ILE4266-2

January, 2011, Rev. 01

Pin Definitions and Functions

Pin

Symbol

Function

PIN CONFIGURATION

1

Input voltage; block to ground

directly at the IC with a ceramic

capacitor.

2

Inh

Inhibit; low-active input.

3

Output voltage; block to ground

with a capacitor. C

≥10 uF.

4

GND

Ground

Circuit Description

The device produces a precise reference voltage, that is very accurate due to resistor

adjustment. A control amplifier compares the divided output voltage to this reference

voltage and drives the base of the PNP series transistor through a buffer.

Saturation control as a function of the load current prevents any oversaturation of the

power element. The IC also incorporates a number of protection circuitry for:

•

Overload

•

Overtemperature

•

Reverse polarity