TLV431

TLV431

Document number: DS32088 Rev. 4 - 2

11 of 14

www.diodes.com

November 2010

© Diodes Incorporated

A Product Line of

Diodes Incorporated

Printed circuit board layout considerations (continued)

⎟

⎠

⎞

⎜

⎝

⎛ +

=

2

R

1

R

1

REF

V

OUT

V

)

REF

V

REG

V

(

OUT

V

+

≥

B

I

)

REG

V

OUT

V

(

IN

V

3

R

−

−

=

mA

18

B

I

mA

1

.

0

≤

≤

(All features of the regulator such

as short circuit protection,

thermal shutdown, etc, are

maintained.)

Figure 7. Adjustable linear voltage regulator

Figure 7 is similar to Figure 6 with adjustability added. Note the addition of R3. This is only required for the AP1117 due to the

fact that its ground or adjustment pin can only supply a few micro-Amps of current at best. R3 is therefore needed to provide

sufficient bias current for the TLV431.

Ordering Information

Tol.

Orde Code

Pack

Part Mark

Status

Reel Size

Tape Width

Quanity per

Reel

1%

TLV431AE5TA

SOT25

V1A

Active

7”, 180mm

8mm

3000

TLV431AFTA

SOT23

V1A

Active

7”, 180mm

8mm

3000

TLV431AH6TA

SC70-6

V1A

Active

7”, 180mm

12mm

1000

0.5%

TLV431BE5TA

SOT25

V1B

Active

7”, 180mm

8mm

3000

TLV431BFTA

SOT23

V1B

Active

7”, 180mm

8mm

3000

TLV431BH6TA

SC70-6

V1B

Active

7”, 180mm

12mm

1000