LM431
(ACTIVE) Adjustable Precision Zener Shunt Regulator

Description &
Features
Sample &
Buy
Technical
Documents
Tools &
Software
Support & Community

Sample & Buy

Free Samples Buy from Authorized Distributors Part # Status Replaced By Temp (oC) Price | QTY Package | Pins Device Marking Package QTY | Carrier Distributor Inventory TI 1k Lead Time
Not Available Not Available LM431ACM NRND LM431ACM/NOPB -40 to 85 0.25 | 1ku SOIC (D) | 8 View 95 | TUBE No Stock For lead times contact TI Authorized Distributor or local TI sales office
LM431ACM/NOPB ACTIVE   -40 to 85 0.23 | 1ku SOIC (D) | 8 View 95 | TUBE >5K 1k quantity lead time: In stock
Not Available
LM431ACM3 NRND LM431ACM3/NOPB -40 to 85 0.22 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
LM431ACM3/NOPB ACTIVE   -40 to 85 0.20 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Not Available LM431ACM3X NRND LM431ACM3X/NOPB -40 to 85 0.22 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431ACM3X/NOPB ACTIVE   -40 to 85 0.20 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Not Available LM431ACMX NRND LM431ACMX/NOPB -40 to 85 0.22 | 1ku SOIC (D) | 8 View 2500 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431ACMX/NOPB ACTIVE   -40 to 85 0.20 | 1ku SOIC (D) | 8 View 2500 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431ACZ/LFT3 ACTIVE     0.19 | 1ku TO-92 (LP) | 3 View 2000 600 For lead times contact TI Authorized Distributor or local TI sales office
Not Available Contact Distributor LM431ACZ/LFT4 ACTIVE     0.19 | 1ku TO-92 (LP) | 3 View 2000 No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431ACZ/NOPB ACTIVE   -40 to 85 0.19 | 1ku TO-92 (LP) | 3 View 1800 >5K 1k quantity lead time: In stock
Not Available
LM431AIM NRND LM431AIM/NOPB -40 to 85 0.24 | 1ku SOIC (D) | 8 View 95 | TUBE 630 For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431AIM/NOPB ACTIVE   -40 to 85 0.21 | 1ku SOIC (D) | 8 View 95 | TUBE >5K 1k quantity lead time: In stock
Not Available
LM431AIM3 NRND LM431AIM3/NOPB -40 to 85 0.20 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K For lead times contact TI Authorized Distributor or local TI sales office
LM431AIM3/NOPB ACTIVE   -40 to 85 0.18 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431AIM3X/NOPB ACTIVE   -40 to 85 0.18 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431AIMX/NOPB ACTIVE   -40 to 85 0.18 | 1ku SOIC (D) | 8 View 2500 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Contact Distributor LM431AIZ/LFT1 ACTIVE     0.18 | 1ku TO-92 (LP) | 3 View 2000 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
LM431AIZ/NOPB ACTIVE   -40 to 85 0.18 | 1ku TO-92 (LP) | 3 View 1800 >5K 1k quantity lead time: In stock
LM431BCM/NOPB ACTIVE   -40 to 85 0.24 | 1ku SOIC (D) | 8 View 95 | TUBE >5K 1k quantity lead time: In stock
Not Available
LM431BCM3 NRND LM431BCM3/NOPB -40 to 85 0.23 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431BCM3/NOPB ACTIVE   -40 to 85 0.20 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431BCM3X/NOPB ACTIVE   -40 to 85 0.20 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Not Available LM431BCMX NRND LM431BCMX/NOPB -40 to 85 0.23 | 1ku SOIC (D) | 8 View 2500 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431BCMX/NOPB ACTIVE   -40 to 85 0.20 | 1ku SOIC (D) | 8 View 2500 | LARGE T&R >5K 1k quantity lead time: In stock
LM431BCZ/NOPB ACTIVE   -40 to 85 0.20 | 1ku TO-92 (LP) | 3 View 1800 1K - 5K 1k quantity lead time: In stock
Not Available Not Available LM431BIM NRND LM431BIM/NOPB -40 to 85 0.25 | 1ku SOIC (D) | 8 View 95 | TUBE No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431BIM/NOPB ACTIVE   -40 to 85 0.23 | 1ku SOIC (D) | 8 View 95 | TUBE 1K - 5K 1k quantity lead time: In stock
Not Available
LM431BIM3 NRND LM431BIM3/NOPB -40 to 85 0.22 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K For lead times contact TI Authorized Distributor or local TI sales office
LM431BIM3/NOPB ACTIVE   -40 to 85 0.19 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431BIM3X NRND LM431BIM3X/NOPB -40 to 85 0.22 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431BIM3X/NOPB ACTIVE   -40 to 85 0.19 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431BIMX/NOPB ACTIVE   -40 to 85 0.19 | 1ku SOIC (D) | 8 View 2500 | LARGE T&R 1K - 5K 1k quantity lead time: In stock
Not Available
LM431CCM/NOPB ACTIVE   -40 to 85 0.27 | 1ku SOIC (D) | 8 View 95 | TUBE 49 For lead times contact TI Authorized Distributor or local TI sales office
LM431CCM3/NOPB ACTIVE   -40 to 85 0.27 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Not Available LM431CCM3X NRND LM431CCM3X/NOPB -40 to 85 0.30 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431CCM3X/NOPB ACTIVE   -40 to 85 0.27 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Contact Distributor LM431CCZ/NOPB ACTIVE   -40 to 85 0.27 | 1ku TO-92 (LP) | 3 View 1800 No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431CIM NRND LM431CIM/NOPB -40 to 85 0.34 | 1ku SOIC (D) | 8 View 95 | TUBE 950 For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431CIM/NOPB ACTIVE   -40 to 85 0.30 | 1ku SOIC (D) | 8 View 95 | TUBE >5K 1k quantity lead time: In stock
Not Available
LM431CIM3 NRND LM431CIM3/NOPB -40 to 85 0.34 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K For lead times contact TI Authorized Distributor or local TI sales office
LM431CIM3/NOPB ACTIVE   -40 to 85 0.30 | 1ku SOT-23 (DBZ) | 3 View 1000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM431CIM3X NRND LM431CIM3X/NOPB -40 to 85 0.34 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM431CIM3X/NOPB ACTIVE   -40 to 85 0.30 | 1ku SOT-23 (DBZ) | 3 View 3000 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available Contact Distributor LM431CIZ/LFT1 ACTIVE     0.30 | 1ku TO-92 (LP) | 3 View 2000 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
LM431CIZ/NOPB ACTIVE   -40 to 85 0.30 | 1ku TO-92 (LP) | 3 View 1800 >5K 1k quantity lead time: In stock

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Technical Documents

Datasheet (1)

Title Type Size (KB) Date Views
PDF 1240 29 Mar 2013

Application Notes (1)

Title Abstract Type Size (KB) Date Views
PDF 287 23 Jun 2010 1,617

More Literature (1)

Title Type Size (KB) Date Views
PDF 1130 26 Jul 2013 1,335

External Articles (1)

Reference Designs

Description Part Number Company Tool Type
High Efficiency Synchronous Flyback with 36-72Vin to 5Vout@2A PMP8917 Texas Instruments Reference Designs
High Efficiency Two-Stage Universal Input Power Supply-Transition Mode PFC, LLC Resonant Converter PMP8911 Texas Instruments Reference Designs
High efficiency two-stage universal input power supply using transition mode PFC and LLC resonant co PMP8920 Texas Instruments Reference Designs
± 5V Isolated, Low Noise Split Rail Generator (0.25A, 2.5W total) ISOLOWNOISESPLITRAILGEN-REF Texas Instruments Reference Designs



Support & Community


TI E2E™ Community

TI E2E Community

As a member of my.TI you can join the TI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. See Terms of Use.

Training & Events

Name Type Available During
Digital Power Supply Design Workshop
Do you want to reduce your development time of digital power supplies or code a digital controller?
Multi-Day Workshops   Tue, 06 May 2014 - Thu, 08 May 2014  
High Current Battery Charger Solutions for Portable Devices
This video is a must see for anyone involved with the design in of a battery charger for a high current portable device.
On-Line Training   On Demand  
Single Cell Charge Considerations
Learn many Single Cell Charge considerations. System overview, input considerations, limitations, topology and thermal issues.
On-Line Training   On Demand  
Wireless Power Tx Design
If you have difficulty in designing Wireless Power Transmitters, this video will provide you with a lot of tips for doing it.
On-Line Training   On Demand  
PCB Layout Guidelines for Fuel Gauge Design
The pack designer must take care to design the hardware to protect the pack in the conditions where it will be used.
On-Line Training   On Demand  
Click Here