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PIN ASSIGNMENT

PIN

1

2

3

5

4

PTH08080W

SLTS235A – FEBRUARY 2005 – REVISED MARCH 2005

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

1

I

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

GND

2

3

O

The regulated positive power output with respect to the GND node.

A 1% resistor must be connected between this pin and GND (pin 1) to set the output voltage of the module

higher than 0.9 V. If left open-circuit, the output voltage defaults to this value. The temperature stability of the

4

I

resistor should be 100 ppm/

°C (or better). The set-point range is from 0.9 V to 5.5 V. The electrical

specification table gives the standard resistor value for a number of common output voltages. See the

application information for further guidance.

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

5

I

drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the module produces an

output voltage whenever a valid input source is applied.

Figure 1. Terminal Location

4