AAT1153

2A Step-Down Converter

PRODUCT DATASHEET

1153.2008.02.1.2

15

www .analogictech.com

AAT1153

2A Step-Down Converter

PRODUCT DATASHEET

1153.2008.02.1.2

15

www .analogictech.com

Manufacturer

Part Number

Inductance

(μH)

Max DC

Current (A)

DCR (mΩ)

Size LxWxH

(mm)

Type

Sumida

CDRH5D16

2.2

3.0

28.7

5.8x5.8x1.8

Shielded

Sumida

3.3

2.6

35.6

Sumida

CDRH8D28

4.7

3.4

19

8.3x8.3x3.0

Shielded

Coiltronics

SD53

2.0

3.3

23

5.2x5.2x3.0

Shielded

Coiltronics

3.3

2.6

29

Coiltronics

4.7

2.1

39

Manufacturer

Part Number

Value

Voltage (V)

Temp. Co.

Case

Murata

GRM219R60J106KE19

10μF

6.3

X5R

0805

Murata

GRM21BR60J226ME39

22μF

6.3

X5R

0805

Murata

GRM1551X1E220JZ01B

22pF

25

JIS

0402

Table 2: Suggested Component Selection Information.

2.5V ~ 5.5V

EN

1

PGND

10

U1

AAT1153

IN

2

AIN

3

4

AGND

5

FB

PGND

LX

LX

AGND

9

8

7

6

EP

11

VIN

L1

2.2μH

R2A 316k

R1

316k

C2

22μF

VOUT

C3

22pF

1

2

3

5

4

6

78

R2B 634k

R2C 1M

R2D 1.43M

1.2V, 1.8V, 2.5V, 3.3V

C1

22μF

PGND

JP1

JP3

JP2

SGND

SGND

SGND

SGND

PGND

JP2_1-2: 1.2V;

JP2_3-4: 1.8V;

JP2_5-6: 2.5V;

JP2_7-8: 3.3V.

SGND

L1: CDRH5D16-2R2NC

C1, C2: GRM21BR60J226ME39

SW

Figure 3: AAT1153 Adjustable Voltage Version Recommended Evaluation Board Schematic.