AAT1123 Datasheet, PDF (16/18 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter

DATA SHEET
AAT1123
1MHz Step-Down Converter
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 (k)
R2 = 59kΩ
R1 (k)
R2 = 221kΩ¹
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
75.0
113
150
187
221
261
301
332
442
464
523
715
1000
R1 (kΩ)
R2 Not Used
0
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
Coilcraft
Coilcraft
Coiltronics
Coiltronics
Coiltronics
Coiltronics
Part Number
CDRH3D16-4R7
CDRH3D16/HP-100
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
Max DC
Current (A)
0.90
0.84
0.65
0.65
1.10
0.80
1.53
1.30
0.98
1.77
DCR
()
0.11
0.23
0.15
0.15
0.20
0.27
0.117
0.122
0.122
0.082
Table 4: Typical Surface Mount Inductors.
Size (mm)
LxWxH
4.0x4.0x1.8
4.0x4.0x1.8
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
Type
Shielded
Shielded
Non-Shielded
Non-Shielded
1mm
1mm
1mm Shielded
1mm Shielded
Shielded
Shielded
Manufacturer
Murata
TDK
Taiyo Yuden
Part Number
GRM21BR60J226ME39
C2012X5R0J226K
JMK212BJ226KL
Value
22μF
22μF
22μF
Voltage
6.3V
6.3V
6.3V
Table 5: Surface Mount Capacitors.
Temp. Co.
X5R
X5R
X5R
Case
0805
0805
0805
1. For reduced quiescent current R2 = 221k.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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201975B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013