Datasheet > L6986H3V3

L6986H3V3

更新时间： 2022-05-14 22:21:08

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
68页	18008K
描述
38 V, 2 A synchronous step-down switching regulator with 30 Î¼A quiescent current

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L6986H3V3 数据手册

L6986H

Electrical characteristics

T_J=25 °C, V_IN= 12 V unless otherwise specified.

Table 5. Electrical characteristics

Symbol

Parameter

Test conditions

Note

Min.

Typ.

Max.

Unit

Operating input voltage

range

UVLO rising

threshold

2.7

3.5

IN_H

UVLO falling

threshold

2.4

2.55

2.1

3.5

IN_L

Duty cycle < 20%

Peak current limit

Valley current limit

Duty cycle = 100% closed

loop operation

2.7

0.8

(1)

LCM, V

= GND

= VCC

0.6

0.2

SKIPH

SYNCH

Programmable skip

current limit

(2)

0.8

SKIPL

SYNCH

LNM or V

overvoltage

OUT

Reverse current limit

High-side RDSON

Low-side RDSON

VY_SNK

=1 A

0.18

0.15

0.36

0.30

DS(on) HS

=1 A

DS(on) LS

Selected switching

frequency

FSW pinstrapping before

See Table 6. f

selection

500

FSW biasing current

SS ended

FSW

See Table 7. LNM/ LCM selection

(L6986H3V3), Table 8. LNM/ LCM selection

(L6986H5V) and Table 9. LNM/ LCM selection

(L6986H)

Low noise mode /low

consumption mode

selection

LCM/LNM

MLF pinstrapping before SS

MLF biasing current

Duty cycle

SS ended

500

100

MLF

(2)

Minimum on-time

ON MIN

VCC regulator

= GND (no

switchover)

BIAS

2.9

3.3

3.6

VCC

LDO output voltage

= 5 V (switchover)

BIAS

Switch internal supply from

2.85

2.78

3.2

threshold

BIAS

to V

BIAS

SWO

(3 V< V

<5.5 V)

BIAS

Switch internal supply from

to V

3.15

BIAS

Power consumption

VSS/INH =GND

Shutdown current from

µA

SHTDWN

DS12905 - Rev 2

page 6/68

1...3 4 567 8 9...68

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