Copyright

© ANPEC Electronics Corp.

Rev. A.1 - Nov., 2012

APL3520A/B/C/D

www.anpec.com.tw

6

Pin Description

PIN

NO.

NAME

FUNCTION

1

GND

Ground.

2

VIN

Power Supply Input. Connect this pin to external DC supply.

EN1

(APL3520A/C)

Enable Input. Pulling this pin to high will enable the device and pulling this pin to low will

disable device. The EN1 pin cannot be left floating.

3

ENB1

(APL3520B/D)

Enable Input. Pulling this pin to high will disable the device and pulling this pin to low will

enable device. The ENB1 pin cannot be left floating.

EN2

(APL3520A/C)

Enable Input. Pulling this pin to high will enable the device and pulling this pin to low will

disable device. The EN2 pin cannot be left floating.

4

ENB2

(APL3520B/D)

Enable Input. Pulling this pin to high will disable the device and pulling this pin to low will

enable device. The ENB2 pin cannot be left floating.

5

OCB2

Fault Indication Pin. This pin goes low when a current limit or an over-temperature condition

is detected in VOUT2 after a 10ms deglitch time.

6

VOUT2

Output Voltage Pin. The output voltage follows the input voltage. When ENB2 is high or

EN2 is low the output voltage is discharged by an internal resistor.

7

VOUT1

Output Voltage Pin. The output voltage follows the input voltage. When ENB1 is high or

EN1 is low the output voltage is discharged by an internal resistor.

8

OCB1

Fault Indication Pin. This pin goes low when a current limit or an over-temperature condition

is detected in VOUT1 after a 10ms deglitch time.

-

EP

Exposed Pad. Connect it to a large ground plane for heat sinking. (TDFN2x2-8, MSOP-8P)