AAT2510IWP-AA-T1 AnalogicTech, AAT2510IWP-AA-T1 Datasheet - Page 16

• Manufacturer Part Number: AAT2510IWP-AA-T1
• Description: Dual 400mA, 1MHz Step-Down DC-DC Converter
• Manufacturer: AnalogicTech

AAT2510 Losses
The maximum dissipation occurs at dropout where V
85°C and a junction temperature of 120°C.
1. For enhanced transient configuration C5, C4 = 100pF and C1, C2 = 10µF.
16
P
T
J(MAX)
TOTAL
=
+ (t
+ 5ns · 1MHz · 0.4A + 60µA) · 2.7V = 240mW
= T
=
I
0.4
O1
sw
AMB
2
2
· F · I
· (R
· (0.725 Ω · 2.5V + 0.7Ω · (2.7V - 2.5V)) + 0.4
+ Θ
GND
DSON(HS)
C5
JA
O2
1
• P
+ 2 · I
LOSS
R3
see Table 3
R4
59.0k
· V
C4
Q
O1
) · V
= 85°C + (50°C/W) • 240mW = 97°C
1
Figure 3: AAT2510 Evaluation Board Schematic.
+ R
IN
DSON(LS)
R2
59.0k
R1
see Table 3
Output 2 Enable
Dual 400mA, 1MHz Step-Down DC-DC Converter
Output 1 Enable
· (V
3 2 1
1 2 3
IN
-V
1
2
3
4
5
6
EN1
FB1
SGND1
EN2
FB2
SGND2
O1
U1
AAT2510
)) + I
V
2.7V
IN
GND1
GND2
IN
VIN1
VIN2
O2
LX1
LX2
= 2.7V. All values assume an ambient temperature of
2
· (R
12
11
10
9
8
7
2
· (0.725 Ω · 1.8V + 0.7Ω · (2.7V - 1.8V))
DSON(HS)
0.1µF
10µF
C8
C3
V
IN
· V
LX2
O2
see Table 3
LX1
C7
0.01µF
+ R
L2
see Table 3
DSON(LS)
L1
4.7µF
C2
V
1
O2
· (V
IN
4.7µF
C1
-V
1
GND
V
O2
AAT2510
O1
))
0.01µF
C6
2510.2005.08.1.5