TS39300

1-6

2005/12 rev. A

TS39300

3A Ultra Low Dropout Positive Voltage Regulator

Low Dropout Voltage 0.4V (typ.)

Output Current 3A

Low Ground Current

General Description

The TS39300 series are 3A ultra low dropout linear voltage regulators that provide low voltage, high current output

with a minimum of external components. The TS39300 offers extremely low dropout (typically 400mV at 3A) and low

ground current (typically 36mA at 3A).

The TS39300 is ideal for PC add-in cards that need to convert from standard 3.3V to 2.5V or 2.5V to 1.8V. A

guaranteed maximum dropout voltage of 500mV over all operating conditions allows the TS39300 to provide 2.5V

from a supply as low as 3V, and 1.8V from a supply as low as 2.5V. The TS39300 also has fast transient response for

heavy switching applications. The device requires only 47uF of output capacitor to maintain stability and achieve fast

transient response.

Features



Dropout voltage typically 0.4V @Io=3A



Output current up to 3A



Low ground current



Current limiting and Thermal shutdown



Extremely fast transient response



Reversed leakage protection



Reverse battery protection

Ordering Information

Note: Where xx denotes voltage option, available are

50 = 5.0V

33 = 3.3V

25 = 2.5V

18 = 1.8V

Part No.

Operating Temp.

Package

TS39300CZxx

TO-220

TS39300CMxx

-40 ~ +125

TO-263

Applications



Battery power equipment



LDO linear regulator for PC add-in cards



PowerPC



High efficiency linear power supplies



High efficiency post regulator for switching supply



Low-voltage microcontrollers and digital logic

Supply Voltage

Vin

-20V ~ +20

V

Enable Voltage

Ven

+20

V

Storage Temperature Range

-65 ~ +150

Lead Soldering Temperature (260

5

S

ESD

(Note 3)

Pin Assignment:

1. Input

2. Ground

3. Output

TO-263