APL1541-33KC-TR ANPEC [Anpec Electronics Coropration], APL1541-33KC-TR Datasheet - Page 4

• Manufacturer Part Number: APL1541-33KC-TR
• Description: 1A Low Dropout Fast Response Positive Adjustable Regulator and Fixed 3.3V
• Manufacturer: ANPEC [Anpec Electronics Coropration]

*C1 improves ripple rejection.XC should be approximately
equal to R1 at ripple frequency
1 0 u F
V
V
IN
IN
= 5 V
1 0 u F
Simple 5V to 3.3V Regulation
Improving Ripple Rejection
IN
IN
A P L 1 5 4 1
A D J
A P L 1 5 4 1 -3 3
G N D
O U T
3 6 5
O U T
1 %
R 2
1 2 1
R 1
1 0 u F
C 1
1 0 u F
V
O U T
V
1 5 0 u F
O U T
= 3 .3 V
T T L
1 0 u F
V
V
C
I N
I N
1.25V to 7.75V Adjustable Regulator
*Needed if device is far from filter capacitors
1 *
5V Regulator with Shutdown
1 0 u F
V
OUT
1 K
I N
I N
= 1.250V x
A P L 1 5 4 1
A P L 1 5 4 1
1 K
A D J
A D J
R 2
1 K
O U T
O U T
R 1 + R 2
R 1
1 2 1
1 2 1
3 6 5
R 1
1 %
1 %
1 0 0 u F
1 0 0 u F
C
V
5 V
2 *
O U T