ADJUSTABLE PRECISION SHUNT REGULATORS
Typical Application (Continued)
Data Sheet
AZ431-B
VIN
R1
8.2K
AZ1117
Adjust
VOUT
5V, 1A
R2
250
AZ431-B
R3
250
Figure 20. Precision 5V 1A Regulator
C1
R2 680
R1
3
COMP
PWM Controller
4
VFB
U2
C2
2
PS521
R3
R4
R5
Q1
AZ431-B
Figure 21. PWM Converter with Reference
VOUT
Dec. 2012 Rev. 3.3
BCD Semiconductor Manufacturing Limited
12