TC1263
DS21374D-page 6 2002-2012 Microchip Technology Inc.
3.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
3.1 Regulated Output Voltage (V
OUT
)
V
OUT
is a regulated voltage output.
3.2 Ground (GND)
Ground terminal.
3.3 Reference Bypass (BYPASS)
Reference bypass input. Connect a 470 pF to the
BYPASS input to further reduce output noise.
3.4 Out-of-Regulation Flag (ERROR)
Out-of-Regulation Flag (open-drain output). ERROR
goes low when V
OUT
is out-of-tolerance by
approximately – 5%.
3.5 Shutdown Control (SHDN)
Shutdown control input. The regulator is fully enabled
when a logic-high is applied to SHDN
. The regulator
enters shutdown when a logic-low is applied to this
input. During shutdown, output voltage falls to zero and
supply current is reduced to 0.05 µA (typical).
3.6 Unregulated Supply (V
IN
)
V
IN
is an unregulated supply input.
Pin No.
(8-Pin SOIC)
Pin No.
(5-Pin DDPAK)
(5-Pin TO-220)
Symbol Description
15V
OUT
Regulated voltage output
2 3 GND Ground terminal
3 — NC No connect
4 1 BYPASS Reference bypass input
5 — ERROR
Out-of-Regulation Flag (open-drain output).
6 2 SHDN
Shutdown control input
7 — NC No connect
84V
IN
Unregulated supply input
