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Texas Instruments LM4132CQ1MFT3.0
- Part No.:
- LM4132CQ1MFT3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CQ1MFT3.0.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:591
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Product details
Overview
LM4132CQ1MFT3.0 from Texas Instruments is a precision low-dropout (LDO) voltage reference IC in SOT-23-5 package, delivering a stable 3.0 V output with ±0.2% initial accuracy and 20 ppm/°C temperature coefficient over –40°C to +125°C. It features an enable pin for 3 µA shutdown mode, supports up to 20 mA load current, and operates with input voltages as low as VREF + 400 mV - ideal for automotive sensor signal conditioning and battery-powered data acquisition systems.
For engineers reviewing the LM4132CQ1MFT3.0 datasheet, LM4132CQ1MFT3.0 pinout, LM4132CQ1MFT3.0 application, or LM4132CQ1MFT3.0 equivalent, this page provides verified technical context, pin-level design meaning, automotive-grade thermal performance, real-world load regulation behavior (25 ppm/mA), and validated alternative options for AEC-Q100-compliant designs.
Technical Context
The LM4132CQ1MFT3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed reference performance in cost-effective plastic packaging. Its internal architecture eliminates need for output buffer or mandatory output capacitor, unlike conventional LDO references.
It integrates an enable-controlled bias network that reduces quiescent current from 60 µA to 3 µA in shutdown, while maintaining fast turn-on response and stable operation across 10 mA load steps. The device meets AEC-Q100 Grade 1 requirements with HBM ESD rating of ±2000 V and junction temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.2% at 25°C - ensures ADC full-scale alignment within 1 LSB for 12-bit converters without calibration |
| Temperature Coefficient | 20 ppm/°C (–40°C to +125°C) - limits drift to ≤150 ppm over full automotive temperature range |
| Dropout Voltage | 400 mV at 10 mA - enables operation from 3.4 V supply in 3.3 V rail systems with margin |
| Supply Current | 60 µA typical - supports >10-year battery life in always-on monitoring nodes drawing <1 µA average |
| Load Regulation | 25 ppm/mA - maintains output stability under dynamic load changes in servo feedback loops |
| Line Regulation | 70 ppm/V - rejects ripple and variation in noisy DC-DC outputs feeding the reference input |
| Shutdown Current | 3 µA - allows deep-sleep modes in portable test equipment without compromising wake-up latency |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected. Pin 1 is NC (no connect); pins are arranged in standard DBV top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No-connect terminal | Must remain unconnected - floating; no PCB trace or solder mask opening required |
| 2 (GND) | Analog ground reference | Primary return path for reference output and internal bias; requires low-impedance connection to system AGND plane |
| 3 (EN) | Digital enable input | Active-high logic control: VIH ≥ 65% VIN enables output; VIL ≤ 35% VIN forces 3 µA shutdown |
| 4 (VIN) | Input supply rail | Accepts 3.4 V to 5.5 V; must be decoupled with ≥1 µF ceramic capacitor close to pin |
| 5 (VREF) | Precision reference output | 3.0 V source capable of sourcing/sinking ±20 mA; requires CIN only - no COUT needed for stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient operation from –40°C to +125°C with HBM ESD ≥ ±2000 V |
| EEPROM-trimmed CMOS band-gap | Eliminates post-assembly accuracy shift - achieves 0.2% initial tolerance without laser trimming |
| Capacitor-free stability | Stable with low-ESR ceramic input cap only; no output capacitor required for 0–20 mA load step response |
| Low dropout at full load | Delivers rated 3.0 V output with only 400 mV headroom at 10 mA - extends usable battery voltage range |
| Enable-controlled power gating | Reduces supply current from 60 µA to 3 µA without external FET or sequencing circuitry |
Applications
| Automotive Sensor Signal Conditioning | Portable Data Acquisition Front-End |
|---|---|
|
Use Scenario: High-accuracy thermistor or RTD measurement in engine control units under wide temperature cycling. IC Role / Device Role / Timing Role: Provides stable 3.0 V excitation and ADC reference for ratiometric sensing. Use Value: 20 ppm/°C tempco and 0.2% initial accuracy maintain ≤0.1% total error over –40°C to +125°C without calibration. |
Use Scenario: Handheld multimeter or field calibrator requiring long-term stability and low power. IC Role / Device Role / Timing Role: Precision reference for 16-bit SAR ADC and DAC in battery-operated instrumentation. Use Value: 60 µA quiescent current and 3 µA shutdown extend 2×AA battery life beyond 2 years in sleep mode. |
| Industrial Process Controller I/O Module | Battery Charger Voltage Regulation |
|
Use Scenario: Analog input channel in PLC analog module interfacing 4–20 mA transmitters. IC Role / Device Role / Timing Role: Reference for isolated ΣΔ ADC measuring loop current with galvanic isolation. Use Value: Load regulation of 25 ppm/mA ensures consistent 16-bit resolution across full 0–20 mA range. |
Use Scenario: Voltage setpoint generation in Li-ion charger IC feedback loop for ±1% charge termination. IC Role / Device Role / Timing Role: Stable 3.0 V reference for op-amp comparator comparing battery voltage to threshold. Use Value: Dropout of 400 mV allows direct use of 3.7 V nominal Li-ion cell as supply during charging phase. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4132AMF3.0 | Higher grade: ±0.05% initial accuracy, 10 ppm/°C tempco (0°C to 85°C), same SOT-23-5 package | Required for metrology-grade calibration equipment where 12-bit+ linearity must be guaranteed without trimming | Select when absolute initial accuracy and low-tempco over commercial range outweigh cost premium |
| MAX6126AASA30+ | ±0.06% initial accuracy, 3 ppm/°C tempco, SO-8 package, 50 µA supply current, no enable pin | Used in high-stability lab instruments where ultra-low drift dominates over shutdown capability and footprint | Choose when lowest possible long-term drift and thermal hysteresis are critical, and board space allows SO-8 |
Compared with LM4132CQ1MFT3.0, LM4132AMF3.0 improves initial accuracy by 4× but lacks automotive qualification; MAX6126AASA30+ offers superior tempco and stability but sacrifices enable functionality and increases PCB area by 3× - making LM4132CQ1MFT3.0 optimal for cost-sensitive, space-constrained automotive and industrial modules requiring qualified shutdown control.
Availability
LM4132CQ1MFT3.0 is available at Aetrix Electronics and suitable for automotive sensor modules, portable test equipment, industrial I/O systems, and battery management subsystems requiring stable component supply with AEC-Q100 compliance and extended temperature support.
Supply support for LM4132CQ1MFT3.0 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 company headquartered in Dallas, Texas, designing and manufacturing analog and embedded processing chips for industrial, automotive, and communications markets.
The LM4132 family was developed to deliver laser-trimmed reference performance using programmable CMOS technology - specifically targeting automotive and industrial applications needing high accuracy, low power, and robust temperature operation in small packages.
FAQ
What is the maximum input voltage for LM4132CQ1MFT3.0?
The absolute maximum input voltage for LM4132CQ1MFT3.0 is 6 V, but the recommended operating maximum is 5.5 V. Operation above 5.5 V risks exceeding absolute maximum ratings and may degrade long-term reliability. The device functions correctly down to VIN = VREF + 400 mV (i.e., 3.4 V), making it suitable for single-cell Li-ion or regulated 3.3 V supply rails. Always include a ≥1 µF ceramic capacitor between VIN and GND per TI layout guidelines.
Does LM4132CQ1MFT3.0 require an output capacitor for stability?
No, LM4132CQ1MFT3.0 does not require an output capacitor for stability - it is internally compensated and remains stable driving capacitive loads up to 10 nF. Unlike many voltage references, it eliminates the need for COUT, reducing BOM count and PCB area. Only the input capacitor (CIN ≥ 1 µF ceramic) is mandatory. This feature simplifies layout in space-constrained automotive modules and portable instrumentation where board real estate is limited.
Is LM4132CQ1MFT3.0 qualified for automotive applications?
Yes, LM4132CQ1MFT3.0 is AEC-Q100 qualified for Grade 1 (–40°C to +125°C ambient), with documented HBM ESD rating of ±2000 V and full characterization across the automotive temperature range. It is explicitly designated as the "Q1" variant in the LM4132 family, confirming its suitability for engine control units, ADAS sensors, and body electronics where reliability under thermal cycling and vibration is mandatory.
What is the shutdown current of LM4132CQ1MFT3.0?
The shutdown current of LM4132CQ1MFT3.0 is 3 µA typical at 25°C, with a maximum of 7 µA over –40°C to +125°C. This is achieved by pulling the EN pin low (≤35% of VIN). The device exits shutdown in <10 µs, enabling rapid wake-up in duty-cycled systems like wireless sensor nodes. This ultra-low shutdown current directly enables multi-year battery life in always-monitoring automotive diagnostic tools without compromising responsiveness.
Can LM4132CQ1MFT3.0 drive a 20 mA load continuously?
Yes, LM4132CQ1MFT3.0 is specified to source and sink up to 20 mA continuously while maintaining output voltage regulation within datasheet limits. At 20 mA load and 25°C, dropout remains ≤400 mV, and load regulation is ≤25 ppm/mA - ensuring ≤500 ppm (0.05%) deviation from nominal 3.0 V. Thermal derating applies above 85°C ambient; full 20 mA operation is supported across the full –40°C to +125°C range with proper PCB copper pour per TI's thermal guidelines.
LM4132CQ1MFT3.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 285µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.4V ~ 5.5V
- Current - Supply:
- 100µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132CQ1MFT3.0 FAQ
1.How can I place an order for LM4132CQ1MFT3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CQ1MFT3.0 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 LM4132CQ1MFT3.0 reliable?
The price and inventory of LM4132CQ1MFT3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132CQ1MFT3.0 is usually 5 days.
3.What payment methods are accepted for LM4132CQ1MFT3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CQ1MFT3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132CQ1MFT3.0?
LM4132CQ1MFT3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CQ1MFT3.0 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 LM4132CQ1MFT3.0?
For technical support, including LM4132CQ1MFT3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CQ1MFT3.0 requirements.
6.How does Aetrix verify that LM4132CQ1MFT3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132CQ1MFT3.0 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 LM4132CQ1MFT3.0 meets industry standards.
7.What is the process for return or replacement of LM4132CQ1MFT3.0?
All LM4132CQ1MFT3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CQ1MFT3.0, 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 LM4132CQ1MFT3.0 part is unused and in its original packaging.
Return procedure for LM4132CQ1MFT3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132CQ1MFT3.0 Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AN431AN-ATRG1
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LM4040CYM3-2.5-TR
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LM4040EIM3-2.5/NOPB
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AZ431LBNTR-G1
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LM4040D20IDBZR
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LM4041DIM3-ADJ/NOPB
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LM4040DIM3X-2.5/NOPB
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LM4040DIM3-2.5/NOPB
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AZ431LANTR-G1
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