L7985 datasheet(41/42 Pages) STMICROELECTRONICS

41 / 42 page

DocID022446 Rev 7

41/42

L7985

Revision history

Table 13. Document revision history

Date

Revision

Changes

07-Nov-2011

Initial release.

01-Mar-2012

Section 8: Package information has been updated.

16-Oct-2012

In Section 5.6 changed temperature value from 130 to 120

°C.

18-Mar-2014

Updated text below Equation 4 on page 13 (replaced “DRC” by

“DCR”).

Numbered on page 22, Equation 28 on page 23, and Equation 32 on

page 25.

Updated Section 6.4.2: Type II compensation network on page 23

(added “

” to “1 kand 5 k“in 1. on page 24).

Updated Figure 34: Positive buck-boost regulator on page 33

(replaced by a new figure).

Updated Section 8: Package information on page 37 (reversed order

of Figure 38 and Table 10, and Figure 39 and Table 11, minor

modifications).

Updated cross-references throughout document.

Minor modifications throughout document.

02-May-2014

Updated Table 12: Order code on page 40 (removed the L7985 order

code related to the VFQFPN10 in tube).

24-Jun-2014

Updated Figure 1: Application circuit on page 1 (replaced by new

figure).

Minor modifications throughout document.

05-Sep-2014

Updated Figure 1: Application circuit on page 1 (replaced by new

figure).

Updated Section 5.1: Oscillator and synchronization on page 9

(added “typically” between “frequency” and “works”, and “The

SYNCH circuitry is also able to synchronize with a slightly lower

external frequency, so the frequency pre-adjustment with the same

resistor on the FSW pin, as described below, is suggested for

a proper operation.”).

Minor modifications throughout document.

L7985 数据表(PDF) 41 Page - STMicroelectronics

L7985 数据表(HTML) 41 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 42

数据表下载

链接网址

L7985 数据表(PDF) 41 Page - STMicroelectronics

L7985 数据表(HTML) 41 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 42

数据表 下载

链接网址

数据表下载