Datasheet
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PTR08060W
SLTS289G –AUGUST 2007–REVISED MARCH 2013
www.ti.com
PIN ASSIGNMENT
TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
NAME NO.
V
I
2 The positive input voltage power node to the module, which is referenced to common GND.
This is the common ground connection for the V
I
and V
O
power connections. It is also the 0 VDC reference for
GND 3
the Inhibit and V
O
Adjust control inputs.
V
O
4 The regulated positive power output with respect to the GND node.
A 1% resistor must be connected between this pin and GND (pin 3) to set the output voltage of the module
higher than 0.6 V. If left open-circuit, the output voltage defaults to this value. The temperature stability of the
resistor should be 100 ppm/°C (or better). The set-point range is from 0.6 V to 5.5 V. For information on output
V
O
Adjust 5
voltage adjustment see the related application section.
The V
O
Adjust pin must never be connected directly to GND . The minimum resistance between V
O
Adjust
and GND is limited to 240 Ω.
The Inhibit pin is an open-collector/drain-negative logic input that is referenced to GND. Applying a low-level
ground signal to this input disables the module's output. When the Inhibit control is active, the input current
Inhibit 1
drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the module will produce an
output voltage whenever a valid input source is applied.
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