LTC4357

9

4357fb

Layout Considerations

Connect the IN and OUT pins as close as possible to the

MOSFET’s source and drain pins. Keep the traces to the

MOSFET wide and short to minimize resistive losses. See

Figure 4.

APPLICATIONS INFORMATION

Figure 4. Layout Considerations

For the DFN package, pin spacing may be a concern at

voltages greater than 30V. Check creepage and clearance

guidelines to determine if this is an issue. To increase the

pin spacing between high voltage and ground pins, leave

the exposed pad connection open. Use no-clean solder

to minimize PCB contamination.

Solar Panel Charging a Battery

LTC4357

S

S

S

G

1

2

3

4

8

7

6

5

D

D

D

D

MOSFET

IN

GATE

OUT

4357 F04

S

S

S

G

1

2

3

4

8

7

6

5

D

D

D

D

OUT

GATE

IN

TYPICAL APPLICATIONS

4357 TA02

LTC4357

GND

IN

OUT

12V

BATTERY

GATE

FDB3632

0.1μF

100Ω

14V

SHUNT

REGULATOR

+

LOAD

100W

SOLAR

PANEL