2002 Microchip Technology Inc.
DS21437B-page 3
TC57
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Pin No.
(5-Pin SOT-23A)
Symbol
Description
1
GND
Ground terminal.
2
V
IN
Supply voltage input. Positive input voltage of 2.7V to 8.0V.
3
V
OUT
Regulator voltage sense input. Connects to the collector of the external PNP pass transistor.
4
EXT
Base Drive for the external PNP pass transistor.
5
SHDN
Shutdown Input. The device is enabled when SHDN d V
IL
. The device enters a low power
shutdown state when SHDN e V
IH
. During shutdown, the output is disabled, and supply current
falls to less than 1礎.
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