AAT1152 Advanced Analogic Technologies, AAT1152 Datasheet - Page 13

• Manufacturer Part Number: AAT1152
• Description: 850kHz 1A Synchronous Buck DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

1152.2003.01.0.9
Figure 5: AAT1152 Layout
Top Layer
Figure 4: Lithium-Ion to 1.5V Output Converter
Vin+ 2.7V-5.5V
10 F
C1
100
80
60
40
20
0
10
C1 Murata 10 F 6.3V X5R GRM42-6X5R106K6.3
C2 MuRata 100 F 6.3V GRM43-2 X5R 107M 100 F 6.3V
L1 Sumida CDRH5D 18-4R 1 H
R2
100k
0.1 F
R1 100
850kHz 1A Synchronous Buck DC/DC Converter
C3
2.7V
3.6V
EN
1.5V Efficiency vs. I
U1
AAT1152-1.5
Vp
Vcc
EN
Sgnd
4.2V
R5
100k
V-
Pgnd
Iout (mA)
Pok
FB
LX
100
Pok
LX
4.1 H
L1
OUT
Figure 6: AAT1152 Layout
Vo+ 1.5V 1A
Bottom Layer
C2
100 F
1000
AAT1152
13