TC1301A-SFCVUATR Microchip Technology, TC1301A-SFCVUATR Datasheet - Page 15

• Manufacturer Part Number: TC1301A-SFCVUATR
• Description: IC REG LDO DUAL 300/150MA 8MSOP
• Manufacturer: Microchip Technology

Specifications of TC1301A-SFCVUATR

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.5V, 2.8V, 2.32V (Reset)
• Voltage - Input: 2.7 ~ 6 V
• Voltage - Dropout (typical): -, 0.15V @ 150mA
• Number Of Regulators: 2
• Current - Output: 300mA (Min), 150mA (Min)
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -

5.10
V
the TC1301A.
time from shutdown (t
wake-up time is dependant upon the frequency of
operation. The faster the SHDN pin is pulsed, the
shorter the wake-up time will be.
FIGURE 5-1:
5.11
For the TC1301B, the SHDN1 input pin is used to
control V
V
FIGURE 5-2:
© 2008 Microchip Technology Inc.
OUT1
OUT2
V
SHDN2
V
V
V
SHDN1
V
, independent of the logic input on SHDN1.
SHDN2
IN
OUT1
OUT2
V
will rise independent of the level of SHDN2 for
IN
OUT1
OUT2
OUT1
TC1301A SHDN2 Timing
TC1301B SHDN1 / SHDN2 Timing
. The SHDN2 input pin is used to control
Figure 5-1
t
t
wk
wk
WK
t
s
TC1301A Timing.
TC1301B Timing.
t
s
) and the settling time (t
is used to define the wake-up
S
). The
5.12
The TC1301A/B integrates an independent voltage
reset monitor that can be used for low-battery input
voltage detection or a microprocessor Power-On Reset
(POR) function. The input voltage for the detector is
different for the TC1301A than it is for the TC1301B.
For the TC1301A, the input voltage to the detector is
pin 8 (V
detector is internally connected to the output of LDO #1
(V
pared to an internal threshold. When the voltage on the
V
output pin is low. When the voltage on the V
rises above the voltage threshold, the RESET output
will remain low for typically 300 ms (RESET time-out
period). After the RESET time-out period, the RESET
output voltage will transition from the low output state
to the high output state if the detected voltage pin
remains above the threshold voltage.
The RESET output will be driven low within 180 µs of
V
RESET output will remain valid for detected voltages
greater than 1.2V overtemperature.
5.13
Figure 5-3
TC1301A. This diagram is also used to define the
RESET active time-out period (t
RESET delay time (t
FIGURE 5-3:
DET
DET
OUT1
1V
V
pin is below the threshold voltage, the RESET
going below the RESET voltage threshold. The
V
RESET
DET
). The detected voltage is sensed and com-
DET
TH
V
TC1301A RESET Timing
DET
shows the RESET timing waveforms for the
). For the TC1301B, the input voltage to the
and RESET Operation
RESET Time
RPD
TC1301A RESET Timing.
).
TC1301A/B
V
OH
RPU
DS21798C-page 15
) and the V
V
OL
T
DET
RPD
DET
pin