Datasheet

PIN ASSIGNMENT
PTN78060
(TopView)
1
2
7
6
543
PTN78060W , PTN78060H
www.ti.com ................................................................................................................................................... SLTS229B – NOVEMBER 2004 – REVISED JUNE 2009
TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME NO.
This is the common ground connection for the V
I
and V
O
power connections. It is also the 0-VDC
GND 1, 7
reference for the Inhibit and V
O
Adjust control inputs.
V
I
2 I The positive input voltage power node to the module, which is referenced to common GND.
The Inhibit pin is an open-collector/drain active-low input that is referenced to GND. Applying a low-level
ground signal to this input disables the module ' s output and turns off the output voltage. When the Inhibit
Inhibit 3 I
control is active, the input current drawn by the regulator is significantly reduced. If the Inhibit pin is left
open-circuit, the module produces an output whenever a valid input source is applied.
A 1% resistor must be connected between this pin and GND (pin 7) to set the output voltage. If left
open-circuit, the output voltage is set to a default value. The temperature stability of the resistor should be
V
O
Adjust 4 I
100 ppm/ ° C (or better). The standard resistor value for a number of common output voltages is provided
in the application information.
The sense input allows the regulation circuit to compensate for voltage drop between the module and the
V
O
Sense 5 I load. For optimum voltage accuracy, V
O
Sense should be connected to V
O
. If the sense feature is not
used, this pin may be left disconnected.
V
O
6 O The regulated positive power output with respect to the GND node.
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