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L78L09

Three-Terminal Positive-Voltage Regulator

Niko Semiconductor 

NIKO-SEM

Three-Terminal

Positive-Voltage Regulator

L78L09

ABSOLUTE MAXIMUM RATINGS

PARAMETER

VALUE

Input Voltage - V I

Continuous total power dissipation

30V

(See Note 1)

Storage Temperature Range - TSTG

-55 to +150 °C

Junction Temperature - TJ

125 °C

Lead Temperature (Soldering, 10 Seconds) - TL

260 °C

Note1: To avoid exceeding the design maximum virtual junction temperature, three ratings should not be exceeded. Due to variations in

individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power

levels slightly above or below the rated dissipation.

DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING

FACTOR

DERATING

ABOVE TA

TA = 70°C

POWER RATING

TO-92

650 mW

6.2 mW/°C

25 °C

350 mW

† The TO-92 package dissipation rating is based on thermal resistance θJA measured in still air with the device mounted in an Augat socket.

The bottom of the package is 10mm (0.375 in) above the stock.

DISSIPATION RATING TABLE 2 – CASE TEMPERATURE

PACKAGE

TO-92

TA ≤ 25°C

POWER RATING

1600 mW

DERATING

FACTOR

28.6 mW/°C

DERATING

ABOVE TC

94 °C

TC = 125°C

POWER RATING

713 mW

RECOMMENDED OPERATING CONDITIONS

PARAMETER

Input Voltage - V I

L78L09

Output Current - IOUT

Operating Virtual Junction Temperature - TJ

VALUE

12V to 30V

100 mA (Max)

0 to 125 °C

2

MAR-14-2002

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