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Pin Descriptions

Vin:

The positive input voltage power node to the mod-

ule, which is referenced to common GND.

Vout:

The regulated positive power output with respect

to the GND node.

GND:

This is the common ground connection for the

Vin and Vout power connections. It is also the 0 VDC

reference for the control inputs.

Vo Adjust:

A 1 % 0.1 W resistor must be directly connected

between this pin and GND to set the output voltage to

a value higher than 0.8 V. The temperature stability of the

resistor should be 100 ppm/°C (or better). The set point

range for the output voltage is from 0.8 V to 3.6 V. The

resistor value required for a given output voltage may be

calculated from the following formula. If this is pin is

left open circuit, the output voltage will default to its

lowest value. For further information on output voltage

adjustment consult the related application note.

= 10 k

Ω ·

0.8 V

– 2.49 k

Ω

The specification table gives the preferred resistor values

for a number of standard output voltages.

Inhibit:

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 and turns off the output voltage. When the Inhibit

control is active, the input current drawn by the regula-

tor is significantly reduced. If the Inhibit pin is left

open-circuit, the module will produce an output when-

ever a valid input source is applied.

Track:

This is an analog control input that enables the

output voltage to follow an external voltage. This pin

becomes active typically 20 ms after the input voltage

has been applied, and allows direct control of the output

voltage from 0 V up to the nominal set-point voltage.

Within this range the output will follow the voltage at

the Track pin on a volt-for-volt basis. When the control

voltage is raised above this range, the module regulates

at its set-point voltage. The feature allows the output

voltage to rise simultaneously with other modules pow-

ered from the same input bus. If unused, the input should

feature, the output of the module cannot follow its own input

voltage during power up. For more information, consult the

related application note.

Ordering Information

Code

Description

AH

Horiz. T/H

(EUU)

AS

(EUV)

Code

Voltage

W

0.8 V – 3.6 V (Adjust)

Notes:

(1) Add “T” to end of part number for tape and reel on SMD packages only.

(2) Reference the applicable package reference drawing for the dimensions and PC board layout

(3) “Standard” option specifies 63/37, Sn/Pb pin solder material.

6-A, 5-V Input Non-Isolated

Wide-Output Adjust Power Module

PTH05050W —5-V Input

SLTS213C – MAY 2003 – REVISED MAY 2004