My Inquiry
My Account
Texas Instruments LM4132AMF-2.5/NOPB
- Part No.:
- LM4132AMF-2.5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132AMF-2.5/NOPB.pdf
- Description:
- IC VREF SERIES 0.05% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,150
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4132AMF-2.5/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 2.5 V output with 0.05% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current. It operates from VIN = VREF + 400 mV (min) up to 5.5 V and supports 20 mA load current - enabling use in high-accuracy ADC/DAC biasing, portable instrumentation, and battery-powered test equipment.
For engineers reviewing the LM4132AMF-2.5/NOPB datasheet, LM4132AMF-2.5/NOPB pinout, LM4132AMF-2.5/NOPB application, or LM4132AMF-2.5/NOPB equivalent, key selection criteria include dropout voltage at 10 mA (175 mV typ), enable-controlled shutdown (3 µA IQ_SD), line regulation (50 ppm/V), load regulation (25 ppm/mA), and SOT-23-5 package compatibility with low-ESR ceramic capacitors.
Technical Context
The LM4132AMF-2.5/NOPB 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 enable logic drives an active-high EN pin that transitions between 60 µA operating mode and 3 µA shutdown state, with VIH = 65% VIN and VIL = 35% VIN across –40°C to +125°C.
This A-grade device is specified for 2.5 V output with ±0.05% initial tolerance and 10 ppm/°C tempco over 0°C–85°C - tighter than B–E grades - and maintains 0.5% output accuracy down to 400 mV dropout at full 20 mA load. No output capacitor is required, though COUT improves transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±0.05% (±1.25 mV) at 25°C - enables 16-bit ADC reference with <0.002% full-scale error |
| Tempco | 10 ppm/°C (0°C to 85°C) - drift ≤ ±0.21 mV over industrial range, critical for precision sensor signal chains |
| Dropout Voltage | 175 mV typ at 10 mA - allows operation from 2.675 V input, supporting single-cell Li-ion or 3.3 V rail margin |
| Quiescent Current | 60 µA typ - enables >1-year battery life in 10 µA sleep-mode systems with periodic measurement bursts |
| Shutdown Current | 3 µA max at EN = 0 V - reduces standby power by 95% vs active mode, essential for energy harvesting nodes |
| Line Regulation | 50 ppm/V - output shifts <125 µV per volt of input variation, minimizing supply ripple coupling |
| Load Regulation | 25 ppm/mA - output changes <62.5 µV per mA load step, ensuring stability under dynamic DAC/ADC loads |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads. Pin 1 is top-left (mark dot adjacent), pin 5 is top-right.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect terminal | Must remain floating; no internal connection - PCB pad may be omitted or left unconnected |
| 2 - GND | Analog ground reference | Low-impedance return path for reference output and internal band-gap; requires dedicated ground plane tie |
| 3 - EN | Enable control input | Active-high digital input; VIH ≥ 65% VIN enables output, VIL ≤ 35% VIN disables - compatible with 1.8 V/3.3 V logic |
| 4 - VIN | Input supply | Accepts 2.9 V to 5.5 V; minimum VIN = VREF + 400 mV ensures regulation - decoupling capacitor (CIN) mandatory |
| 5 - VREF | Precision output | 2.5 V reference source; capable of sourcing 20 mA; optional COUT improves PSRR and transient response |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed CMOS band-gap | Eliminates assembly-induced voltage shift - achieves 0.05% accuracy without laser trimming, reducing cost and test time |
| Enable-controlled shutdown | Reduces supply current from 60 µA to 3 µA - extends battery life in duty-cycled data loggers and portable meters |
| No output capacitor required | Stable with only input capacitor (CIN); avoids COUT-related phase margin risks and board space overhead in space-constrained designs |
| Low-noise 0.1–10 Hz output | 240 µVPP typical - suitable for 24-bit sigma-delta ADCs where reference noise directly limits effective resolution |
| AEC-Q100 Grade 1 qualified | Rated for –40°C to +125°C ambient - validated for automotive engine control, ADAS sensor modules, and industrial motor drives |
Applications
| Portable Multimeter Front-End | Industrial 4–20 mA Transmitter |
|---|---|
|
Use Scenario: Handheld digital multimeter measuring DC voltage with 0.1% accuracy and auto-ranging. IC Role / Device Role / Timing Role: Primary 2.5 V reference for 16-bit SAR ADC and analog front-end gain calibration. Use Value: 10 ppm/°C tempco and 0.05% initial accuracy ensure reading stability across 0–50°C handheld operating range without recalibration. |
Use Scenario: Loop-powered 4–20 mA transmitter converting temperature sensor output in factory automation. IC Role / Device Role / Timing Role: Precision voltage reference for current-loop DAC and sensor signal conditioning amplifier. Use Value: 175 mV dropout enables operation from 3.0 V loop supply headroom; 60 µA IQ minimizes burden on 4 mA minimum loop current. |
| Battery-Powered Data Logger | Automotive Cabin Pressure Sensor |
|
Use Scenario: Solar-charged environmental logger recording temperature/humidity every 10 minutes for 5+ years. IC Role / Device Role / Timing Role: Reference for low-power microcontroller ADC during wake-up bursts; disabled between samples. Use Value: 3 µA shutdown current reduces average system power to sub-µA level - extending lithium-thionyl chloride battery life beyond 60 months. |
Use Scenario: MEMS pressure sensor module in automotive HVAC control, operating from 12 V battery via LDO. IC Role / Device Role / Timing Role: Stable 2.5 V reference for ratiometric bridge excitation and ADC conversion. Use Value: AEC-Q100 Grade 1 qualification and 20 ppm/°C tempco over –40°C to +125°C ensure accuracy across cabin thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | Fixed 2.5 V, 50 ppm/°C max tempco, 50 µA IQ, SOT-23-3, no enable pin | Lacks shutdown control; lower accuracy grade; simpler layout but no power-gating capability | Choose when ultra-low IQ (50 µA) and minimal footprint (3-pin) outweigh need for enable and tighter tempco |
| ADR3425ARJZ-R7 | 2.5 V, 10 ppm/°C max, 120 µA IQ, SOT-23-5, no enable, higher noise (31 µVPP) | Higher supply current limits battery life; no shutdown mode; better long-term stability (15 ppm/1k hrs) | Prefer when long-term drift dominates design requirements and enable functionality is unnecessary |
Compared with REF3025AIDBZR and ADR3425ARJZ-R7, the LM4132AMF-2.5/NOPB uniquely combines A-grade 10 ppm/°C tempco, enable-driven 3 µA shutdown, and 20 mA drive strength - making it optimal for portable, power-aware, high-accuracy systems requiring active power management.
Availability
LM4132AMF-2.5/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial 4–20 mA transmitters, and automotive cabin sensor modules requiring stable component supply, long-lifecycle support, and AEC-Q100 compliance.
Supply support for LM4132AMF-2.5/NOPB 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, embedded processing, and connectivity technologies, serving industrial, automotive, and consumer markets with high-reliability components.
The LM4132 family was designed as a cost-effective, high-accuracy alternative to laser-trimmed references - targeting battery-powered instrumentation, precision data acquisition, and automotive sensor interfaces where tempco, initial accuracy, and low IQ are critical.
FAQ
What is the maximum input voltage for LM4132AMF-2.5/NOPB?
The absolute maximum input voltage for LM4132AMF-2.5/NOPB is 6 V, but the recommended operating maximum is 5.5 V. Exceeding 5.5 V risks violating absolute maximum ratings and may degrade long-term reliability. The device functions correctly from VIN = VREF + 400 mV (2.9 V min) up to 5.5 V, with optimal performance near 5 V.
Does LM4132AMF-2.5/NOPB require an output capacitor?
No, LM4132AMF-2.5/NOPB is stable without an output capacitor (COUT), unlike many older voltage references. A 1 µF ceramic COUT is optional and improves PSRR above 10 kHz and load transient response - but is not required for basic regulation. Input capacitor CIN (≥1 µF ceramic) is mandatory for stability.
What does the 'A' grade signify in LM4132AMF-2.5/NOPB?
The 'A' in LM4132AMF-2.5/NOPB denotes the highest accuracy grade: ±0.05% initial output voltage tolerance and 10 ppm/°C temperature coefficient over 0°C to 85°C. This grade is tested and binned separately - distinguishing it from B (±0.1%), C (±0.2%), D (±0.4%), and E (±0.5%) grades in the same LM4132 family.
Can LM4132AMF-2.5/NOPB drive a 20 mA load continuously?
Yes, LM4132AMF-2.5/NOPB is rated for continuous 20 mA output current across –40°C to +125°C ambient. At 20 mA and 25°C, dropout remains ≤400 mV, and output voltage stays within ±0.5% of 2.5 V. Thermal derating applies above 85°C ambient due to SOT-23-5's 164.1°C/W RθJA.
Is LM4132AMF-2.5/NOPB suitable for automotive applications?
Yes, LM4132AMF-2.5/NOPB is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2000 V. It meets automotive requirements for cabin sensors, body control modules, and infotainment subsystems - though it is not the automotive-specific LM4132-Q1 variant, which adds additional qualification testing.
LM4132AMF-2.5/NOPB 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:
- ±0.05%
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132AMF-2.5/NOPB FAQ
1.How can I place an order for LM4132AMF-2.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132AMF-2.5/NOPB 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 LM4132AMF-2.5/NOPB reliable?
The price and inventory of LM4132AMF-2.5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132AMF-2.5/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132AMF-2.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132AMF-2.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132AMF-2.5/NOPB?
LM4132AMF-2.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132AMF-2.5/NOPB 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 LM4132AMF-2.5/NOPB?
For technical support, including LM4132AMF-2.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132AMF-2.5/NOPB requirements.
6.How does Aetrix verify that LM4132AMF-2.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132AMF-2.5/NOPB 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 LM4132AMF-2.5/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132AMF-2.5/NOPB?
All LM4132AMF-2.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132AMF-2.5/NOPB, 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 LM4132AMF-2.5/NOPB part is unused and in its original packaging.
Return procedure for LM4132AMF-2.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132AMF-2.5/NOPB 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…
