TC2186 Microchip Technology Inc., TC2186 Datasheet - Page 8

• Manufacturer Part Number: TC2186
• Description: 50 Ma, 100 Ma, And 150 Ma Cmos Ldos With Shutdown And Error Output
• Manufacturer: Microchip Technology Inc.

TC2054/2055/2186
3.0
The descriptions of the pins are listed in Table 3-1.
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 (max).
DS21663C-page 8
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 0.5µA (max).
Out-of-Regulation Flag. (Open-drain output). This output goes low when V
out-of-tolerance by approximately -5%.
Regulated voltage output.
IN
IN
)
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
Description
Out-of-Regulation Flag (ERROR)
Regulated Voltage Output (V
© 2006 Microchip Technology Inc.
OUT
of the LDO. Also
OUT
pin.
OUT
OUT
)
is