AAT1150_06 Datasheet, PDF (15/17 Pages) Advanced Analogic Technologies – 1MHz 1A Step-Down DC/DC Converter

AAT1150
1MHz 1A Step-Down DC/DC Converter
AAT1150 Dissipation
P = ^{IO2 ⋅ (RDS(ON)H ⋅ VO + RDS(ON)L ⋅ (VIN -VO))}
V_IN
+ (t_sw ⋅ F_S ⋅ I_O + I_Q) ⋅ V_IN
(0.14Ω ⋅ 1.5V + 0.145Ω ⋅ (3.6V - 1.5V))
=
+ (20nsec ⋅ 830kHz ⋅ 1.0A + 0.3mA) ⋅ 3.6V = 0.203W
3.6V
T_J(MAX) = T_AMB + Θ_JA ⋅ P_LOSS = 85°C + 150°C/W ⋅ 0.203W = 115°C
Manufacturer
TaiyoYuden
Toko
Sumida
Sumida
MuRata
MuRata
Part Number
NPO5DB4R7M
A914BYW-3R5M-D52LC
CDRH5D28-4R2
CDRH5D18-4R1
LQH55DN4R7M03
LQH66SN4R7M03
Value
4.7μH
3.5μH
4.2μH
4.1μH
4.7μH
4.7μH
Max DC
Current
1.4A
1.34A
2.2A
1.95A
2.7A
2.2A
DCR
0.038
0.073
0.031
0.057
0.041
0.025
Table 1: Surface Mount Inductors.
Size (mm)
L×W ×H
5.9 × 6.1 × 2.8
5.0 × 5.0 × 2.0
5.7 × 5.7 × 3.0
5.7 × 5.7 × 2.0
5.0 × 5.0 × 4.7
6.3 × 6.3 × 4.7
Type
Shielded
Shielded
Shielded
Shielded
Non-Shielded
Shielded
Manufacturer
MuRata
MuRata
MuRata
MuRata
Part Number
GRM40 X5R 106K 6.3
GRM42-6 X5R 106K 6.3
GRM21BR60J226ME39L
GRM21BR60J106ME39L
Value
10μF
10μF
22μF
10μF
Voltage
6.3V
6.3V
6.3V
6.3V
Table 2: Surface Mount Capacitors.
Temp. Co.
X5R
X5R
X5R
X5R
Case
0805
1206
0805
0805
1150.2006.09.1.5
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