A6986F データシートの表示（PDF） - STMicroelectronics

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A6986F

38 V 1.5 A synchronous step-down switching regulator with 30 µA quiescent current

STMicroelectronics 

A6986F

Electrical characteristics

Symbol

Table 5. Electrical characteristics (continued)

Parameter

Test condition

Note Min. Typ. Max. Unit

LCM - SWO

VREF < VFB < VOVP (SLEEP)

VBIAS = 3.3 V

LCM - NO SWO

IQ OPVIN Quiescent current from VIN

VREF < VFB < VOVP (SLEEP)

VBIAS = GND

LNM - SWO

VFB = GND (NO SLEEP)

VBIAS = 3.3 V

LNM - NO SWO

VFB = GND (NO SLEEP)

VBIAS = GND

LCM - SWO

IQ

OPVBIAS

Quiescent current from VBIAS

VREF < VFB < VOVP (SLEEP)

VBIAS = 3.3 V

LNM - SWO

VFB = GND (NO SLEEP)

VBIAS = 3.3 V

Soft-start

VINH VSS threshold

SS rising

VINH HYST VSS hysteresis

ISS CH CSS charging current

VSS < VINH OR

t < TSS SETUP OR

VEA+ > VFB

t > TSS SETUP AND

VEA+ < VFB

VSS START

Start of internal error amplifier

ramp

SSGAIN

SS/INH to internal error

amplifier gain

(3)

4

10 15

A

(3) 35 70 120

0.5 1.5 5

mA

2 2.8 6

(3) 25 50 115 A

0.5 1.2 5 mA

200 460 700

mV

100 140

(2)

1

A

(2)

4

0.995 1.1 1.150 V

3

Error amplifier

VOUT Voltage feedback

IVOUT VOUT biasing current

AV

Error amplifier gain

3.3 V (A69863V3)

5 V (A69865V)

3.3 V (A69863V3)

5 V (A69865V)

ICOMP EA output current capability

3.25 3.3 3.35

V

4.925 5.0. 5.075

4 6 8.5

A

7.5 10 13.5

(2)

100

dB

±6 ±12 ±25

A

(4)

±4

DocID027739 Rev 1

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