www.ti.com

PIN ASSIGNMENT

PTN78020A

(Top View)

1

2

7

6

5

4

3

PTN78020A

SLTS244A – APRIL 2005 – REVISED MAY 2005

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

1, 7

O

proper operation, pins 1 and 7 must be connected.

2

I

The positive input voltage power node to the module, which is referenced to common GND.

N/C

3

This pin is active and must be isolated from any electrical connection.

A 1% resistor must be connected between pin 4 and pin 7 to set the output voltage of the module lower

than -3 V. If left open-circuit, the output voltage defaults to -3 V. The temperature stability of the resistor

4

I

should be 100 ppm/°C (or better). The set-point range is -15 V to -3 V. The standard resistor value for a

number of common output voltages is provided in the application information.

N/C

5

This pin is active and must be isolated from any electrical connection.

GND

6

I/O

4