© 2002 Microchip Technology Inc.

DS21350B-page 5

TC1054/TC1055/TC1186

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

Unregulated supply input.

2

GND

Ground terminal.

3

SHDN

Shutdown control input. The regulator is fully enabled when a logic high is applied to this

input. The regulator enters shutdown when a logic low is applied to this input. During

shutdown, output voltage falls to zero, ERROR is open circuited and supply current is

reducedto0.5

µA(max).

4

ERROR

tolerance by approximately – 5%.

Regulated voltage output.