TC2054-2.5VCTTR MICROCHIP [Microchip Technology], TC2054-2.5VCTTR Datasheet - Page 9

• Manufacturer Part Number: TC2054-2.5VCTTR
• Description: 50 mA, 100 mA, and 150 mA CMOS LDOs with Shutdown and Error Output
• Manufacturer: MICROCHIP [Microchip Technology]

3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
Connect the unregulated input supply to the V
there is a large distance between the input supply and
the LDO regulator, some input capacitance is
necessary for proper operation. A 1 µF capacitor,
connected from V
most applications.
3.2
Connect the unregulated input supply ground return to
GND. Also connect one side of the 1 µF typical input
decoupling capacitor close to this pin and one side of
the output capacitor C
3.3
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, the
output voltage falls to zero and the supply current is
reduced to 0.5 µA (maximum).
© 2009 Microchip Technology Inc.
Pin Number
1
2
3
4
5
PIN DESCRIPTIONS
Unregulated Supply Input (V
Ground Terminal (GND)
Shutdown Control Input (SHDN)
PIN FUNCTION TABLE
IN
to ground, is recommended for
OUT
Symbol
ERROR
SHDN
V
GND
V
OUT
to this pin.
IN
Unregulated supply input.
Ground terminal.
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 reduced to 0.5 µA (maximum).
Out-of-Regulation Flag. (Open-drain output). This output goes low when V
out-of-tolerance by approximately -5%.
Regulated voltage output.
Table
IN
IN
3-1.
)
pin. If
3.4
The open-drain ERROR flag provides indication that
the regulator output voltage is not in regulation. The
ERROR pin will be low when the output is typically
below 5% of its specified value.
3.5
Connect the output load to V
connect one side of the LDO output decoupling
capacitor as close as possible to the V
TC2054/2055/2186
Description
Out-of-Regulation Flag (ERROR)
Regulated Voltage Output (V
OUT
of the LDO. Also
DS21663D-page 9
OUT
pin.
OUT
OUT
)
is