My Inquiry
My Account
Texas Instruments LM4132CMF-3.0
- Part No.:
- LM4132CMF-3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CMF-3.0.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,603
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4132CMF-3.0 from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.0 V output with ±0.2% initial accuracy (C-grade), 10 ppm/°C temperature coefficient (0°C to 85°C), 60 µA quiescent current, and 20 mA output drive capability - used in high-resolution ADC/DAC biasing, portable instrumentation, and automotive sensor signal conditioning.
For engineers reviewing the LM4132CMF-3.0 datasheet, LM4132CMF-3.0 pinout, LM4132CMF-3.0 application, or LM4132CMF-3.0 equivalent, key selection factors include dropout voltage (175 mV at 10 mA), enable-controlled shutdown (3 µA), stability with ceramic capacitors, and SOT-23-5 packaging for space-constrained PCB layouts.
Technical Context
The LM4132CMF-3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed reference performance without laser trimming. It operates as a series reference with internal error amplifier, pass transistor, and enable-controlled bias network.
Unlike shunt references, it draws only 60 µA under load and requires no output capacitor for stability. Its 400 mV minimum input-to-output differential supports operation from 3.4 V input at full 3.0 V output, making it suitable for single-cell Li-ion and dual-cell alkaline systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V nominal, ±0.2% initial accuracy (C grade) - ensures ≤6 mV absolute error at 25°C for 12-bit+ data converters |
| Tempco | 10 ppm/°C (0°C to 85°C), 20 ppm/°C (–40°C to 125°C) - enables <±240 µV drift over industrial temperature range |
| Dropout Voltage | 175 mV at 10 mA load - allows regulation from 3.175 V input, critical for battery-powered systems near end-of-life |
| Supply Current | 60 µA typical, ≤100 µA over –40°C to 125°C - minimizes standby power in always-on sensor nodes |
| Shutdown Current | 3 µA at EN = 0 V - enables ultra-low-power sleep modes in portable test equipment |
| Load Regulation | 25 ppm/mA (0–20 mA) - maintains <±50 µV output shift per mA load change, supporting dynamic analog front-ends |
| Noise (0.1–10 Hz) | 285 µVPP - low enough for 16-bit SAR ADC reference without external filtering |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, surface-mount, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect terminal | Must remain unconnected; floating - no internal connection or function |
| 2 - GND | Analog ground reference | Primary return path for reference output and internal bias; requires low-impedance PCB plane |
| 3 - EN | Enable control input | Active-high logic: ≥65% VIN turns on; ≤35% VIN enters 3 µA shutdown - compatible with 1.8 V/3.3 V GPIO |
| 4 - VIN | Input supply | Accepts 3.4 V to 5.5 V; must be ≥VREF + 400 mV for regulation - decoupling with ≥1 µF ceramic required |
| 5 - VREF | Precision output | 3.0 V regulated source; capable of sourcing up to 20 mA; low-noise node requiring local 100 nF bypass |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed CMOS band-gap | Eliminates post-assembly calibration; achieves 0.2% accuracy and 10 ppm/°C tempco without laser trimming |
| Enable-controlled shutdown | Reduces supply current from 60 µA to 3 µA - extends battery life by >95% during idle periods |
| Capacitor-free stability | Stable with low-ESR ceramic capacitors only on input; no output capacitor needed - saves board space and BOM cost |
| 20 mA output drive | Directly powers ADC reference inputs, op-amp bias networks, or small DACs - avoids external buffer amplifiers |
| AEC-Q100 Grade 1 qualified | Rated for –40°C to +125°C ambient operation - suitable for under-hood automotive sensors and industrial controllers |
Applications
| Portable Data Loggers | Automotive Cabin Sensors |
|---|---|
Use Scenario: Battery-powered environmental monitoring units logging temperature, humidity, and pressure with 16-bit ADCs over multi-year deployments. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for successive-approximation ADC conversion and microcontroller analog peripherals. Use Value: 285 µVPP low-frequency noise and 10 ppm/°C tempco ensure ≤1 LSB error across temperature and battery discharge cycles. |
Use Scenario: Occupant detection, seatbelt status, and HVAC sensor modules in passenger compartments operating from 12 V vehicle supply. IC Role / Device Role / Timing Role: Supplies precision bias voltage to MEMS accelerometers and analog signal conditioners in AEC-Q100-compliant modules. Use Value: Grade 1 qualification (–40°C to +125°C) and 3 µA shutdown mode support cold-cranking and thermal soak compliance. |
| Industrial Process Transmitters | Medical Patient Monitoring |
Use Scenario: 4–20 mA loop-powered field transmitters measuring flow, level, or pressure in chemical plants and refineries. IC Role / Device Role / Timing Role: Generates accurate 3.0 V reference for sigma-delta ADCs and digital isolator biasing in isolated analog front-ends. Use Value: 175 mV dropout enables operation from 3.4 V rail derived from loop supply - maximizes headroom for internal LDOs and isolation barriers. |
Use Scenario: Portable ECG, pulse oximeter, and glucose meter devices requiring FDA-cleared analog signal chains with long-term calibration stability. IC Role / Device Role / Timing Role: Serves as primary voltage reference for medical-grade ADCs and programmable gain amplifiers in battery-operated handheld units. Use Value: 50 ppm long-term stability (1000 hrs) and 75 ppm thermal hysteresis meet IEC 60601-2-27 drift requirements for Class II devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | Fixed 3.0 V, 50 ppm/°C max tempco, 50 µA IQ, no enable pin, SOT-23-3 | Lacks shutdown control and has higher tempco; smaller footprint but lower accuracy | Select when board space is critical and enable functionality is unnecessary |
| ADR3430ARJZ-R7 | 3.0 V, 10 ppm/°C max, 120 µA IQ, no enable, SOT-23-5, ±0.1% initial accuracy (A grade) | Higher quiescent current, no shutdown, tighter initial accuracy but same tempco range | Prefer when highest initial accuracy is required and system-level power budget permits 120 µA active current |
Compared with LM4132CMF-3.0, REF3030AIDBZR trades enable control and tempco for smaller size, while ADR3430ARJZ-R7 offers better initial accuracy at double the supply current and no power-gating capability - making LM4132CMF-3.0 optimal for battery-aware, temperature-stable, and feature-complete designs.
Availability
LM4132CMF-3.0 is available at Aetrix Electronics and suitable for portable instrumentation, automotive cabin sensors, and industrial process transmitters requiring stable component supply with guaranteed long-term availability and automotive-grade traceability.
Supply support for LM4132CMF-3.0 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 engineered to deliver laser-trimmed reference performance using cost-effective CMOS and EEPROM trimming - targeting high-accuracy, low-power, and space-constrained applications in test equipment and automotive electronics.
FAQ
What is the maximum load current supported by the LM4132CMF-3.0?
The LM4132CMF-3.0 delivers up to 20 mA of output current while maintaining regulation within specified accuracy and dropout limits. This capability eliminates the need for external buffer amplifiers in most data acquisition and sensor interface applications. The device sustains this output level across its full operating temperature range (–40°C to +125°C) and input voltage range (3.4 V to 5.5 V).
Does the LM4132CMF-3.0 require an output capacitor for stability?
No, the LM4132CMF-3.0 is internally compensated and stable without an output capacitor - a key differentiator from many competing references. It only requires a minimum 1 µF ceramic capacitor on the VIN pin. This simplifies layout, reduces BOM count, and improves reliability in space-constrained designs where output capacitance may introduce parasitic effects.
What does the 'C' in LM4132CMF-3.0 indicate?
The 'C' denotes the initial accuracy grade: ±0.2% at 25°C. The LM4132 family offers five grades (A to E), with 'A' being the tightest (±0.05%) and 'E' the loosest (±0.5%). The 'C' grade provides optimal balance of precision, cost, and availability for industrial and automotive applications where sub-0.1% accuracy is not mandatory but long-term stability and low tempco remain critical.
Can the LM4132CMF-3.0 operate from a 3.3 V supply?
Yes - the LM4132CMF-3.0 supports input voltages as low as VREF + 400 mV, i.e., 3.4 V minimum. At 3.3 V input, regulation is not guaranteed; however, at 3.4 V or higher (e.g., 3.6 V from a Li-ion cell), it maintains full 3.0 V output with specified accuracy, load regulation, and noise performance. Dropout is 175 mV at 10 mA, confirming viability in single-cell battery systems.
Is the LM4132CMF-3.0 qualified for automotive use?
Yes - the LM4132CMF-3.0 is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2000 V. While the standard LM4132 series meets automotive requirements, note that the LM4132-Q1 variant carries additional automotive-specific documentation and screening - the LM4132CMF-3.0 itself is fully compliant for under-dash and cabin applications.
LM4132CMF-3.0 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):
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132CMF-3.0 FAQ
1.How can I place an order for LM4132CMF-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CMF-3.0 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 LM4132CMF-3.0 reliable?
The price and inventory of LM4132CMF-3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132CMF-3.0 is usually 5 days.
3.What payment methods are accepted for LM4132CMF-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CMF-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132CMF-3.0?
LM4132CMF-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CMF-3.0 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 LM4132CMF-3.0?
For technical support, including LM4132CMF-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CMF-3.0 requirements.
6.How does Aetrix verify that LM4132CMF-3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132CMF-3.0 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 LM4132CMF-3.0 meets industry standards.
7.What is the process for return or replacement of LM4132CMF-3.0?
All LM4132CMF-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CMF-3.0, 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 LM4132CMF-3.0 part is unused and in its original packaging.
Return procedure for LM4132CMF-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132CMF-3.0 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…
