NCP703

www.onsemi.com

2

Figure 2. Simplified Schematic Block Diagram

IN

THERMAL

SHUTDOWN

UVLO

MOSFET

DRIVER WITH

CURRENT LIMIT

AUTO LOW

POWER MODE

INTEGRATED

SOFT−START

ACTIVE

DISCHARGE

EN

BANDGAP

REFERENCE

ENABLE

LOGIC

EN

OUT

GND

Table 1. PIN FUNCTION DESCRIPTION

Pin No.

XDFN6

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

N/C

Not connected.

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 regu-

lator 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.

Table 2. ABSOLUTE MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Input Voltage (Note 1)

−0.3 V to 6 V

V

Output Voltage

V

Enable Input

V

Output Short Circuit Duration

Indefinite

s

Maximum Junction Temperature

150

°C

Storage Temperature

−55 to 150

°C

ESD Capability, Human Body Model (Note 2)

2000

V

ESD Capability, Machine Model (Note 2)

200

V

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

2. This device series incorporates ESD protection and is tested by the following methods:

ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)

ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)

Latchup Current Maximum Rating tested per JEDEC standard: JESD78.