LTC4358

1

4358fa

FEATURES

APPLICATIONS

DESCRIPTION

5A Ideal Diode

20mΩ N-channel MOSFET to replace a Schottky diode

when used in diode-OR and high current diode applica-

tions. The LTC4358 reduces power consumption, heat

dissipation, and PC board area.

The LTC4358 easily ORs power supplies together to in-

crease total system reliability. In diode-OR applications,

the LTC4358 regulates the forward voltage drop across

the internal MOSFET to ensure smooth current transfer

from one path to the other without oscillation. If the power

source fails or is shorted, a fast turnoff minimizes reverse

current transients.

12V, 5A Diode-OR

16-Lead TSSOP Packages

Power Dissipation vs Load Current

4358 TA01

LTC4358

GND

IN

DRAIN

OUT

5A LOAD

LTC4358

GND

IN

DRAIN

OUT

CURRENT (A)

0

0

0.5

1.0

1.5

2.0

2.5

3.0

24

6

8

4358 TA01b

DIODE (B530C)

POWER SAVED

FET (LTC4358)

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

TYPICAL APPLICATION