TC1070VCT713 Microchip Technology, TC1070VCT713 Datasheet - Page 9

• Manufacturer Part Number: TC1070VCT713
• Description: IC,VOLT REGULATOR,ADJUSTABLE,+1.2 TO +5.5V,CMOS,TSOP,5PIN,PLASTIC
• Manufacturer: Microchip Technology

Specifications of TC1070VCT713

• Rohs Compliant: YES
• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.2 ~ 5.5 V
• Voltage - Input: 2.7 ~ 6 V
• Voltage - Dropout (typical): 0.085V @ 50mA
• Number Of Regulators: 1
• Current - Output: 50mA (Min)
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 6 V
• Output Voltage: 1.165 V to 5.5 V
• Output Type: Adjustable
• Dropout Voltage (max): 250 / 400 mV
• Output Current: 50 mA
• Line Regulation: 0.05 %
• Load Regulation: 0.5 %
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Reference Voltage: 1.2 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.0
The TC1070, TC1071 and TC1187 are adjustable
output voltage regulators. (If a fixed version is desired,
please see the TC1014/TC1015/TC1185 data sheet –
DS21335.) Unlike bipolar regulators, the TC1070,
TC1071 and TC1187 supply current does not increase
with load current. In addition, V
within regulation over the entire 0 mA to I
ating load current range (an important consideration in
RTC and CMOS RAM battery back-up applications).
Figure 4-1
regulator is enabled any time the shutdown input
(SHDN) is at or above V
when SHDN is at or below V
controlled by a CMOS logic gate or I/O port of a
microcontroller. If the SHDN input is not required, it
should be connected directly to the input supply. While
in shutdown, supply current decreases to 0.05 µA
(typical) and V
FIGURE 4-1:
 2010 Microchip Technology Inc.
Battery
(from Power Control Logic)
3.0V
Shutdown Control
DETAILED DESCRIPTION
+
shows a typical application circuit. The
OUT
+
1 µF
C1
1
2
3
falls to zero volts.
SHDN
GND
V
IN
TC1070
TC1071
TC1187
Battery-Operated Supply.
IH
, and shutdown (disabled)
V
ADJ
OUT
OUT
1 µF
5
C2 +
4
IL
remains stable and
. SHDN may be
OUTmax
470K
470K
R1
R2
+2.45V
oper-
TC1070/TC1071/TC1187
4.1
The output voltage setting is determined by the values
of R
these resistors should be between 470K and 3M to
minimize bleeder current.
The output voltage setting is calculated using the
following equation:
EQUATION 4-1:
The voltage adjustment range of the TC1070, TC1071
and TC1187 is from V
4.2
A 1 µF (minimum) capacitor from V
recommended. The output capacitor should have an
effective series resistance greater than 0.1 and less
than 5.0, and a resonant frequency above 1 MHz.
Aluminum electrolytic or tantalum capacitor types can
be used. (Since many aluminum electrolytic capacitors
freeze at approximately -30°C, solid tantalums are rec-
ommended 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 employing passive filtering
techniques.
4.3
A 1 µF capacitor should be connected from V
GND if there is more than 10 inches of wire between
the regulator and the AC filter capacitor, or if a battery
is used as power source.
1
and R
Adjust Input
Output Capacitor
Input Capacitor
2
(see
V
OUT
Equation
=
REF
V
REF
to (V
4-1). The ohmic values of

IN
R
----- -
R
– 0.05V).
1
2

OUT
1
DS21353E-page 9
to ground is
IN
to