L7987L datasheet(40/41 Pages) STMICROELECTRONICS

40 / 41 page

Ordering information

L7987L

40/41

DocID026362 Rev 3

Ordering information

Revision history

Table 9. Order codes

Order code

Package

Packaging

L7987L

HTSSOP16

Tube

L7987LTR

HTSSOP16

Tape and reel

Table 10. Document revision history

Date

Revision

Changes

15-May-2014

Initial release.

03-Jun-2014

Updated main title: 61 V, 2 A asynchronous step-down

switching regulator with adjustable current limitation on

page 1 (replaced “3 A” by “2 A”).

12-Jan-2016

Updated Section : Features on page 1 (replaced “Low

dropout operation...” by “Advanced bootstrap capacitor

management for LDO operation”) and Section :

Description on page 1 (added “almost”, removed “The

wide input voltage ... systems”).

Updated Section 3: Electrical characteristics on page 8

(replaced by new section).

Updated Section 4.2: Soft-start on page 15 (replaced

“0.32 V” by “device OFF level” and “1.16 V” by “device

ON level”).

Updated Section 4.4: Low VIN operation on page 17

(updated text, removed “and the effective maximum duty

cycle ... 92

%”).

Updated Section 4.5: Overcurrent protection on page 17

(replaced “3.6 A“ by “3.0 A“, removed “IPK = 3.6 A ... not

mounted” sentence).

Updated Figure 12 on page 26 (replaced by new figure).

Updated Table 7 on page 31 (updated L1 component).

Added Figure 17 to Figure 22 to Section 6:

Demonstration board on page 31.

Added Section 7: Application ideas on page 34.

Minor modifications throughout document.

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