ADP2387

Data Sheet

Rev. C | Page 18 of 25

R

+

–

g

m

–

+

Figure 33. Simplified, Peak Current Mode Control, Small Signal Circuit

The closed-loop transfer equation is as follows:

×

+

−

×

+

CP

C

m

TOP

BOT

BOT

C

C

g

R

R

R

)

(

1

1

s

G

s

C

C

C

C

R

s

s

C

R

VD

CP

C

CP

C

C

C

C

×













×

×

×

×

+

×

×

×

+

applications.

VI

m

C

OUT

OUT

A

g

f

C

V

×

×

×

×

×

π

×

V

6

.

0

2

C

OUT

ESR

R

C

R

R

×

+

)

(

ESR of the output capacitor.

C

OUT

ESR

R

C

R

×

ADIsimPower DESIGN TOOL

The ADP2387 is supported by the ADIsimPower™ design tool

set. ADIsimPower is a collection of tools that produce complete

power designs optimized for a specific design goal. The tools

enable the user to generate a full schematic and bill of materials

and to calculate performance in minutes. ADIsimPower can

optimize designs for cost, area, efficiency, and parts count,

while taking into consideration the operating conditions and

limitations of the IC and all real external components. For

more information about the ADIsimPower design tools, go to

www.analog.com/ADIsimPower. The tool set is available from

the Analog Devices, Inc., website, and users can request an

unpopulated board.