LTC7004

13

7004fa

For more information www.linear.com/LTC7004

TGUP

TGDN

TS

INP

7004 F07

LTC7004

M1A

M1B

LOAD

Reverse Input Protection

below the load voltage, two external N-channel MOSFETs

should be used and must be in a back-to-back arrange-

ment as shown in Figure  7. Dual N-channel packages

such as the following devices are good choices for space

saving designs:

• FDS3890, Fairchild/ON Semiconductor

• IRF7380PbF, Infineon/IR

• SQJB80EP, Vishay/Siliconix

PC Board Layout Considerations

1. Solder the exposed pad on the backside of the LTC7004

package directly to the ground plane of the board.

2. Limit the resistance of the TS trace, by making it short

and wide.

4. Always include an option in the PC board layout to place

aresistorinserieswiththegateofanyexternalMOSFET.

High frequency oscillations are design dependent, and

having the option to add a series dampening resistor

can save a design iteration of the PC board.

APPLICATIONS INFORMATION