SPX1582 datasheet(3/7 Pages) SIPEX

3 / 7 page

Jun 17-06 Rev F

SPX1582 3A Ultra Low Dropout Voltage Regulator

CURRENT

LIMIT

AMPLIFIER

THERMAL OVERLOAD

VREF

VOLTAGE

REGULATION

AMPLIFIER

LIMIT

SENSE

(4) VCTRL

VIN (5)

VOUT (3)

SENSE (1)

ADJ (2)

PIN NUMBER

PIN NAME

DESCRIPTION

SENSE

Allows Kelvin sense of VOUT at the load. (Positive side of the

reference voltage of the device).

ADJ

Negative side of the reference voltage for the device. Adding a small

bypass capacitor from the ADJ pin to ground will improve the transient

response.

VOUT

Power output of the device.

VCTRL

Supply pin for the control circuitry of the device. The current flow into this

pin will be about 1% of the output current. VCTRL must be between 1.0V

and 1.3V greater than the output voltage for the device to regulate.

VIN

Output load current is supplied through this pin. VIN must be between 0.1V

and 0.8V greater than the output voltage for this device to regulate.

PIN DESCRIPTION

FUNCTIONAL DIAGRAM

Note that TAB is internally connected to Pin 3.

SPX1582 Datasheet(PDF) 3 Page - Sipex Corporation