TC563302ECT Ver la hoja de datos (PDF) - Microchip Technology

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TC563302ECT

150mA, 10V LDO with Shutdown

Microchip Technology 

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

VSS

VIN

SHDN

(NC)

VOUT

Ground.

Supply voltage input.

Shutdown input.

No connection.

Regulated voltage output.

Description

TC56

3.0 DETAILED DESCRIPTION

The TC56 is a precision, fixed output LDO. Unlike

bipolar regulations, the TC56 supply current does not

increase with load current.

3.1 Output Capacitor

A 10µF tantalum capacitor from VOUT to ground is

recommended. The output capacitor should have an

effective series resistance greater than 0.1Ω and less

than 5.0Ω, and a resonant frequency above 1MHz. It is

recommended that a 4.7µF capacitor be connected

from VIN to GND. When operating from sources other

than batteries, supply noise rejection and transient

response can be improved by increasing the value of

the input and output capacitors and employing passive

filtering techniques.

3.2 Shutdown Input

The TC56 enters a low power shutdown mode when

the shutdown control input (SHDN) is low. During

shutdown, the regulator is disabled and supply current

is reduced to 0.1µA (max). Normal operation is

restored when SHDN is driven high. If not required, the

SHDN input can be tied to VIN.

 2002 Microchip Technology Inc.

DS21436B-page 3

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