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ELECTRICALCHARACTERISTICS
TPS75003
SBVS052A–OCTOBER2004–REVISEDDECEMBER2004
V
EN1
=V
IN1
,v
EN2
=V
IN2
,v
EN3
=V
IN3
,v
IN1
=V
IN2
=V
IN3
=3.0v,v
OUT1
=V
OUT2
=V
OUT3
=2.5v,c
OUT1
=C
OUT2
=47µf,
C
OUT3
=2.2µf,t
一个
=-40
°
Cto+85
°
c,unlessotherwisenoted.typicalvaluesareatt
一个
=25
°
c.
PARAMETERCONDITIONSMINTYPMAXUNIT
SupplyandLogic
inputvoltagerange(in1,in2,
V
INX
2.26.5v
in3)
(1)
quiescentcurrent,i
Q
=I
DGND
+
I
Q
I
OUT1
=I
OUT2
=0ma,i
OUT3
=1mA100150µA
I
AGND
I
SHDN
ShutdownSupplyCurrentV
EN1
=V
EN2
=V
EN3
=0v0.33.0µa
enablehigh,使能
V
IHX
1.3v
INX
V
(en1,en2,en3)
enablelow,关闭
V
ILX
00.3v
(en1,en2,en3)
I
ENX
enablepincurrent(en1,en2,en3)0.010.5µa
BuckControllers1and2
V
out1,2
AdjustableOutputVoltageRange
(2)
V
FBX
V
INX
V
V
fb1,2
feedbackvoltage(fb1,fb2)1.2v
FeedbackVoltageAccuracy
(1)
2.8v
≤
V
in1,2
≤
6.5v-4+4%
(fb1,fb2)
I
fb1,2
currentintofb1,fb2pins0.010.5µa
ReferenceVoltageforCurrent
V
is1,2
90105120mV
Sense
I
is1,2
currentintois1,is2pins0.010.5µa
measuredwiththecircuitinfig-
∆
V
OUT%
/
∆
V
在
LineRegulation
(1)
ure1,0.6%/v
V
输出
+0.5v
≤
V
在
≤
6.5v
measuredwiththecircuitinfig-
∆
V
OUT%
/
∆
I
输出
loadregulationure1,0.6%/一个
1mA
≤
I
输出
≤
2A
measuredwiththecircuitinfig-
n
1,2
效率
(3)
94%
ure1,i
输出
=1A
measuredwiththecircuitinfig-
ure1,
t
str1,2
StartupTime
(3)
5ms
R
L
=6
Ω
,c
输出
=100µf,c
SS
=
2.2nf
V
in1,2
>2.5v4
gatedriverp-channelmosfet
R
ds,on1,2
Ω
在-阻抗
V
in1,2
=2.2v6
V
in1,2
>2.5v4
gatedrivern-channelmosfet
R
ds,on1,2
Ω
在-阻抗
V
in1,2
=2.2v6
I
sw1,2
MinimumGateDriveCurrent
TBD
毫安
t
在
minimumontime1.361.61.84µs
t
止
minimumofftime0.440.550.86µs
LDO
V
OUT3
outputvoltagerange1.06.5-v
做
V
V
FB3
feedbackpinvoltage0.507v
2.85v
≤
V
IN3
≤
6.5v
FeedbackPinVoltageAccuracy
(1)
-4.0+4.0%
1mA
≤
I
OUT3
≤
300mA
∆
V
OUT%
/
∆
V
在
LineRegulation
(1)
V
OUT3
+0.5v
≤
V
IN3
≤
6.5v0.75%/v
∆
V
OUT%
/
∆
I
输出
LoadRegulation10mA
≤
I
OUT3
≤
300ma0.01%/毫安
(1)tobeinregulation,minimumv
IN1
(orv
IN2
)mustbegreaterthanv
out1,nom
(orv
out2,nom
)byanamountdeterminedbyexternal
组件.minimumv
IN3
=V
OUT3
+V
做
or2.2v,whicheverisgreater.
(2)maximumv
输出
isdependentonexternalcomponentsandwillbelessthanV
在
.
(3)dependsonexternalcomponents.
3
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