A6985F3V3 datasheet(11/77 Pages) STMICROELECTRONICS

Part #	A6985F3V3

Description	38 V 500 mA synchronous step-down switching regulator

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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11 / 77 page

DocID027738 Rev 2

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A6985F

Electrical characteristics

77

TJ = -40 to 135 °C, VIN = 12 V unless otherwise specified.

Table 6. fSW selection

TJ = -40 to 135 °C, VIN = 12 V unless otherwise specified.

Table 7. LNM / LCM selection (A6985F3V3)

Symbol RVCC (E24 series) RGND (E24 series) Tj fSW min. fSW typ. fSW max.

Unit

fSW

0



NC

225

250

275

kHz

1.8 k



NC

(1)

1. Not tested in production.

285

3.3 k



NC

330

5.6 k



NC

380

10 k



NC

435

NC

0



450

500

550

18 k



NC

(1)

575

33 k



NC

660

56 k



NC

755

NC

1.8 k



870

NC

3.3 k



900

1000

1100

NC

5.6 k



(1)

1150

NC

10 k



1310

NC

18 k



1500

NC

33 k



1575

1750

1925

NC

56 k



1800

2000

2200

Symbol

RVCC

(E24 1%)

RGND

(E24 1%)

Operating

mode

VRST/VOUT

(tgt. value)

VRST

min.

VRST

typ.

VRST

max.

Unit

VRST

0



NC

LCM

93%

3.008

3.069

3.130

V

8.2 k



NC

80%

2.587

2.640

2.693

18 k



NC

87%

2.814

2.871

2.928

39 k



NC

96%

3.105

3.168

3.231

NC

0



LNM

93%

3.008

3.069

3.130

NC

8.2 k



80%

2.587

2.640

2.693

NC

18 k



87%

2.814

2.871

2.928

NC

39 k



96%

3.105

3.168

3.231

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A6985F3V3 Datasheet(PDF) 11 Page - STMicroelectronics

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