TC57 Datasheet, PDF (3/16 Pages) Microchip Technology – Line Regulator Controller

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)
1
2
3
4
5
Symbol
GND
V_IN
V_OUT
EXT
SHDN
Description
Ground terminal.
Supply voltage input. Positive input voltage of 2.7V to 8.0V.
Regulator voltage sense input. Connects to the collector of the external PNP pass transistor.
Base Drive for the external PNP pass transistor.
Shutdown Input. The device is enabled when SHDN ≤ V_IL. The device enters a low power
shutdown state when SHDN ≥ V_IH. During shutdown, the output is disabled, and supply current
falls to less than 1µA.
© 2002 Microchip Technology Inc.
DS21437B-page 3