TC1265-3.0VAT Microchip Technology, TC1265-3.0VAT Datasheet - Page 7
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TC1265-3.0VAT
Manufacturer Part Number
TC1265-3.0VAT
Description
IC REG LDO 3.0V 800MA SD TO220-5
Manufacturer
Microchip Technology
Specifications of TC1265-3.0VAT
Regulator Topology
Positive Fixed
Voltage - Output
3V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
1.2V @ 800mA
Number Of Regulators
1
Current - Output
800mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-5 (Straight Leads)
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
3 V
Output Type
Fixed
Dropout Voltage (max)
1400 mV
Output Current
800 mA
Line Regulation
0.001 %
Load Regulation
0.002 % / mA
Voltage Regulation Accuracy
0.5 %
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
TC126530VAT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TC1265-3.0VAT
Manufacturer:
Microchip Technology
Quantity:
135
Company:
Part Number:
TC1265-3.0VAT
Manufacturer:
MICROCHIP
Quantity:
12 000
4.0
The TC1265 is a precision, fixed-output LDO. Unlike
bipolar regulators, the TC1265’s supply current does
not increase with load current. In addition, V
remains stable and within regulation over the entire
0 mA to I
consideration in RTC and CMOS RAM battery back-up
applications).
Figure 4-1
FIGURE 4-1:
4.1
A 1 µF (min.) capacitor from V
required. The output capacitor should have an Effective
Series Resistance (ESR) greater than 0.1Ω and less
than 5Ω. A 1 µF capacitor should be connected from
V
between the regulator and the AC filter capacitor, or if a
battery is used as the power source. Aluminum electro-
lytic or tantalum capacitor types can be used. Since
many aluminum electrolytic capacitors freeze at
approximately
recommended for applications operating below -25°C.
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 by employing passive filtering
techniques.
© 2006 Microchip Technology Inc.
Shutdown Control
(to CMOS Logic or Tie
to V
IN
IN
to GND if there is more than 10 inches of wire
, if unused)
+
DETAILED DESCRIPTION
Battery
Output Capacitor
LOADMAX
shows a typical application circuit.
+
1 µF
C
1
Processor RESET Signal
if ERROR is used as a
-30°C,
C
GND
load current range (an important
SHDN
V
3
IN
Required Only
(See Text)
TC1265
Typical Application Circuit.
ERROR
solid
V
OUT
OUT
tantalums
+
V
1 µF
C
+
+
2
0.2 µF
C
to ground is
R
1 M
3
1
V
OUT
BATTLOW
or RESET
OUT
are
4.2
ERROR is driven low whenever V
regulation by more than – 5% (typ.). This condition may
be caused by low input voltage, output current limiting,
or thermal limiting. The ERROR threshold is 5% below
rated V
voltage value (e.g., ERROR = V
5.0V regulator and 2.85V (typ.) for a 3.0V regulator).
ERROR output operation is shown in
Note that ERROR is active when V
V
As shown in
battery low flag or as a processor RESET signal (with
the addition of timing capacitor C
chosen to maintain ERROR below V
RESET input for at least 200 ms to allow time for the
system to stabilize. Pull-up resistor R
V
FIGURE 4-2:
ERROR
TH
OUT
V
V
OUT
V
V
and inactive when V
OL
, V
TH
IH
IN
OUT
ERROR Output
or any other voltage less than (V
regardless of the programmed output
Figure
4-1, ERROR can be used as a
ERROR Output Operation.
OUT
is above V
OL
3
). R
TC1265
at 4.75V (typ.) for a
OUT
IH
OUT
Figure
DS21376D-page 7
1
1
of the processor
x C
TH
can be tied to
is at or below
Hysteresis (V
falls out of
+ V
3
IN
should be
4-2.
+ 0.3V).
H
.
H
)