NCP752

http://onsemi.com

2

IN

OUT

BANDGAP

REFERENCE

ACTIVE

DISCHARGE

MOSFET

DRIVER WITH

CURRENT LIMIT

THERMAL

SHUTDOWN

UVLO

ENABLE

LOGIC

EN

GND

AUTO LOW

POWER MODE

EN

DELAY

PG

0.8 V

−

+

−

+

Figure 2. Simplified Schematic Block Diagram

PIN FUNCTION DESCRIPTION

Pin No.

XDFN 6

Pin No.

TSOP−5

Pin Name

Description

1

5

OUT

Regulated output voltage pin. A small 1 mF ceramic capacitor is needed from this pin to

ground to assure stability.

2

4

PG

Open Drain Power Good Output.

3

2

GND

Power supply ground. Connected to the die through the lead frame. Soldered to the

copper plane allows for effective heat dissipation.

4

3

EN

Enable pin. Driving EN over 0.9 V turns on the regulator. Driving EN below 0.4 V puts

the regulator into shutdown mode.

5

N/C

Not connected. This pin can be tied to ground to improve thermal dissipation.

6

1

IN

Input pin. A small capacitor is needed from this pin to ground to assure stability.