Typical Application (Continued)
Input
LM317M
VO
R1
R2
VADJ
IADJ
IOMAX
=
V-----RR-----E1----F---
+
IADJ
≅
1----.--2---5----V---
R1
IOMAX
=
R---V--1---R--+--E---R--F--2--
+
IADJ
≅
---1----.-2----5----V-----
R1 + R2
5mA < IO < 500mA
Figure 12. Current Regulator
IO
Output
© 2003 Fairchild Semiconductor Corporation
LM317M Rev. 1.1.0
7
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