AAT1141 Datasheet, PDF (18/20 Pages) Advanced Analogic Technologies – Fast Transient 600mA Step-Down Converter

DATA SHEET
AAT1141
Fast Transient 600mA Step-Down Converter
Adjustable Version
(0.6V device)
V_OUT (V)
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
Fixed Version
V_OUT (V)
0.6-3.3V
R2 = 59k
R1 (k)
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
R2 = 316k¹
R1 (k)
105
158
210
267
316
365
422
475
634
732
1000
1270
1430
R2 Not Used
R1 (k)
0
Table 3: Evaluation Board Component Values.
L1 (μH)
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
L1 (μH)
4.7
Manufacturer
Sumida
Sumida
Sumida
Sumida
Murata
Murata
Coilcraft
Coiltronics
Coiltronics
Coiltronics
Part Number
CDRH3D16-2R2
CDRH3D16-4R7
CDRH3D16-6R8
CDRH2D14
LQH2MCN4R7M02
LQH32CN4R7M23
LPO3310-472
SD3118-4R7
SD3118-6R8
SDRC10-4R7
Inductance (μH)
2.2
4.7
6.8
2.2
4.7
6.8
4.7
4.7
4.7
4.7
6.8
4.7
Max DC
Current (A)
1.20
0.90
0.73
1.5
1.0
0.85
0.40
0.45
0.80
0.98
0.82
1.30
DCR ()
0.072
0.105
0.170
75
135
170
0.80
0.20
0.27
0.122
0.175
0.122
Size (mm)
LxWxH
3.8x3.8x1.8
3.8x3.8x1.8
3.8x3.8x1.8
Type
Shielded
Shielded
Shielded
3.2x3.2x1.55
Shielded
2.0x1.6x0.95
2.5x3.2x2.0
3.2x3.2x1.0
3.1x3.1x1.85
3.1x3.1x1.85
5.7x4.4x1.0
Non-Shielded
Non-Shielded
1mm
Shielded
Shielded
1mm Shielded
Table 4: Typical Surface Mount Inductors.
Manufacturer
Murata
Murata
Murata
Part Number
GRM219R61A475KE19
GRM21BR60J106KE19
GRM21BR60J226ME39
Value
4.7μF
10μF
22μF
Voltage
10V
6.3V
6.3V
Table 5: Surface Mount Capacitors.
Temp. Co.
X5R
X5R
X5R
Case
0805
0805
0805
1. For reduced quiescent current, R2 = 316k.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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201979B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013