PTN78000A
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SLTS246A – APRIL 2005 – REVISED MAY 2005
PIN ASSIGNMENT
1
PTN78000A
(Top View)
4
5
2
3
TERMINAL FUNCTIONS
TERMINAL
NAME
V
O
V
I
N/C
V
O
Adjust
GND
NO.
1
2
3
4
5
I
O
I/O
I/O
I
DESCRIPTION
The negative output voltage power node with respect to the GND node. It is also the reference for the
V
O
Adjust
control inputs.
The positive input voltage power node to the module, which is referenced to common GND.
This pin is active and must be isolated from any electrical connection.
A 1% resistor must be connected between pin 4 and pin 5 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
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.
The common ground connection for the
V
I
and
V
O
power connections.
4
TI [ TEXAS INSTRUMENTS ]
