Home Power management Voltage references Series voltage references

LM4132-Q1

ACTIVE

Automotive, SOT-23 precision low dropout voltage reference

Product details

VO (V) 2.5, 3, 3.3 Initial accuracy (max) (%) 0.05, 0.1, 0.2, 0.4 Temp coeff (max) (ppm/°C) 10, 20 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Iq (typ) (mA) 0.06 Rating Automotive TI functional safety category Functional Safety-Capable Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 240, 285, 310 Iout/Iz (max) (mA) 20 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 3
VO (V) 2.5, 3, 3.3 Initial accuracy (max) (%) 0.05, 0.1, 0.2, 0.4 Temp coeff (max) (ppm/°C) 10, 20 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Iq (typ) (mA) 0.06 Rating Automotive TI functional safety category Functional Safety-Capable Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 240, 285, 310 Iout/Iz (max) (mA) 20 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 3
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
  • Output Initial Voltage Accuracy: 0.05%
  • Low Temperature Coefficient: 10 ppm/°C
  • Low Supply Current: 60 µA
  • Enable Pin Allowing a 3-µA Shutdown Mode
  • 20-mA Output Current
  • Voltage Options: 1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, 4.096 V
  • Custom Voltage Options Available (1.8 V to 4.096 V)
  • VIN Range of VREF + 400 mV to 5.5 V at 10 mA
  • Stable With Low-ESR Ceramic Capacitors
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
  • Output Initial Voltage Accuracy: 0.05%
  • Low Temperature Coefficient: 10 ppm/°C
  • Low Supply Current: 60 µA
  • Enable Pin Allowing a 3-µA Shutdown Mode
  • 20-mA Output Current
  • Voltage Options: 1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, 4.096 V
  • Custom Voltage Options Available (1.8 V to 4.096 V)
  • VIN Range of VREF + 400 mV to 5.5 V at 10 mA
  • Stable With Low-ESR Ceramic Capacitors

The LM4132 family of precision voltage references performs comparable to the best laser-trimmed bipolar references, but in cost-effective CMOS technology. The key to this breakthrough is the use of EEPROM registers for correction of curvature, temperature coefficient (tempco), and accuracy on a CMOS band-gap architecture allowing package-level programming to overcome assembly shift. The shifts in voltage accuracy and tempco during assembly of die into plastic packages limit the accuracy of references trimmed with laser techniques.

Unlike other LDO references, the LM4132 can deliver up to 20 mA and does not require an output capacitor or buffer amplifier. These advantages along with the SOT-23 packaging are important for space-critical applications.

Series references provide lower power consumption than shunt references, because they do not have to idle the maximum possible load current under no-load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4132 ideal for battery-powered solutions.

The LM4132 is available in five grades (A, B, C, D and E) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.05% with a specified temperature coefficient of 10 ppm/°C or less, while the lowest grade devices (E) have an initial accuracy of 0.5% and a tempco of 30 ppm/°C.

The LM4132 family of precision voltage references performs comparable to the best laser-trimmed bipolar references, but in cost-effective CMOS technology. The key to this breakthrough is the use of EEPROM registers for correction of curvature, temperature coefficient (tempco), and accuracy on a CMOS band-gap architecture allowing package-level programming to overcome assembly shift. The shifts in voltage accuracy and tempco during assembly of die into plastic packages limit the accuracy of references trimmed with laser techniques.

Unlike other LDO references, the LM4132 can deliver up to 20 mA and does not require an output capacitor or buffer amplifier. These advantages along with the SOT-23 packaging are important for space-critical applications.

Series references provide lower power consumption than shunt references, because they do not have to idle the maximum possible load current under no-load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4132 ideal for battery-powered solutions.

The LM4132 is available in five grades (A, B, C, D and E) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.05% with a specified temperature coefficient of 10 ppm/°C or less, while the lowest grade devices (E) have an initial accuracy of 0.5% and a tempco of 30 ppm/°C.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
REF4132-Q1 ACTIVE Automotive 12-ppm/°C low-noise low-power precision voltage reference Lower temperature drift
Same functionality with different pin-out to the compared device
REF34-Q1 ACTIVE Automotive, low-drift, low-power, small-footprint series voltage reference Lower temperature drift and lower noise

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet LM4132, LM4132-Q1 SOT-23 Precision Low Dropout Voltage Reference datasheet (Rev. G) PDF | HTML 13 Oct 2016
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 09 Jan 2024
E-book Tips and tricks for designing with voltage references (Rev. A) 07 May 2021
Functional safety information LM4132-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) 27 Oct 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Technical article How voltage references and supervisors help achieve ASIL functional safety goals PDF | HTML 10 May 2019
White paper Voltage reference selection basics white paper (Rev. A) 23 Oct 2018
Technical article Speeding through the ADAS market 0-60 PDF | HTML 07 Dec 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)

User guide: PDF
Not available on TI.com
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

TIDA-020018 — Automotive shunt-based isolated current sensor reference design for DC/DC and OBC applications

This reference design demonstrates high-side primary current sensing in DC/DC converter and onboard charger (OBC) applications for hybrid and electric vehicles. Using an isolated shunt approach for current sensing has several advantages, including high accuracy, linearity and robustness. However, (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-050008 — ADAS power reference design with improved voltage supervision

This automotive power reference design supports additional precision voltage supervision and window watchdog for safety MCUs in advanced driver assistance systems (ADAS). These ADAS systems can control driving functions, such as automated emergency brake, lane keep assist and adaptive cruise (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos