AAT1145_08 Datasheet, PDF (14/17 Pages) Advanced Analogic Technologies – 1.5A Step-Down Converter

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PRODUCT DATASHEET
AAT1145
1.5A Step-Down Converter
Manufacturer
Sumida
Sumida
Sumida
Coiltronics
Coiltronics
Manufacturer
Murata
Murata
Murata
Part Number
Inductance
(μH)
CDRH3D16
2.2
CDRH4D15
3.3
CDRH5D16
4.7
SD3118-2R2-R
2.2
SD3114-2R2-R
2.2
Part Number
GRM219R60J106KE19
GRM21BR60J226ME39
GRM1551X1E220JZ01B
Max DC
Current (A)
1.75
1.6
2.15
2.00
1.74
Value
10μF
22μF
22pF
DCR (mΩ)
47
71
51.3
74
110
Voltage (V)
6.3
6.3
25
Size (mm)
LxWxH
4.0x4.0x1.8
4.7x4.7x1.7
5.8x5.8x1.8
3.1x3.1x1.8
3.1x3.1x1.4
Temp. Co.
X5R
X5R
JIS
Table 2. Suggested Component Selection Information
Type
Shielded
Shielded
Shielded
Shielded
Shielded
Case
0805
0805
0402
VIN 2.5V-5.5V
C1
10μF
EN
LX
IN
LX
AIN AAT1145 FB
AGND
PGND
AGND
PGND
EP
L1
2.2μH
C3
22pF
VOUT
1.8V,1.5A
R1
634k
R2
316k
C2
22μF
U1: AAT1145 TDFN33-10
L1: SD3118-2R2-R
C1: 10μF 6.3V 0805 X5R
C2: 22μF 6.3V 0805 X5R
Figure 3: AAT1145 Adjustable Voltage Version Recommended Evaluation Board Schematic.
Figure 4: AAT1145 Evaluation
Board Top Layer.
Figure 5: Exploded View of AAT1145
Evaluation Board Top Layer.
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1145.2008.01.1.2