PRODUCT DATASHEET
AAT1153
2A Step-Down Converter
Size LxWxH
Inductance
Max DC
Current (A)
Manufacturer
Part Number
(μH)
DCR (mΩ)
(mm)
Type
Sumida
Sumida
Sumida
Coiltronics
Coiltronics
Coiltronics
2.2
3.3
4.7
2.0
3.3
4.7
3.0
2.6
3.4
3.3
2.6
2.1
28.7
35.6
19
23
29
CDRH5D16
CDRH8D28
5.8x5.8x1.8
8.3x8.3x3.0
Shielded
Shielded
SD53
5.2x5.2x3.0
Shielded
39
Manufacturer
Part Number
Value
Voltage (V)
Temp. Co.
Case
Murata
Murata
Murata
GRM219R60J106KE19
GRM21BR60J226ME39
GRM1551X1E220JZ01B
10μF
22μF
22pF
6.3
6.3
25
X5R
X5R
JIS
0805
0805
0402
Table 2: Suggested Component Selection Information.
JP1
SGND
U1
JP3
AAT1153
1
2
3
4
5
10
9
EN
PGND
PGND
LX
PGND
SGND
2.5V ~ 5.5V
VIN
IN
SW
8
AIN
AGND
FB
C1
L1
2.2μH
22μF
7
LX
PGND
SGND
6
AGND
EP
11
SGND
JP2
1.2V, 1.8V, 2.5V, 3.3V
VOUT
R2A 316k
R2B 634k
R2C 1M
1
2
3
4
5
7
6
8
R2D 1.43M
C2
22μF
C3
22pF
R1
316k
JP2_1-2: 1.2V;
JP2_3-4: 1.8V;
JP2_5-6: 2.5V;
SGND
L1: CDRH5D16-2R2NC
C1, C2: GRM21BR60J226ME39
JP2_7-8: 3.3V.
Figure 3: AAT1153 Adjustable Voltage Version Recommended Evaluation Board Schematic.
w w w . a n a l o g i c t e c h . c o m
1153.2007.11.1.1
15
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