AAT2522 Datasheet, PDF (15/19 Pages) Skyworks Solutions Inc. – Dual High-Current, Low-Noise, Step-Down Regulator

DATA SHEET
AAT2522
Dual High-Current, Low-Noise, Step-Down Regulator
VIN
2.7V-5.5V
C1
10μF
EN2 ₃
2
1
R1
0Ω
C3
0.1μF
C2
10μF
R6
100Ω
EN1 ₃
2
1
C4
0.1μF
U1
AAT2522 IRN
3
IN2
LX2 ¹³
1
VCC2
FB2 ¹⁵
2 _EN2
AGND2 ¹⁶
6
IN1
LX1 ⁸
7 _IN1
5
VCC1
FB1 ¹¹
AGND1 ¹²
4 _EN1
PGND1 ¹⁰
14 _{PGND2 PGND1} 9
EP
L2
3.3μH
L1
1.5μH
VOU T 2
C5
opt
R2
453kΩ
C7
R3
22μF
100kΩ
3.3V/3A
C8
opt
VOUT1
C6 _R4
opt _100kΩ
R5
100kΩ
C9
22μF
1.2V/3A
C10
opt
U1
C1, C2
C3, C4
C5, C6
C7-C9
L1
L2
R1-R6
AAT2522IRN, Skyworks, TDFN34-16
Ceramic cap, MLC, 10μF/10V, 0803
Ceramic cap, MLC, 0.1μF/10V, 0402
Ceramic cap, MLC, 100pF/10V, 0402, optional
Ceramic cap, MLC, 22μF/10V, 0805
1.5μH, Sumida, CDRH4D22HPNP-1R5NC, 3.9A, 25mΩ
3.3μH, Sumida, CDRH6D38NP-3R3N, 3.5A, 15mΩ
Carbon film resistor, 0402
Figure 2: AAT2522 Evaluation Board Schematic and Bill of Materials.
Figure 3: AAT2522 Evaluation Board
Top Side Layout.
Figure 4: AAT2522 Evaluation Board
Bottom Side Layout.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202032A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012
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