My Inquiry
My Account
Texas Instruments LM4132BQ1MFR2.5
- Part No.:
- LM4132BQ1MFR2.5
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BQ1MFR2.5.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,959
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4132BQ1MFR2.5 from Texas Instruments is a precision low-dropout (LDO) voltage reference IC delivering a stable 2.5 V output with 0.1% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current. It features an enable pin for 3 µA shutdown mode and supports up to 20 mA load current - used in high-accuracy ADC/DAC biasing, automotive sensor signal conditioning, and battery-powered instrumentation.
For engineers reviewing the LM4132BQ1MFR2.5 datasheet, LM4132BQ1MFR2.5 pinout, LM4132BQ1MFR2.5 application, or LM4132BQ1MFR2.5 equivalent, key selection criteria include automotive-grade qualification (AEC-Q100 Grade 1), SOT-23-5 package compatibility, dropout voltage ≤400 mV at 10 mA, stability with ceramic capacitors, and absence of required output buffer or capacitor.
Technical Context
The LM4132BQ1MFR2.5 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 LDO regulator eliminates need for external output capacitance while maintaining 0.5% output accuracy across input voltages from 2.9 V to 5.5 V.
It operates in two functional modes: active regulation (EN ≥65% VIN) and ultra-low-power shutdown (EN ≤35% VIN). The device achieves thermal hysteresis of 75 ppm and long-term stability of 50 ppm over 1000 hours - critical for calibration-critical systems requiring minimal drift over time and temperature cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±0.1% (B-grade initial accuracy at 25°C) |
| Tempco | 10 ppm/°C (0°C to 85°C); enables <±0.25 mV drift over industrial range |
| Quiescent Current | 60 µA (active mode); allows >1-year battery life in 10 µA-systems |
| Shutdown Current | 3 µA (EN = 0 V); reduces standby power by 20× vs active mode |
| Dropout Voltage | 175 mV (typical at 10 mA); supports operation down to VIN = 2.675 V |
| Load Regulation | 25 ppm/mA (0–20 mA); maintains <50 µV error across full load range |
| Noise (0.1–10 Hz) | 240 µVPP; suitable for 16-bit+ data acquisition without external filtering |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 1.0 mm max height, gull-wing leads. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect | Must remain unconnected; no internal connection or function |
| 2 - GND | Ground reference | Primary return path for reference output and supply current |
| 3 - EN | Enable control input | Active-high logic; VIH ≥65% VIN, VIL ≤35% VIN; controls shutdown state |
| 4 - VIN | Input supply | Accepts 2.9 V to 5.5 V; must be ≥VREF + 400 mV for regulation |
| 5 - VREF | Precision output | 2.5 V reference source; capable of sourcing up to 20 mA |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Rated for –40°C to +125°C ambient; validated for automotive ECU and ADAS sensor modules |
| EEPROM-trimmed band-gap | Eliminates assembly-induced shifts; achieves 0.1% accuracy without laser trimming |
| No output capacitor required | Stable with 0 µF COUT; saves PCB area and BOM cost in space-constrained designs |
| Low-noise 2.5 V reference | 240 µVPP (0.1–10 Hz); meets noise floor requirements for 16-bit SAR ADCs |
| Ultra-low shutdown current | 3 µA max; enables >10-year shelf life in always-on battery-backed systems |
Applications
| Automotive Sensor Signal Conditioning | Portable Data Acquisition |
|---|---|
Use Scenario: Biasing bridge sensors (e.g., pressure, temperature) in engine control units under wide temperature swings. IC Role / Device Role / Timing Role: Provides stable excitation voltage and ADC reference for ratiometric measurement. Use Value: 10 ppm/°C tempco ensures <±0.3 mV error over –40°C to +125°C, eliminating recalibration. |
Use Scenario: Powering 16-bit ADCs in handheld multimeters and field test equipment. IC Role / Device Role / Timing Role: Precision reference for analog front-end; enabled only during sampling to conserve battery. Use Value: 3 µA shutdown current extends 2×AA battery life to >2 years at 1 sample/sec duty cycle. |
| Industrial Process Controller | Battery Charger Voltage Reference |
Use Scenario: Setting accurate current limits and output voltage in programmable DC power supplies. IC Role / Device Role / Timing Role: Reference for DAC-controlled feedback loop in isolated SMPS. Use Value: 20 mA drive capability eliminates need for external buffer op-amp, reducing component count. |
Use Scenario: Regulating constant-voltage stage in Li-ion charger ICs for medical wearables. IC Role / Device Role / Timing Role: Stable 2.5 V reference for voltage-sense amplifier in charge termination circuit. Use Value: 0.1% initial accuracy ensures ±12.5 mV tolerance on 12.5 V charging rail, meeting IEC 62368 safety margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6126AASA25+ | 2.5 V, 0.06% initial accuracy, 3 ppm/°C tempco, SO-8 package, no enable pin | Higher precision but larger footprint; requires external enable circuitry for shutdown | Choose when ultra-low tempco is mandatory and board space permits SO-8; avoid if enable control or SOT-23 fit is required |
| ADR3425ARJZ-R7 | 2.5 V, 0.1% initial accuracy, 10 ppm/°C tempco, SOT-23-5, no shutdown mode | Same grade and package, but lacks enable pin - draws 60 µA continuously | Choose when system-level enable control is unavailable or always-on operation is acceptable |
Compared with MAX6126AASA25+, LM4132BQ1MFR2.5 offers integrated enable and smaller SOT-23-5 footprint at the cost of slightly higher tempco; compared with ADR3425ARJZ-R7, it adds 3 µA shutdown capability without increasing size or cost.
Availability
LM4132BQ1MFR2.5 is available at Aetrix Electronics and suitable for automotive sensor modules, portable instrumentation, industrial process controllers, and battery-charger reference circuits requiring stable component supply with AEC-Q100 compliance and long-lifecycle support.
Supply support for LM4132BQ1MFR2.5 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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision analog ICs and automotive-qualified components.
The LM4132 family was designed to deliver laser-trimmed reference performance using cost-effective CMOS and EEPROM trimming - targeting high-accuracy, low-power, and automotive-grade applications where stability, small size, and reliability are critical.
FAQ
What is the operating temperature range for LM4132BQ1MFR2.5?
The LM4132BQ1MFR2.5 is qualified per AEC-Q100 Grade 1, supporting continuous operation from –40°C to +125°C ambient temperature. This rating applies to the full electrical specification including 0.1% initial accuracy and 10 ppm/°C tempco (0°C to 85°C), making it suitable for under-hood automotive environments and industrial control cabinets without derating.
Does LM4132BQ1MFR2.5 require an output capacitor for stability?
No, LM4132BQ1MFR2.5 is internally compensated and stable with 0 µF output capacitance. Unlike many references, it does not require an external COUT for phase margin - though a 0.1 µF ceramic capacitor may be added to reduce high-frequency noise. This eliminates BOM cost and layout constraints in space-sensitive applications.
What is the minimum input voltage needed for LM4132BQ1MFR2.5 to regulate at 2.5 V?
The minimum input voltage is VREF + dropout voltage = 2.5 V + 175 mV (typical) = 2.675 V. Per datasheet specifications, regulation is guaranteed down to VIN = VREF + 400 mV (2.9 V) across –40°C to +125°C and 10 mA load, ensuring robust start-up and brownout immunity in battery-powered systems.
How does the enable pin of LM4132BQ1MFR2.5 function?
The EN pin is a logic-controlled input: device enters active regulation when EN ≥65% of VIN, and shuts down to 3 µA when EN ≤35% of VIN. Hysteresis between thresholds prevents oscillation near switching points. No pull-up/down resistor is required - direct MCU GPIO connection suffices for precise power sequencing.
Is LM4132BQ1MFR2.5 pin-compatible with other LM4132 variants?
Yes, all LM4132 and LM4132-Q1 variants (including LM4132AQ1MFR2.5, LM4132CQ1MFR2.5, etc.) share identical SOT-23-5 (DBV) pinout and footprint. Only the output voltage and grade (A–E) differ - allowing drop-in replacement within the same voltage option when upgrading or downgrading accuracy/tempco requirements.
LM4132BQ1MFR2.5 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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 240µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 2.9V ~ 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
LM4132BQ1MFR2.5 FAQ
1.How can I place an order for LM4132BQ1MFR2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BQ1MFR2.5 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 LM4132BQ1MFR2.5 reliable?
The price and inventory of LM4132BQ1MFR2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132BQ1MFR2.5 is usually 5 days.
3.What payment methods are accepted for LM4132BQ1MFR2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BQ1MFR2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BQ1MFR2.5?
LM4132BQ1MFR2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BQ1MFR2.5 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 LM4132BQ1MFR2.5?
For technical support, including LM4132BQ1MFR2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BQ1MFR2.5 requirements.
6.How does Aetrix verify that LM4132BQ1MFR2.5 is sourced from the original manufacturer or authorized distributors?
All LM4132BQ1MFR2.5 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 LM4132BQ1MFR2.5 meets industry standards.
7.What is the process for return or replacement of LM4132BQ1MFR2.5?
All LM4132BQ1MFR2.5 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BQ1MFR2.5, 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 LM4132BQ1MFR2.5 part is unused and in its original packaging.
Return procedure for LM4132BQ1MFR2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132BQ1MFR2.5 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…
