Datasheet
LR8
DS20005399A-page 4 2015 Microchip Technology Inc.
2.0 PIN DESCRIPTION
The locations of the pins are listed in Package Type.
3.0 TYPICAL APPLICATION CIRCUITS
.
FIGURE 3-1: Typical Application Circuit
FIGURE 3-2: High-Input Voltage, 5.0V Output Linear Regulator
TABLE 2-1: PIN DESCRIPTION
Function Description
VIN Regulator input. 13.2 - 450V.
VOUT Regulator output.
ADJ Output voltage adjust
LR8
V
IN
*
* Required for conditions where V
IN
is less than V
OUT
.
R
1
R
2
C
2
C
1
R
LOAD
V
OUT
VOUT
ADJ
VIN
V
IN
=
17 to 450V
*
R
1
6.04kΩ
1%
C
2
1.0μF
C
1
R
LOAD
≤16.5kΩ
V
OUT
= 5.0V
R
2
18.2kΩ
1%
* Required for conditions where V
IN
is less than V
OUT
V
OUT
= 1.20V 1+
R
2
+ I
ADJ
R
1
LR8
VOUT
ADJ
VIN