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Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B1587
IN
OUT
ADJ
BAY
B1587
C1
R1
R2
VOUT
Fig 5. Typical Adjustable Regulator
VOUT = VREF (1 + R2) + IADJ R2
R1
VIN
C2
BAY
B1587
Fig. 6
Improving Ripple Rejection
V
IN
R1
R2
150µF
10µF*
121Ω
1%
365Ω
1%
+
+
10µF
C1
*C1 improves ripple rejection. X
C
should be ~ R1 at ripple frequency.
5V
ADJ
IN
OUT
(Note A)
Note A: V
IN (MIN) = ( Intended VOUT ) + ( V DROPOUT (MAX) )
V
OUT
BAY
B1587
Fig.7
5V Regulator with Shutdown
V
IN
100µF
121Ω
1%
365Ω
1%
+
+
10µF
5V
ADJ
IN
OUT
(Note A)
Note A: V
IN (MIN) = ( Intended VOUT ) + ( V DROPOUT (MAX)
)
1k
1k
TTL
Output
2N3904
LOAD
ADJ
BAY
B1587
Fig.4 4A Current Output Regulator
V
IN
C
1
R
1
OUT
IN