AAT2504_08 Datasheet, PDF (18/21 Pages) Advanced Analogic Technologies – Adjustable 3-Channel Regulator

SystemPower^TM
PRODUCT DATASHEET
AAT2504178
Adjustable 3-Channel Regulator
Figure 1: AAT2504 Evaluation Board
Top Side Layout.
Figure 2: AAT2504 Evaluation Board
Bottom Side Layout.
SYNC
R10
100k
U1
FB 5 _FB
AAT2504
LX
VIN
R1
100
C4
0.1μF
3
2
1
VINA
1
2
3
EN
1
2
3
ENB
GND
POK
MODE/SYNC 4 _{MODE/SYNC LX}
VIN 13 _VIN
OUTA
C8
3
1μF
2
1
VINB
VLDOA 18 _VLDOA
POK
VLDOB 19 _VLDOB
C9
1μF
VP 10 _VP
FBA
OUTB
EN 14 _EN
FBB
1
2
3
ENA
R12
(open)
ENB 3 _ENB
ENA 2 _ENA
C7
10μF
PGND
AGND
POK
9 LX
8
17 OUTA
15
16 FBA
20 OUTB
1 FBB
7
6
LX
L1
CDRH2D14
R3
100k
R4
R5
R7
59.0k
R8
59.0k
GND
Buckout
C2
10μF
C6
2.2μF
C5
2.2μF
VOUT_BUCK
C3
.01μF
R2 ^C1
100pF
OUTA
OUTB
R6
59.0k
GND
GND
VOUT_BUCK (V)
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.8
1.85
2.0
2.5
2.8
3.0
3.3
R2 (kΩ)
0
6.65
13.3
19.6
26.1
32.4
39.2
59
61.9
71.5
105
124
137
158
L1 (μH)
1.5
1.5
1.5
1.5
1.5
1.5
2.2
2.2
2.2
2.2
3.3
3.3
3.3
3.3
VOUT_LDO (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
R4, R5 (kΩ)
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
U1 AAT2504 QFN34-20
L1 Sumida CDRH2D14 or Coltronics SD3812
C2, C7 10uF, 6.3V, X5R, 0805 GRM219R60J106KE19
C5, C6 2.2uF, 10V, X5R, 0603 GRM188R61A225KE34
C8, C9 1uF, 6.3V, X5R, 0603 GRM185R60J105KE26
Figure 3: AAT2504 Evaluation Board Schematic.
18
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2504.2008.02.1.2