The TC1305 combines two CMOS Low Dropout Regulators
and a Microprocessor Monitor in a space saving
10-Pin MSOP package. Designed specifically for
battery operated systems, total supply current is
typically 120μA at full load, 20 to 60 times lower than in
bipolar regulators.
The TC1305 features selectable output voltages for
higher design flexibility. The tri-state SELECT input pin
allows the user to select VOUT1 and VOUT2 from 3
different values (2.5V, 2.8V and 3.0V).
An active low RESET is asserted when the detected
voltage (VDET) falls below the 2.63V reset voltage
threshold. The RESET output remains low for 300msec
(typical) after VDET rises above reset threshold. When
the shutdown controls (SHDN1 and SHDN2) are low,
the regulator output voltages fall to zero, RESET output
remains valid and supply current is reduced to 20μA
(typ.)
Other key features for the device include ultra low noise
operation, fast response to step changes in load and
very low dropout voltage (typically 150mV at full load).
The device also incorporates both over temperature
and over current protection. Each regulator is stable
with an output capacitor of only 1μF and has a
maximum output current of 150mA. The TC1305 is
featured in a 10-Pin MSOP package with selective
output voltages.