L7987L datasheet(31/41 Pages) STMICROELECTRONICS

Il numero della parte	L7987L

Spiegazioni elettronici	Adjustable current limitation

PDF	41 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

Logo

31 / 41 page

DocID026362 Rev 3

31/41

L7987L

Demonstration board

In this section the L7987L demonstration board is described. The default settings are:



Programmed VOUT = 5 V



Max. IOUT = 2 A



FSW = 500 kHz



VBIAS = VOUT



Soft-start 5.3 ms

Figure 15. L7987L demonstration board schematic

Table 7. L7987L demonstration board component list

Reference

Part

Package

Note

Manufacturer P/N

C1, C2

4.7

F

1210

X7S/100 V/10%

TDK C3225X7S2A475K

C3, C4

F

0805

X7S/100 V/10%

TDK C2012X7S2A105K

F

1210

X5R/16 V/20%

TDK C3225X7S0J476M

C6, C12

N. M.

100 nF

0603

X7R/16 V

680 pF

0603

C0G/50 V

6.8 nF

0603

X7R/50 V

C10

33 nF

0603

X7R/16 V

C11

68 pF

0603

C0G/50 V

R1, R10

N. M.

100 k



0603



0603

910



0603

1% tolerance

10 k



0603

1% tolerance

68 k



0603

1% tolerance

L7987L Scheda tecnica(PDF) 31 Page - STMicroelectronics

L7987L Scheda tecnica(HTML) 31 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Scheda tecnica Scarica

Link URL