Datasheet

Typical Performance Characteristics (Continued)

Typical Applications

The LM330 is designed specifically to operate at lower input

to output voltages. The device is designed utilizing a power

lateral PNP transistor which reduces dropout voltage from

2.0V to 0.3V when compared to IC regulators using NPN

pass transistors. Since the LM330 can operate at a much

lower input voltage, the device power dissipation is reduced,

heat sinking can be simpler and device reliability improved

through lower chip operating temperature. Also, a cost sav-

ings can be utilized through use of lower power/voltage com-

ponents. In applications utilizing battery power, the LM330

allows the battery voltage to drop to within 0.3V of output

voltage prior to the voltage regulator dropping out of regula-

tion.

Output Impedance

DS009306-19

Overvoltage Supply Current

DS009306-20

Reverse Supply Current

DS009306-21

Output at Reverse Supply

DS009306-22

Output at Overvoltage

DS009306-23

Output Voltage (Normalized

to 5V at T

25˚C)

DS009306-24

DS009306-5

Required if regulator is located far from power supply filter.

C2 may be either an Aluminum or Tantalum type capacitor but must be

rated to operate at −40˚C to guarantee regulator stability to that

temperature extreme. 10 µF is the minimum value required for stability and

may be increased without bound. Locate as close as possible to the

regulation.

DS009306-6

Note: Compared to IC regulator with 2.0V dropout voltage and

Qmax

6.0 mA.