LM317L
3 TERMINAL ADJUSTABLE REGULATOR
SLCS144 − JULY 2004
APPLICATION INFORMATION
R2 = 1.5 kΩ
R1 = 470
Ω
Adjustment
VI
Input
Output
LM317L
Input
C1 = 0.1
µF
C2 = 1
µF
Output
Adjust
Output
VO
R3 =
240
Ω
R2 = 5.1 kΩ
R4 =
2 kΩ
2N2905
C1 = 25
µF
VI
LM317L
Input
Output
R1 =
470
Ω
VO = 15 V
1N4002
Adjustment
LM317L
R3 = 50 kΩ
Adjustment
Figure 5. Tracking Preregulator Circuit
Figure 6. Slow-Turnon 15-V Regulator Circuit
LM317L
VI
Input
Output
240
Ω
Adjustment
LM317L
VI
Input
Output
24
Ω
1.1 kΩ
ICHG
Adjustment
VBE
R
+
V
BE
I
CHG
Figure 7. 50-mA Constant-Current
Battery-Charger Circuit
V−
Figure 8. Current-Limited 6-V Charger
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
5
TI [ TEXAS INSTRUMENTS ]
