TC1263_13 datasheet(6/18 Pages) MICROCHIP

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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 (VOUT)

VOUT 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

VOUT is

out-of-tolerance

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 (VIN)

VIN is an unregulated supply input.

Pin No.

(8-Pin SOIC)

Pin No.

(5-Pin DDPAK)

(5-Pin TO-220)

Symbol

Description

VOUT

Regulated voltage output

GND

Ground terminal

—

No connect

BYPASS

Reference bypass input

—

ERROR

Out-of-Regulation Flag (open-drain output).

SHDN

Shutdown control input

—

No connect

VIN

Unregulated supply input

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