AMS1073 AMS [Advanced Monolithic Systems Ltd], AMS1073 Datasheet - Page 5

• Manufacturer Part Number: AMS1073
• Description: 1.2A Peak Output Current
• Manufacturer: AMS [Advanced Monolithic Systems Ltd]

TYPICAL APPLICATION CIRCUITS
Resistor Selection for Common Output Voltages
Notes:
1) D3 can be installed if V
2) D2 can be installed if V
3) No need for both D2 and D3
OFF ON
V
OUT
V
1.8
2.5
3.3
IN
5
(V)
10uF
C1
IN
OUT
80.6 (1%)
49.9 (1%)
49.9 (1%)
49.9 (1%)
R1 (kΩ)
< 5V
Advanced Monolithic Systems
< 5V
1N4148
(Optional)
D3
1.4MHz, 3.3V Output at 1A Step-Down Converter
5
4
IN
EN
AMS1073
64.9 (1%)
23.7 (1%)
16.2 (1%)
9.53 (1%)
R2 (kΩ)
GND
SW
5
BS
FB
U1
http://www.ams-semitech.com
1
6
3
D1
10nF
C2
16.2K
R2
4.7uH
L1
49.9K
R1
AMS1073
D2
1N4148
(Optional)
Vout=0.81X(1+R1/R2)
C3
22uF
V
3.3V
OUT