NCP1523

http://onsemi.com

3

PIN FUNCTION DESCRIPTION

Pin

Pin Name

Type

Description

A1

GND

Power Ground

Ground connection for the NFET Power Stage and the analog sections.

B2

Power Input

Power Supply Input for the PFET Power stage and the Analog Sections of the IC.

B1

Analog Output

Connection from Power MOSFETs to the Inductor.

B2

EN

Digital Input

Enable for Switching Regulator. This pin is active high. This pin contains an internal

pulldown resistor.

C1

GND

Power Ground

Ground connection for the NFET Power Stage and the analog sections.

C2

ADJ

Analog Input

This pin is the compensation input. R1 is connected to this pin.

D1

Analog Input

This pin is connected of the converter’s output. This is the sense of the output voltage.

D2

Analog Input

Feedback voltage from the output of the power supply. This is the input to the error

amplifier.

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Minimum Voltage All Pins

−0.3

V

Maximum Voltage All Pins (Note 1)

7

V

Maximum Voltage Enable, FB, SW

V

Thermal Resistance, Junction−to−Air (Note 2)

159

°C/W

Operating Ambient Temperature Range

−40 to 85

°C

Storage Temperature Range

−55 to 150

°C

Junction Operating Temperature

−40 to 125

°C

"100

mA

ESD Withstand Voltage (Note 3)

Human Body Model

Machine Model

2.0

200

kV

V

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. According to JEDEC standard JESD22−A108B

3. This device series contains ESD protection and exceeds the following tests:

Human Body Model (HBM) $2.0 kV per JEDEC standard: JESD22−A114

Machine Model (MM) $200 V per JEDEC standard: JESD22−A115

4. Latchup current maximum rating per JEDEC standard: JESD78.