Pin Functions

V

can source up to 20 mA. It is stable with output capacitor

ranges from 0 to 100 µF.

V

tor is recommended if the output loading changes or input is

noisy.

Ground (Pin 2):Negative Supply or Ground Connection.

NC (Pins 1, 3):No Connection (internally terminated). These

pins must be left unconnected.

Application Information

Output Capacitor

The LM4130 is designed to operate with or without an output

capacitor and is stable with capacitive loads of up to 100µF.

Connecting a capacitor between the output and ground will

significantly improve the load transient response when

switching from a light load to a heavy load. However, the out-

put capacitor should not be made arbitrarily large because it

will effect the turn-on time as well as line and load transients.

Input Capacitor

A small 0.1µF capacitor on the input significantly improves

stability under a wide range of load conditions. With an input

bypass capacitor, the LM4130 will drive any combination of

resistance and capacitance up to V

spectively.

Noise on the power-supply input can effect the output noise,

but it can be reduced by using an optional bypass capacitor

between the input pin and the ground.

Printed Circuit Board Layout Consideration

References in SOT packages are generally less prone to as-

sembly stress than devices in Small Outline (SOIC) pack-

age.

To minimize the mechanical stress due to PC board mount-

ing that can cause the output voltage to shift from its initial

value, mount the reference on a low flex area of the PC

board, such as near the edge or a corner.

Typical Application Circuits

Precision High Current Low Droput Regulator

DS101046-4

Voltage Reference with Complimentary Output

DS101046-6

Precision High Current Low Droput Regulator

DS101046-7

Precision Voltage Reference

with Force and Sense Output

DS101046-9

Programmable Current Source

DS101046-10

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