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AP1084

5A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1084 Rev. 9 1 of 11 JANUARY 2010

DS31070 www.diodes.com © Diodes Incorporated

• 1.4V Maximum Dropout at Full Load Current

• Built-in Thermal Shutdown

• Output Current Limiting

• Adjustable Output Voltage or Fixed 1.5V, 1.8V, 2.5V,

3.3V, 5.0V

• Fast Transient Response

• Good Noise Rejection

• Lead Free Packages: TO252-3L, TO263-3L and

TO220-3L

• TO252-3L, TO263-3L and TO220-3L: Available in

“Green” Molding Compound (No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

AP1084 is a low dropout positive adjustable or fixed-mode

regulator with 5.0A output current capability. The product is

specifically designed to provide well-regulated supply for low

voltage IC applications such as high-speed bus termination and

low current 3.3V logic supply. AP1084 is also well suited for other

applications such as VGA cards. AP1084 is guaranteed to have

lower than 1.4V dropout at full load current making it ideal to

provide well-regulated outputs of 1.25 to 3.3V with 4.7 to

12V input supply.

Typical Application Circuit

5.0V to 3.3V Fixed Mode Regulator

100uF

3.3V/5A

Tab is V

out

GND

100uF

Adjustable Regulator

100uF

2.5V/5A

Tab is V

out

Adj

100uF

121

Ω

)

(1 V

REF

+∗=

Note:

Features

General Description

1 2 3 4 5 6 ... 10 11

Résumé du contenu

Page 1 - AP1084

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 1 of 11

Page 2 - Ordering Information

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 10 of 11

Page 3 - Pin Description

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 11 of 11

Page 4 - Absolute Maximum Ratings

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 2 of 11

Page 5 - FIXED-MODE REGULATOR

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 3 of 11

Page 6 - Functional Description

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 4 of 11

Page 7

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 5 of 11

Page 8 - Marking Information

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 6 of 11

Page 9

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 7 of 11

Page 10 -

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 8 of 11

Page 11

AP10845A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR AP1084 Rev. 9 9 of 11

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Diodes AP1084 Manuel d'utilisateur

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