tc1073 Microchip Technology Inc., tc1073 Datasheet - Page 11

• Manufacturer Part Number: tc1073
• Description: 50ma And 100ma Cmos Ldos With Shutdown, Error Output And V Bypass Ref
• Manufacturer: Microchip Technology Inc.

3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
Connect 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 the negative side of the 1 µF typical
input decoupling capacitor close to GND and the
negative 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 SHDN. During shutdown,
output voltage falls to zero, ERROR is open-circuited
and supply current is reduced to 0.5 µA (maximum).
© 2007 Microchip Technology Inc.
(6-Pin SOT-23)
Pin No.
1
2
3
4
5
6
PIN DESCRIPTIONS
Input Voltage Supply (V
Ground (GND)
Shutdown Control Input (SHDN)
PIN FUNCTION TABLE
IN
to ground is recommended for
Symbol
ERROR
Bypass
SHDN
V
GND
V
OUT
IN
Unregulated supply input.
Ground terminal.
Shutdown control input.
Out-of-Regulation Flag. (Open drain output).
Reference bypass input.
Regulated voltage output.
OUT
IN
Table
)
to GND.
IN
3-1.
pin. If
3.4
ERROR goes low when V
approximately – 5%.
3.5
output noise.
3.6
Connect the output load to V
connect the positive side of the LDO output capacitor
as close as possible to the V
Connecting a 470 pF to this input further reduces
Description
Out-Of-Regulation Flag (ERROR)
Reference Bypass Input (Bypass)
Regulated Voltage Output (V
TC1072/TC1073
OUT
OUT
OUT
is out-of-tolerance by
pin.
of the LDO. Also
DS21354D-page 11
OUT
)