AME5251 Datasheet, PDF (10/19 Pages) Analog Microelectronics – Dual 1A, 1.5MHz Synchronous Step-Down Converter

AME
AME5251
Dual 1A, 1.5MHz Synchronous
Step-Down Converter
VIN
2.5V to 5.5V
IN
SW
AME5251
C_IN
4.7µF
CER
EN
FB
GND
2.2µH _{VOUT 1.2V}
CFWD
150K
150K
C_OUT
10µF
CER
Figure 2: 1.2V Step-Down Regulator
C_FWD: 22pF~220pF
VIN
3.3 to 5.5V
IN
SW
AME5251
CIN
4.7µF
CER
EN
FB
GND
2.2µH _{VOUT 1.5V}
CFWD
150K
100K
Figure 3: 1.5V Step-Down Regulator
C_FWD: 22pF~220pF
VIN
2.5 to 5.5V
IN
SW
AME5251
CIN
4.7µF
CER
EN
FB
GND
2.2µH _{VOUT 1.6V}
CFWD
150K
90K
C_OUT
10µF
CER
Figure 4: 1.6V Step-Down Regulator
C_FWD: 22pF~220pF
10
C_IN
4.7µF
CER
IN
SW
AME5251
EN
FB
GND
2.2µH _{VOUT 2.5V}
CFWD
150K
47.3K
COUT
10µF
CER
Figure 5: 2.5V Step-Down Regulator
C_FWD: 22pF~220pF
VIN
3.6 to 5.5V
IN
SW
AME5251
CIN
4.7µF
CER
EN
FB
GND
2.2µH _{VOUT 3.3V}
CFWD
150K
33.3K
C_OUT
10µF
CER
Figure 6: 3.3V Step-Down Regulator
C_FWD: 22pF~220pF
Rev. A.05