AAT1151IVN-2.5-T1 datasheet(11/16 Pages) ANALOGICTECH

Part #	AAT1151IVN-2.5-T1

Description	850kHz 700mA Synchronous Buck DC/DC Converter

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Manufacturer	ANALOGICTECH [Advanced Analogic Technologies]

Direct Link	http://www.analogictech.com

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11 / 16 page

AAT1151

850kHz 700mA Synchronous Buck DC/DC Converter

1151.2005.11.1.4

11

Figure 2: MSOP Evaluation

Figure 3: MSOP Evaluation

Board Top Layer.

Board Bottom Layer.

Figure 4: QFN Evaluation Board

Figure 5: QFN Evaluation Board

Top Side.

Bottom Side.

Figure 6: R3 vs. V

OUT for Adjustable Output

Figure 7: Adjustable Output Schematic.

Using the AAT1151-1.0V.

L1

3.3

µH

C2, C4

2x 22

µF

C1

10

µF

R1 100

C3

0.1

µF

C1 Murata 10

µF 6.3V X5R GRM42-6X5R106K6.3

L1 Sumida CDRH3D16-3R3 NC

R2

100k

C2, C4 MuRata 22

µF 6.3V GRM21BR60J226ME39L X5R 0805

Vo+ 1.25V 0.7A

2.7V-5.5V

V-

FB

1

gnd

2

EN

3

Vcc

4

Vp

5

LX

6

LX

7

Pgnd

8

AAT1151-1.0

R3

2.55k 1%

R4

10k

Ω 1%

0

5

10

15

20

25

30

35

40

45

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

Output Voltage (V)

R4=10k

Ω

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