TA78033, 04, 05, 07, 08, 09AF

2006-11-06

2

Block Diagram

Characteristic

Symbol

Rating

Unit

Input voltage

20

V

Output current

1

A

Operating Junction temperature

−40~135

°C

Junction temperature

150

°C

Storage temperature

−55~150

°C

Ta = 25°C

1

Power dissipation

Tc = 25°C

10

W

Note 2: Do not apply current and voltage (including reverse polarity) to any pin that is not specified.

Note 3: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the

significant change in temperature, etc.) may cause this product to decrease in the reliability significantly

even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute

maximum ratings and the operating ranges.

Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook

(“Handling Precautions”/Derating Concept and Methods) and individual reliability data (i.e. reliability test

report and estimated failure rate, etc).

Thermal characteristics

Characteristic

Symbol

Max

Unit

Thermal resistance, junction to ambient

125

°C / W

Thermal resistance, junction to case

12.5

°C / W

Protection Function (reference) (Note3)

Characteristics

Symbol

Test Condition

Min

Typ.

Max

Unit

Thermal shutdown

―

175

―

°C

Peak circuit current

―

1.7

―

A

Short circuit current

―

1.5

―

A

Note 3: Ensure that the devices operate within the limits of the maximum rating when in actual use.

Safe operating

Area circuit

＋

－

INPUT

OUTPUT

GND

Reference

voltage circuit

Thermal shutdown

circuit

Over current

protection circuit

Startup

circuit