eorex

EP1117

Jul. 2006

www.eorex.com

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Pin Assignment

Ordering Information

Pin Description

Pin

Name

Function

1

FB/GND

A resistor divider from this pin to the Vout pin and ground sets the

output voltage. (Ground only for Fixed-Mode)

2

The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤

ESR ≤ 20Ω) must be connected from this pin to ground to insure

stability.

3

The input pin of regulator. Typically a large storage capacitor (0.15Ω

≤ ESR ≤ 20Ω) is connected from this pin to ground to insure that the

input voltage does not sag below the minimum dropout voltage

during the load transient response. This pin must always be 1.3V

higher than Vout in order for the device to regulate properly.