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L6986 数据表(PDF) 9 Page - STMicroelectronics

部件名 L6986
功能描述  38 V, 2 A synchronous step-down switching regulator with 30 A quiescent current
PDF  68 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6986 数据表(HTML) 9 Page - STMicroelectronics

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DocID025376 Rev 7
9/68
L6986
Electrical characteristics
68
Power consumption
ISHTDWN
Shutdown current from VIN
VSS/INH = GND
4
8
15
A
IQ OPVIN
Quiescent current from VIN
LCM - SWO
VREF < VFB < VOVP (SLEEP)
VBIAS = 3.3 V
(3)
410
15
A
LCM - NO SWO
VREF < VFB < VOVP (SLEEP)
VBIAS = GND
(3)
45
70
100
LNM - SWO
VFB = GND (NO SLEEP)
VBIAS = 3.3 V
0.5
1.5
5
mA
LNM - NO SWO
VFB = GND (NO SLEEP)
VBIAS = GND
22.8
6
IQ OPVBIAS Quiescent current from VBIAS
LCM - SWO
VREF < VFB < VOVP (SLEEP)
VBIAS = 3.3 V
(3)
30
50
90
A
LNM - SWO
VFB = GND (NO SLEEP)
VBIAS = 3.3 V
0.5
1.2
5
mA
Soft-start
VINH
VSS threshold
SS rising
200
460
700
mV
VINH HYST VSS hysteresis
60
ISS CH
CSS charging current
VSS < VINH OR
t < TSS SETUP OR
VEA+ > VFB
(2)
1
A
t > TSS SETUP AND
VEA+ < VFB
(2)
4
VSS_L_CLMP SS discharge voltage
VCC < VCCH OR
t < TSS SETUPOR
thermal fail
855
900
945
mV
VSS START
Start of internal error amplifier
ramp
0.995
1.1
1.150
V
SSGAIN
SS/INH to internal error amplifier
gain
3
VSS_H_CLMP
SS/INH voltage at the end of SS
phase
2.5
3.6
V
Error amplifier
VFB
Voltage feedback
0.841
0.85 0.859
V
IFB
FB biasing current
50
500
nA
Gm
Transconductance
85
155
210
S
Table 5. Electrical characteristics (continued)
Symbol
Parameter
Test condition
Note Min.
Typ.
Max. Unit



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