AAT1146 Analogic Corporation, AAT1146 Datasheet - Page 18

• Manufacturer Part Number: AAT1146
• Manufacturer: Analogic Corporation

1. For reduced quiescent current, R2 and R4 = 221kΩ.
18
Manufacturer
Sumida
Sumida
Sumida
MuRata
MuRata
Coilcraft
Coiltronics
Coiltronics
Coiltronics
Adjustable Version
Fixed Version
(0.6V device)
V
V
0.6-3.3V
OUT
OUT
1.85
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.8
2.0
2.5
3.3
(V)
(V)
LQH2MCN4R7M02
LQH32CN4R7M23
CDRH3D16-2R2
CDRH3D16-4R7
CDRH3D16-6R8
Part Number
LPO3310-472
SDRC10-4R7
SD3118-4R7
SD3118-6R8
R2, R4 Not Used
Table 4: Typical Surface Mount Inductors.
R2 = 59kΩ Ω
Table 3: Evaluation Board Component Values.
R1 (kΩ Ω )
R1 (kΩ Ω )
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
Inductance
0
(µH)
2.2
4.7
6.8
4.7
4.7
4.7
4.7
6.8
4.7
Fast Transient 400mA Step-Down Converter
Current (A)
Max DC
1.20
0.90
0.73
0.40
0.45
0.80
0.98
0.82
1.30
R2 = 221kΩ Ω
R1 (kΩ Ω )
1000
75.0
113
150
187
221
261
301
332
442
464
523
715
0.072
0.105
0.170
0.122
0.175
0.122
DCR
0.80
0.20
0.27
(Ω Ω )
1
2.0x1.6x0.95
3.1x3.1x1.85
3.1x3.1x1.85
Size (mm)
3.8x3.8x1.8
3.8x3.8x1.8
3.8x3.8x1.8
2.5x3.2x2.0
3.2x3.2x1.0
5.7x4.4x1.0
LxWxH
L1 (µH)
L1 (µH)
AAT1146
1mm Shielded
Non-Shielded
Non-Shielded
2.2
2.2
2.2
2.2
2.2
2.2
4.7
4.7
4.7
4.7
6.8
6.8
6.8
4.7
Shielded
Shielded
Shielded
Shielded
Shielded
1146.2006.01.1.2
Type
1mm