Pin Description

Pin No.

Name

Function

1V

IN

Power supply input voltage.

2

GND

Power supply ground.

3V

NEG

Negative output voltage created by inverting V

4V

NSW

V

5

CE

Chip enable input. This pin is high for normal operation and low for shutdown. (See

Shutdown and Load Disconnect section in the Detailed Device Description division).

6

SDP

Positive side shutdown input. This pin is low for normal operation and high for positive

side shutdown and V

in the Detailed Device Description division).

7

SDN

Negative side shutdown input. This pin is low for normal operation and high for negative

side shutdown and V

in the Detailed Device Description division).

8C

2

−

The negative terminal of inverting charge-pump capacitor, C2.

9C

2

+

The positive terminal of inverting charge-pump capacitor, C2.

10

V

05

Regulated +5V output.

11

V

PSW

V

12

V

DBL

Voltage Doubler Output. (2.85V

≤ V

13

C

1

+

The positive terminal of doubling charge-pump capacitor, C1.

14

C

1

−

The negative terminal of doubling charge-pump capacitor, C1.

www.national.com

2