CS5203 datasheet(3/6 Pages) FCI

3 / 6 page

PIN FUNCTION ( 5-L e a d)

B lo c k D ia gr a m

Sense (Pin 1) : T his pin is the positive side of the

reference voltage. W ith this pin it is possible to Kelvin

Sense the output voltage at the load.

Ad just (Pin 2) : This pin is the negative side of the

reference voltage. Adding a small bypass capacitor from

the Adjust pin to ground improves the transient response.

For fixed voltage devices the Adjust pin is also brought

out to allow the user to add a bypass capacitor.

GND (Pin 2 ): For fixed voltage device this is the bottom

of the resistor divider that sets the output voltage.

(Pin 5): This pin is the collector of the power

WER

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.

(Pin 4): This pin is the supply pin for the control

NTROL

circuitry. The current flow into this pin will be about 1% of

the output current. The voltage at this pin must be 1. 3V

greater than the output volta ge for the device to regulate.

Ou tput (Pin 3): This is the power outputof the device.

V CONTROL

V OUT

SENSE

FOR FIXED

VOLTAGE

voltage

For adjustable

DEVICE

device

GND

ADJ

V POWER

CS-5203 3 Amp Low Dropout Positive Voltage Regulator

CS5203 Datasheet(PDF) 3 Page - First Components International