.How can I place an order for LM4130AIM5X-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4130AIM5X-2.5 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 LM4130AIM5X-2.5 reliable?
The price and inventory of LM4130AIM5X-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4130AIM5X-2.5 is usually 5 days.
3.What payment methods are accepted for LM4130AIM5X-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4130AIM5X-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4130AIM5X-2.5?
LM4130AIM5X-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4130AIM5X-2.5 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 LM4130AIM5X-2.5?
For technical support, including LM4130AIM5X-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4130AIM5X-2.5 requirements.
6.How does Aetrix verify that LM4130AIM5X-2.5 is sourced from the original manufacturer or authorized distributors?
All LM4130AIM5X-2.5 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 LM4130AIM5X-2.5 meets industry standards.
7.What is the process for return or replacement of LM4130AIM5X-2.5?
All LM4130AIM5X-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with LM4130AIM5X-2.5, 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 LM4130AIM5X-2.5 part is unused and in its original packaging.
Return procedure for LM4130AIM5X-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4130AIM5X-2.5 Tags
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