My Inquiry
My Account
Texas Instruments LM4132BQ1MFT3.0
- Part No.:
- LM4132BQ1MFT3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BQ1MFT3.0.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:209
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4132BQ1MFT3.0 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 ±0.1% 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 LM4132BQ1MFT3.0 datasheet, LM4132BQ1MFT3.0 pinout, LM4132BQ1MFT3.0 application, or LM4132BQ1MFT3.0 equivalent, this page provides verified technical context, automotive-grade thermal and ESD specifications, real-world load/line regulation behavior, and validated alternative options for AEC-Q100-compliant designs requiring high stability under wide temperature swings.
Technical Context
The LM4132BQ1MFT3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision without laser trimming. Its internal LDO regulator delivers 3.0 V output with dropout as low as 175 mV at 10 mA, eliminating need for external buffer amplifiers or mandatory output capacitors.
This device operates across –40°C to +125°C ambient, meets AEC-Q100 Grade 1 requirements, and uses a 5-pin SOT-23 package with dedicated EN, VIN, GND, VREF, and NC terminals. Its enable logic thresholds are defined as 35% and 65% of VIN, supporting robust power sequencing in automotive ECUs and industrial controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.1% (B-grade initial accuracy; enables 12-bit ADC biasing within ±1 LSB error) |
| Tempco | 20 ppm/°C (–40°C to +125°C; ensures ≤±0.06% output drift across full automotive range) |
| Dropout Voltage | 175 mV at 10 mA (allows operation from 3.175 V supply; critical for low-voltage battery systems) |
| Supply Current | 60 µA (typical active; enables >1-year runtime on coin-cell in portable test equipment) |
| Shutdown Current | 3 µA (EN = 0 V; reduces standby power in always-on automotive modules) |
| Load Regulation | 25 ppm/mA (0–20 mA; maintains <±50 µV shift per mA load change for precision DAC references) |
| Line Regulation | 70 ppm/V (VREF + 400 mV to 5.5 V; rejects ripple from noisy DC-DC converters) |
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), pin 2 is GND, pin 3 is EN, pin 4 is VIN, and pin 5 is VREF.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No-connect | Must be left floating; no internal connection - avoids unintended parasitic paths in PCB layout |
| Pin 2 (GND) | Ground reference | Primary return path for reference output and internal circuitry; requires low-impedance PCB plane |
| Pin 3 (EN) | Enable control input | Active-high digital input; transitions at 35%–65% of VIN; enables fast power gating in sleep/wake cycles |
| Pin 4 (VIN) | Input supply | Accepts 3.4 V to 5.5 V; minimum headroom 400 mV above VREF ensures regulation integrity |
| Pin 5 (VREF) | Precision output | 3.0 V reference source; capable of sourcing 20 mA; stable with ceramic CIN ≥1 µF (no COUT required) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for –40°C to +125°C ambient operation with HBM ESD ≥±2 kV - suitable for engine bay and transmission control units |
| EEPROM-trimmed tempco | 10 ppm/°C (0°C to 85°C), 20 ppm/°C (–40°C to 125°C); eliminates post-assembly calibration in production test |
| Low-noise output | 285 µVPP (0.1–10 Hz); supports high-resolution 16-bit SAR ADCs without additional filtering |
| Capacitor-free stability | Stable with only 1 µF ceramic CIN; removes BOM cost and board space for output capacitor and associated footprint |
| High PSRR | ≥60 dB (10 Hz–10 kHz); suppresses switching noise from adjacent DC-DC converters in mixed-signal PCBs |
Applications
| Automotive Sensor Signal Conditioning | Portable Data Acquisition |
|---|---|
Use Scenario: Reference for analog front-end of tire pressure monitoring system (TPMS) MCU with integrated 12-bit ADC. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for ratiometric pressure transducer measurement and ADC conversion. Use Value: ±0.1% initial accuracy and 20 ppm/°C tempco ensure <±0.5% total measurement error across –40°C to +105°C vehicle operating range. |
Use Scenario: Battery-powered handheld multimeter with dual-slope ADC and LCD display. IC Role / Device Role / Timing Role: Supplies regulated 3.0 V reference to ADC and microcontroller voltage supervisor. Use Value: 60 µA quiescent current extends alkaline battery life to >18 months; 3 µA shutdown mode enables instant-on functionality. |
| Industrial Process Controller | Medical Patient Monitor |
Use Scenario: 4–20 mA loop-powered transmitter for flow meter in chemical plant. IC Role / Device Role / Timing Role: Precision reference for DAC generating loop current and for internal ADC monitoring supply rail. Use Value: Load regulation of 25 ppm/mA ensures <±25 µV shift during 4–20 mA output swing - maintaining 0.1% loop accuracy. |
Use Scenario: Portable ECG module with 24-bit delta-sigma ADC sampling at 1 kHz. IC Role / Device Role / Timing Role: Low-noise 3.0 V reference for ADC reference input and op-amp biasing. Use Value: 285 µVPP (0.1–10 Hz) noise floor enables <1 µV RMS input-referred noise - meeting IEC 60601-2-27 clinical resolution requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6126AUT30+ | 3.0 V, ±0.06% initial accuracy, 3 ppm/°C tempco, 65 µA IQ, SOT-23-5 | Higher precision and lower tempco; requires 1 µF COUT for stability | Preferred where long-term stability (<15 ppm/1000 hrs) and ultra-low tempco dominate over shutdown capability |
| ADR3430ARJZ-R7 | 3.0 V, ±0.1% initial accuracy, 10 ppm/°C tempco, 120 µA IQ, SOT-23-5, no enable pin | Lacks enable function; higher supply current; tighter tempco spec over 0°C–70°C only | Selected when enable control is unnecessary and lower cost is prioritized over shutdown power savings |
Compared with MAX6126AUT30+ and ADR3430ARJZ-R7, the LM4132BQ1MFT3.0 uniquely combines automotive qualification, integrated enable, capacitor-free operation, and 3 µA shutdown - making it optimal for space-constrained, safety-critical, battery-sensitive automotive and industrial nodes where power sequencing and reliability are non-negotiable.
Availability
LM4132BQ1MFT3.0 is available at Aetrix Electronics and suitable for automotive sensor modules, portable instrumentation, industrial process transmitters, and medical diagnostic devices requiring stable component supply with AEC-Q100 compliance and extended temperature support.
Supply support for LM4132BQ1MFT3.0 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 specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and automotive-grade ICs.
The LM4132 family was designed specifically for high-accuracy, low-power, automotive-qualified voltage references - targeting applications where laser-trimmed performance must be achieved in cost-effective CMOS processes with EEPROM-based calibration.
FAQ
What is the maximum load current supported by the LM4132BQ1MFT3.0?
The LM4132BQ1MFT3.0 supports up to 20 mA of continuous output current while maintaining regulation within specified accuracy limits. This capability eliminates the need for external buffer amplifiers in most precision applications, including driving ADC reference inputs and low-power op-amp bias networks. The device sustains this current across its full operating temperature range of –40°C to +125°C.
Does the LM4132BQ1MFT3.0 require an output capacitor for stability?
No, the LM4132BQ1MFT3.0 is internally compensated and stable without an output capacitor. Only a 1 µF ceramic input capacitor (CIN) is required between VIN and GND. This simplifies layout, reduces BOM count, and improves reliability in space-constrained automotive and portable designs where capacitor aging or microphonics could degrade performance.
What does the "Q1" suffix in LM4132BQ1MFT3.0 signify?
The "Q1" suffix indicates AEC-Q100 qualification for automotive applications, specifically Grade 1 (–40°C to +125°C ambient). The LM4132BQ1MFT3.0 has passed stress testing including HBM ESD ≥±2 kV and thermal cycling, and is manufactured under IATF 16949-compliant processes - confirming suitability for use in powertrain, chassis, and body electronics systems.
How does the enable pin (EN) function on the LM4132BQ1MFT3.0?
The EN pin is an active-high digital control input with thresholds defined at 35% (VIL) and 65% (VIH) of VIN. When pulled low (<35% VIN), the device enters 3 µA shutdown mode; when pulled high (>65% VIN), it enables normal 3.0 V output regulation. This allows precise power sequencing in multi-rail automotive ECUs and enables rapid wake-up in battery-powered instruments.
What is the dropout voltage specification for the LM4132BQ1MFT3.0?
The dropout voltage of the LM4132BQ1MFT3.0 is 175 mV at 10 mA load (typical) and up to 400 mV across –40°C to +125°C. This low dropout enables operation from supplies as low as 3.175 V, making it suitable for single-cell Li-ion (3.0–4.2 V) and 3.3 V rail-powered systems where headroom is constrained - such as in compact motor control feedback circuits.
LM4132BQ1MFT3.0 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:
- ±0.1%
- 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
LM4132BQ1MFT3.0 FAQ
1.How can I place an order for LM4132BQ1MFT3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BQ1MFT3.0 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 LM4132BQ1MFT3.0 reliable?
The price and inventory of LM4132BQ1MFT3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132BQ1MFT3.0 is usually 5 days.
3.What payment methods are accepted for LM4132BQ1MFT3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BQ1MFT3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BQ1MFT3.0?
LM4132BQ1MFT3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BQ1MFT3.0 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 LM4132BQ1MFT3.0?
For technical support, including LM4132BQ1MFT3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BQ1MFT3.0 requirements.
6.How does Aetrix verify that LM4132BQ1MFT3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132BQ1MFT3.0 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 LM4132BQ1MFT3.0 meets industry standards.
7.What is the process for return or replacement of LM4132BQ1MFT3.0?
All LM4132BQ1MFT3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BQ1MFT3.0, 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 LM4132BQ1MFT3.0 part is unused and in its original packaging.
Return procedure for LM4132BQ1MFT3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132BQ1MFT3.0 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
