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Texas Instruments LM4132BMF-3.0
- Part No.:
- LM4132BMF-3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BMF-3.0.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,682
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Product details
Overview
LM4132BMF-3.0 from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.0 V output with 0.1% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current. It operates from VIN = VREF + 400 mV to 5.5 V, supports up to 20 mA load, and features an enable pin for 3 µA shutdown mode - ideal for battery-powered instrumentation and data acquisition systems.
For engineers reviewing the LM4132BMF-3.0 datasheet, LM4132BMF-3.0 pinout, LM4132BMF-3.0 application, or LM4132BMF-3.0 equivalent, key selection criteria include its SOT-23-5 package, AEC-Q100 Grade B qualification (–40°C to +125°C), dropout voltage of 175 mV at 10 mA, line regulation of 70 ppm/V, and compatibility with low-ESR ceramic capacitors without requiring an output buffer.
Technical Context
The LM4132BMF-3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision in cost-effective plastic packaging. Its enable-controlled shutdown and internal LDO regulator eliminate need for external pass devices or output capacitors in most applications.
This device functions as a two-terminal series reference with five-pin SOT-23 configuration: VIN, GND, EN, VREF, and N/C. It achieves stability without COUT by leveraging low-output-impedance design and internal compensation - distinguishing it from traditional shunt references and unbuffered band-gap ICs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.1% (Grade B, 25°C); enables accurate ADC/DAC biasing and sensor excitation |
| Initial Accuracy | ±0.1% (B grade); eliminates need for system-level trimming in portable test equipment |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures ≤240 ppm drift over industrial range, critical for precision measurement |
| Dropout Voltage | 175 mV at 10 mA load; allows operation from 3.175 V input - essential for single-cell Li-ion or 3.3 V rail margin |
| Quiescent Current | 60 µA active / 3 µA shutdown; extends battery life in always-on monitoring nodes |
| Load Capability | 20 mA max output; drives multiple op-amp references or SAR ADC reference inputs directly |
| Noise (0.1–10 Hz) | 285 µVPP; supports 16-bit+ resolution in low-frequency data acquisition |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 1.0 mm height, gull-wing leads. RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect | Must remain floating; no internal connection - avoids unintended parasitic paths |
| 2 - GND | Ground reference | Primary return path for reference output and supply current; requires low-impedance PCB plane |
| 3 - EN | Enable control input | Active-high logic: VIH ≥ 65% VIN enables output; VIL ≤ 35% VIN enters 3 µA shutdown |
| 4 - VIN | Input supply | Accepts 3.4 V to 5.5 V; minimum headroom = 400 mV above VREF for regulation |
| 5 - VREF | Precision output | Low-impedance 3.0 V source; stable with 1 µF ceramic input cap (CIN required), no COUT needed |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed CMOS band-gap | Enables factory calibration of curvature and tempco - achieves laser-trimmed accuracy in plastic SOT-23 |
| Enable-controlled shutdown | Reduces supply current to 3 µA, enabling rapid power cycling in energy-constrained IoT sensors |
| No output capacitor required | Eliminates COUT and associated board space, BOM cost, and aging-related drift in portable medical devices |
| Stable with low-ESR ceramics | Supports 0402/0603 X7R/X5R capacitors - simplifies layout and improves reliability vs. tantalum alternatives |
| AEC-Q100 Grade B qualified | Validated for automotive ambient range (–40°C to +125°C) and HBM ESD level 2 (±2 kV) |
Applications
| Portable Data Loggers | Automotive Battery Monitoring |
|---|---|
|
Use Scenario: Continuous voltage logging of 12 V lead-acid or 48 V EV batteries using ultra-low-power microcontrollers and 16-bit ADCs. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for ADC conversion and sensor signal conditioning under varying input voltage and temperature. Use Value: 10 ppm/°C tempco and 285 µVPP noise ensure <±0.01% measurement error across –40°C to +85°C operating range. |
Use Scenario: Real-time cell voltage monitoring in BMS modules where space, power, and thermal robustness are constrained. IC Role / Device Role / Timing Role: Supplies regulated 3.0 V reference to isolated analog front-ends interfacing with high-side current shunts and thermistors. Use Value: AEC-Q100 Grade B qualification and 20 mA drive capability allow direct replacement of discrete reference + buffer solutions. |
| Handheld Test Meters | Industrial Process Transmitters |
|
Use Scenario: Battery-powered multimeters requiring high-accuracy DC voltage and resistance measurements over 1000-hour field use. IC Role / Device Role / Timing Role: Serves as primary reference for auto-ranging ADC and digital calibration engine. Use Value: 50 ppm long-term stability (1000 hrs) and 75 ppm thermal hysteresis minimize recalibration frequency in field-deployed units. |
Use Scenario: 4–20 mA loop-powered transmitters measuring pressure, flow, or temperature in hazardous industrial zones. IC Role / Device Role / Timing Role: Generates precise 3.0 V bias for bridge sensors and low-noise instrumentation amplifiers within tight power budget. Use Value: 60 µA quiescent current and 400 mV dropout enable operation from 3.4 V loop supply while maintaining 16-bit linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | Fixed 3.0 V, 0.1% initial accuracy, 50 ppm/°C tempco, 50 µA IQ, SOT-23-3, no enable pin | Lacks shutdown control and has higher tempco; suitable only where enable functionality is unused | Select when board space is critical (3-pin vs. 5-pin) and shutdown is unnecessary |
| ADR3430ARJZ-R7 | 3.0 V, 0.1% accuracy, 10 ppm/°C tempco, 60 µA IQ, SOT-23-5, no enable pin, ±10 ppm/°C max over –40°C to +125°C | Same tempco spec but no enable function; tighter tempco guarantee over full automotive range | Prefer for automotive applications requiring guaranteed 10 ppm/°C over –40°C to +125°C without enable need |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the LM4132BMF-3.0 uniquely combines Grade B precision, integrated enable, and SOT-23-5 packaging - making it optimal for space-constrained, battery-aware systems requiring dynamic power control without sacrificing accuracy or thermal stability.
Availability
LM4132BMF-3.0 is available at Aetrix Electronics and suitable for portable instrumentation, automotive battery monitoring, and industrial process transmitters requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LM4132BMF-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 specializing in analog and embedded processing technologies, with leadership in precision analog ICs and automotive-grade components.
The LM4132 family was designed to deliver laser-trimmed voltage reference performance in cost-effective CMOS SOT-23 packages - targeting high-accuracy, low-power, and space-constrained applications in test equipment, industrial sensing, and automotive systems.
FAQ
What is the maximum input voltage for LM4132BMF-3.0?
The LM4132BMF-3.0 supports a maximum input voltage of 5.5 V across its specified operating temperature range. Exceeding this limit risks permanent damage, as defined in the Absolute Maximum Ratings table. Operation above 5.5 V violates the device's safe operating area and may trigger latch-up or junction breakdown.
Does LM4132BMF-3.0 require an output capacitor (COUT)?
No, the LM4132BMF-3.0 does not require an output capacitor for stability. Its internal compensation and low-output-impedance design allow direct connection to ADC reference inputs or op-amp bias networks. A 1 µF ceramic input capacitor (CIN) is mandatory between VIN and GND to suppress supply noise and ensure transient response integrity.
What is the dropout voltage specification for LM4132BMF-3.0 at 20 mA load?
The LM4132BMF-3.0 specifies a dropout voltage of 400 mV at –40°C to +125°C for loads up to 20 mA. At 25°C and 10 mA load, the typical dropout is 175 mV. This means the device maintains regulation as long as VIN ≥ 3.4 V at full load and elevated temperature - critical for low-voltage battery systems.
Is LM4132BMF-3.0 qualified for automotive applications?
Yes, the LM4132BMF-3.0 is AEC-Q100 Grade B qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2 kV. It meets automotive reliability requirements for non-safety-critical subsystems including battery monitoring, cabin sensors, and infotainment power management - confirmed in TI's official LM4132-Q1 documentation.
How does the enable pin (EN) function on LM4132BMF-3.0?
The EN pin on LM4132BMF-3.0 is an active-high digital control input. When pulled to ≥65% of VIN, the device operates normally; when held ≤35% of VIN, it enters shutdown mode drawing only 3 µA. No external pull-up/down is required - the pin is internally biased and compatible with standard GPIO logic levels.
LM4132BMF-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:
- ±0.1%
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132BMF-3.0 FAQ
1.How can I place an order for LM4132BMF-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BMF-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 LM4132BMF-3.0 reliable?
The price and inventory of LM4132BMF-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 LM4132BMF-3.0 is usually 5 days.
3.What payment methods are accepted for LM4132BMF-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BMF-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BMF-3.0?
LM4132BMF-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BMF-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 LM4132BMF-3.0?
For technical support, including LM4132BMF-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BMF-3.0 requirements.
6.How does Aetrix verify that LM4132BMF-3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132BMF-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 LM4132BMF-3.0 meets industry standards.
7.What is the process for return or replacement of LM4132BMF-3.0?
All LM4132BMF-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BMF-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 LM4132BMF-3.0 part is unused and in its original packaging.
Return procedure for LM4132BMF-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132BMF-3.0 Tags
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