NCP590

http://onsemi.com

2

Figure 1. Typical Application

NCP590

EN1

EN2

NC

ON

OFF

ON

OFF

1

mF

GND

NC

1

mF

1

mF

PIN FUNCTION

Pin No.

Symbol

Function

1

Input; Bypass directly at the IC with a 1

mF ceramic capacitor to Ground

2

EN1

3

EN2

4, 5

NC

NC; Do not make connection to these pins

6

GND

Ground

PAD

GND

The thermal pad should be connected to ground for best thermal performance. Float if necessary

7

Output 2; Bypass to GND with a capacitor, 4.7

mF ≥ C ≥ 0.7 mF, any ESR

8

Output 1; Bypass to GND with a capacitor, 4.7

mF ≥ C ≥ 0.7 mF, any ESR

Figure 2. Block Diagram

Current Limit

Saturation Sense

Thermal Protection

Error

Amplifier

Programmable

Reference

+

-

Current Limit

Saturation Sense

Thermal Protection

Error

Amplifier

+

-

Vout2

Vout1

GND

EN1

EN2