TL431_FAM

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© NXP B.V. 2011. All rights reserved.

Product data sheet

Rev. 4 — 30 June 2011

21 of 27

NXP Semiconductors

TL431 family

Adjustable precision shunt regulator

14. Test information

14.1 Quality information

This product has been qualified in accordance with the Automotive Electronics Council

(AEC) standard Q100 - Failure mechanism based stress test qualification for integrated

circuits, and is suitable for use in automotive applications.

15. Package outline

Fig 38. TL431 in control loop of SMPS

006aac482

R1

R2

GND

R3

REF

GND

REGULATOR LINE

Fig 39. Package outline SOT23 (TO-236AB)

04-11-04

Dimensions in mm

0.45

0.15

1.9

1.1

0.9

3.0

2.8

2.5

2.1

1.4

1.2

0.48

0.38

0.15

0.09

12

3