AAT2505 Datasheet, PDF (22/26 Pages) Advanced Analogic Technologies – Dual Channel, Step-Down Converter/Linear Regulator

AAT2505
Dual Channel, Step-Down
Converter/Linear Regulator
V_OUT (V)
Adjustable Version
(0.6V device)
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.8
1.85
2.0
2.5
3.3
V_OUT (V)
Fixed Version
0.6-3.3V
R1 (kΩ)
R1 (kΩ)
R2 = 59kΩ
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
R1 (kΩ)
R2 Not Used
0
R2 = 221kΩ¹
75.0
113
150
187
221
261
301
332
442
464
523
715
1000
Table 3: Evaluation Board Component Values.
L1 (µH)
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7 or 6.8
10
10
L1 (µH)
4.7
Manufacturer
Sumida
Sumida
MuRata
MuRata
MuRata
Coilcraft
Coilcraft
Coiltronics
Coiltronics
Coiltronics
Coiltronics
Part Number
CDRH3D16-4R7
CDRH3D16/HP100
LQH32CN4R7M23
LQH32CN4R7M33
LQH32CN4R7M53
LPO6610-472
LPO3310-472
SDRC10-4R7
SDR10-4R7
SD3118-4R7
SD18-4R7
Inductance
(µH)
4.7
10
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
Max DC
Current (A)
0.90
0.84
0.45
0.65
0.65
1.10
0.80
1.53
1.30
0.98
1.77
DCR
(Ω)
0.11
0.23
0.20
0.15
0.15
0.20
0.27
0.117
0.122
0.122
0.082
Size (mm)
LxWxH
4.0x4.0x1.8
4.0x4.0x1.8
2.5x3.2x2.0
2.5x3.2x2.0
2.5x3.2x1.55
5.5x6.6x1.0
3.3x3.3x1.0
4.5x3.6x1.0
5.7x4.4x1.0
3.1x3.1x1.85
5.2x5.2x1.8
Table 4: Typical Surface Mount Inductors.
Type
Shielded
Shielded
Non-Shielded
Non-Shielded
Non-Shielded
1mm
1mm
1mm Shielded
1mm Shielded
Shielded
Shielded
1. For reduced quiescent current R2 = 221kΩ.
22
2505.2006.06.1.1