TS1581 Datasheet, PDF (3/7 Pages) Taiwan Semiconductor Company, Ltd – 5A Dual Input Low Dropout Positive Voltage Regulator

Thermal Performance
Condition
Thermal Resistance
Junction to Ambient
Pin Description
Pin No.
Pin Name
Package type
TO-220-5L
TO-263-5L
Typ
50
60
Pin Description
Unit
o_C/W
1
Sense
This pin is the positive side of the reference voltage for this device. With this pin it is
possible to Kelvin Sense the output voltage at the load.
2
Adjust / Ground This pin is the negative side of the reference voltage for this device. Transient
response can be improved by adding a small bypass capacitor from the adjust pin to
ground.
3
Output
This pin is power output of the device.
4
Control
This pin is the supply pin for the control circuitry for the device. The current flow into
this pin will be about 1% of the output current. For the device to regulate, the voltage
at this pin must be 1.3V greater than the output voltage.
5
Power
This pin is the collector of the power transistor. The output load current is supplied
through this pin. The voltage at this pin must be 0.7V greater than the output voltage
for the device to regulate.
TS1581 series
3-3
2003/12 rev. B