L6986H datasheet(52/68 Pages) STMICROELECTRONICS

Part #	L6986H

Description	38 V, 2 A synchronous step-down switching regulator with 30 μA quiescent current

PDF	68 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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52 / 68 page

Table 19. L6986H 3V3 demonstration board BOM

Reference

Part number

Description

Manufacturer

0 R - 0603

R9, C7

Not mounted

75 kΩ - 1% - 0603

330 pF - 10 V - 0603

2.2 pF - 10 V - 0603

Open

L6986H 3V3

3.3 V internal divider

STM

Table 20. L6986H 5V demonstration board BOM

Reference

Part number

Description

Manufacturer

0 R - 0603

R9, C7

Not mounted

0 Ω -0603

100 kΩ - 1% - 0603

330 pF - 10 V - 0603

2.2 pF - 10 V - 0603

Open

L6986H 5V

5 V internal divider

STM

Table 21. L6986H adj. demonstration board BOM

Reference

Part number

Description

Manufacturer

240 kΩ - 1% - 0603

Not mounted

82 kΩ - 1% - 0603

75 kΩ - 1% - 0603

330 pF - 10 V - 0603

2.2 pF - 10 V - 0603

Open

L6986H

External divider (VOUT=3.3 V)

STM

Figure 53. Magnitude bode plot and Figure 54. Phase margin bode plot show the magnitude and phase margin

Bode plots related to the BOM of Table 21. L6986H adj. demonstration board BOM.

The small signal dynamic performance in this configuration is:

BW=55kHz

pℎase margin=60∘

(54)

L6986H

Application board

DS12905 - Rev 2

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