2024年5月8日发(作者：联想拯救者y7000p配置参数详细)
元器件交易网
HT77XX
PFMStep-upDC/DCConverter
TechnicalDocument
·
ToolsInformation
·
FAQs
·
ApplicationNote
Features
·
Lowstart-upvoltage:0.6V(Typ.)
·
Highefficiency:85%(Typ.)
·
Highoutputvoltageaccuracy:±2.5%
·
Outputvoltage:2.7V,3.0V,3.3V,3.7V,5.0V
·
UltralowsupplycurrentI
DD2
:4mA(Typ.)
·
Lowrippleandlownoise
·
Lowshutdowncurrent:0.5mA(Typ.)
·
TO-92,SOT-89andSOT-25package
Applications
·
Palmtops/PDAs
·
Portablecommunicators/Smartphones
·
Cameras/Camcorders
·
Battery-poweredequipment
GeneralDescription
TheHT77XXseriesisasetofPFMstep-upDC/DCcon-
iesfea-
turesextremelylowstart-upvoltageandhighoutput
quireonlythreeexternalcom-
ponentstoprovideafixedoutputvoltageof2.7V,3.0V,
3.3V,chnologyensuresultralow
supplycurrentandmakesthemidealforbat-
tery-operatedapplicationspoweredfromoneormore
cells.
TheHT77XXconsistsofanoscillator,aPFMcontrolcir-
cuit,adrivertransistor,areferencevoltageunit,anda
ploypulsefrequency
modulation(PFM)forminimumsupplycurrentandrip-
evicesareavailable
inspacesavingTO-92,SOT-89andSOT-25packages.
ForSOT-25package,italsobuild-inachipenablefunc-
tiontoreducepowerconsumptionduringshutdown
mode.
SelectionTable
PartNo.
HT7727
HT7730
HT7733
HT7737
HT7750
Note:
²XX²standsforoutputvoltages.
Onlyleadfreedevicesareavailable.²#²TO-92package,therewillbea
²#²markattheendofthedatecode.
OutputVoltage
2.7V
3.0V
3.3V
3.7V
5.0V
TO-92
SOT-89
SOT-25
HT77XX(forTO-92)
HT77XX#(forSOT-89)
77XX#(forSOT-25)
PackageMarking
Rev1.101March7,2006
元器件交易网
HT77XX
BlockDiagram
PinAssignment
PinDescription
PinNo.
TO-92
¾
2
¾
1
3
SOT-25
1
2
3
4
5
SOT-89
¾
2
¾
1
3
PinName
CE
VOUT
NC
GND
LX
Chipenablepin,highactive
DC/DCconverteroutputmonitoringpin
Noconnection
Groundpin
Switchingpin
Description
AbsoluteMaximumRatings
.V
SS
-0.3VtoV
SS
+7V
PowerConsumption(*1)..................................500mW
PowerConsumption(*2)..................................250mW
Note:esexceedingtherangespecifiedunder²AbsoluteMaximumRatings²may
onaloperationofthisdeviceatotherconditionsbeyondthose
listedinthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffectdevicereliabil-
ity.
*1:appliedtoSOT-89andTO-92
*2:appliedtoSOT-25
-50°Cto125°C
0°Cto70°C
Rev1.102March7,2006
元器件交易网
HT77XX
ElectricalCharacteristics
HT7727,+2.7VOutputType
Symbol
V
OUT
V
IN
V
START
V
HOLD
I
IN
I
DD1
I
DD2
I
SHDN
I
LEAK
f
OSC
h
D
OSC
Parameter
OutputVoltage
InputVoltage
Start-upVoltage
MinimumHold-onVoltage
NoloadInputCurrent
SupplyCurrent1
SupplyCurrent2
ShutdownCurrent
LXLeakageCurrent
MaximumOscillatorFrequency
Efficiency
OscillatorDutyCycle
V
IN
=V
OUT
´0.6;I
OUT
=10mA;Ta=25°C(Unlessotherwisespecified)
TestConditions
¾
¾
V
IN
:0®2V;I
OUT
=1mA
V
IN
:2®0V;I
OUT
=1mA
Measuredatnoload
V
IN
=V
OUT
´0.95
MeasuredatVOUTpin
V
IN
=V
OUT
+0.5V
MeasuredatVOUTpin
V
CE
=V
IL
,V
IN
=V
OUT
´0.95
V
IN
=6V
V
IN
=V
OUT
´0.95
MeasuredatLXpin
¾
V
IN
=V
OUT
´0.95
MeasuredatLXpin
Min.
2.633
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
65
Typ.
2.7
¾
0.6
¾
10
40
4
0.5
¾
115
85
75
Max.
2.767
6
0.7
0.7
¾
¾
7
¾
0.9
¾
¾
85
Unit
V
V
V
V
mA
mA
mA
mA
mA
kHz
%
%
HT7730,+3.0VOutputType
Symbol
V
OUT
V
IN
V
START
V
HOLD
I
IN
I
DD1
I
DD2
I
SHDN
I
LEAK
f
OSC
h
D
OSC
Parameter
OutputVoltage
InputVoltage
Start-upVoltage
-onVoltage
NoloadInputCurrent
SupplyCurrent1
SupplyCurrent2
ShutdownCurrent
LXLeakageCurrent
MaximumOscillatorFrequency
Efficiency
OscillatorDutyCycle
V
IN
=V
OUT
´0.6;I
OUT
=10mA;Ta=25°C(Unlessotherwisespecified)
TestConditions
¾
¾
V
IN
:0®2V;I
OUT
=1mA
V
IN
:2®0V;I
OUT
=1mA
Measuredatnoload
V
IN
=V
OUT
´0.95
MeasuredatVOUTpin
V
IN
=V
OUT
+0.5V
MeasuredatVOUTpin
V
CE
=V
IL
,V
IN
=V
OUT
´0.95
V
IN
=6V
V
IN
=V
OUT
´0.95
MeasuredatLXpin
¾
V
IN
=V
OUT
´0.95
MeasuredatLXpin
Min.
2.925
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
65
Typ.
3
¾
0.6
¾
10
48
4
0.5
¾
115
85
75
Max.
3.075
6
0.7
0.7
¾
¾
7
¾
0.9
¾
¾
85
Unit
V
V
V
V
mA
mA
mA
mA
mA
kHz
%
%
Rev1.103March7,2006
元器件交易网
HT77XX
HT7733,+3.3VOutputType
Symbol
V
OUT
V
IN
V
START
V
HOLD
I
IN
I
DD1
I
DD2
I
SHDN
I
LEAK
f
OSC
h
D
OSC
Parameter
OutputVoltage
InputVoltage
Start-upVoltage
-onVoltage
NoloadInputCurrent
SupplyCurrent1
SupplyCurrent2
ShutdownCurrent
LXLeakageCurrent
MaximumOscillatorFrequency
Efficiency
OscillatorDutyCycle
V
IN
=V
OUT
´0.6;I
OUT
=10mA;Ta=25°C(Unlessotherwisespecified)
TestConditions
¾
¾
V
IN
:0®2V;I
OUT
=1mA
V
IN
:2®0V;I
OUT
=1mA
Measuredatnoload
V
IN
=V
OUT
´0.95
MeasuredatVOUTpin
V
IN
=V
OUT
+0.5V
MeasuredatVOUTpin
V
CE
=V
IL
,V
IN
=V
OUT
´0.95
V
IN
=6V
V
IN
=V
OUT
´0.95
MeasuredatLXpin
¾
V
IN
=V
OUT
´0.95
MeasuredatLXpin
Min.
3.218
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
65
Typ.
3.3
¾
0.6
¾
10
60
4
0.5
¾
115
85
75
Max.
3.382
6
0.7
0.7
¾
¾
7
¾
0.9
¾
¾
85
Unit
V
V
V
V
mA
mA
mA
mA
mA
kHz
%
%
HT7737,+3.7VOutputType
Symbol
V
OUT
V
IN
V
START
V
HOLD
I
IN
I
DD1
I
DD2
I
SHDN
I
LEAK
f
OSC
h
D
OSC
Parameter
OutputVoltage
InputVoltage
Start-upVoltage
-onVoltage
NoloadInputCurrent
SupplyCurrent1
SupplyCurrent2
ShutdownCurrent
LXLeakageCurrent
MaximumOscillatorFrequency
Efficiency
OscillatorDutyCycle
V
IN
=V
OUT
´0.6;I
OUT
=10mA;Ta=25°C(Unlessotherwisespecified)
TestConditions
¾
¾
V
IN
:0®2V;I
OUT
=1mA
V
IN
:2®0V;I
OUT
=1mA
Measuredatnoload
V
IN
=V
OUT
´0.95
MeasuredatVOUTpin
V
IN
=V
OUT
+0.5V
MeasuredatVOUTpin
V
CE
=V
IL
,V
IN
=V
OUT
´0.95
V
IN
=6V
V
IN
=V
OUT
´0.95
MeasuredatLXpin
¾
V
IN
=V
OUT
´0.95
MeasuredatLXpin
Min.
3.608
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
65
Typ.
3.7
¾
0.6
¾
10
64
4
0.5
¾
115
85
75
Max.
3.793
6
0.7
0.7
¾
¾
7
¾
0.9
¾
¾
85
Unit
V
V
V
V
mA
mA
mA
mA
mA
kHz
%
%
Rev1.104March7,2006
元器件交易网
HT77XX
HT7750,+5.0VOutputType
Symbol
V
OUT
V
IN
V
START
V
HOLD
I
IN
I
DD1
I
DD2
I
SHDN
I
LEAK
f
OSC
h
D
OSC
Parameter
OutputVoltage
InputVoltage
Start-upVoltage
-onVoltage
CurrentConsumption
SupplyCurrent1
SupplyCurrent2
ShutdownCurrent
LXLeakageCurrent
MaximumOscillatorFrequency
Efficiency
OscillatorDutyCycle
V
IN
=V
OUT
´0.6;I
OUT
=10mA;Ta=25°C(Unlessotherwisespecified)
TestConditions
¾
¾
V
IN
:0®2V;I
OUT
=1mA
V
IN
:2®0V;I
OUT
=1mA
Measuredatnoload
V
IN
=V
OUT
´0.95
MeasuredatVOUTpin
V
IN
=V
OUT
+0.5V
MeasuredatVOUTpin
V
CE
=V
IL
,V
IN
=V
OUT
´0.95
V
IN
=6V
V
IN
=V
OUT
´0.95
MeasuredatLXpin
¾
V
IN
=V
OUT
´0.95
MeasuredatLXpin
Min.
4.875
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
65
Typ.
5
¾
0.7
¾
10
85
4
0.5
¾
115
85
75
Max.
5.125
6
0.8
0.7
¾
¾
7
¾
0.9
¾
¾
85
Unit
V
V
V
V
mA
mA
mA
mA
mA
kHz
%
%
TypicalPerformanceCharacteristics
L=220mH,C=47mF
Current
Rev1.105March7,2006
元器件交易网
HT77XX
L=220mH,C=47mF
Current
L=220mH,C=47mF
ature
Rev1.106March7,2006
元器件交易网
HT77XX
ApplicationCircuits
Note:FortheSOT-25package,whenCEispulledlow,theinternalblocksofthedevice,suchasthereferenceband
gap,gainblock,stconverter¢soutput,VOUT,
willbeatavalueoneSchottkydiodevoltagedropbelowtheinputvoltageandtheLXpinremainsinahighim-
putcapacitorandloadatVOUTdeterminetherateatwhichVOUTdecays.
Rev1.107March7,2006
元器件交易网
HT77XX
PackageInformation
3-pinTO-92OutlineDimensions
Symbol
A
B
C
D
E
F
G
H
I
a
Dimensionsinmil
Min.
170
170
500
11
90
45
45
130
8
4°
Nom.
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
Max.
200
200
¾
20
110
55
65
160
18
6°
Rev1.108March7,2006
元器件交易网
HT77XX
3-pinSOT-89OutlineDimensions
Symbol
A
B
C
D
E
F
G
H
I
J
Dimensionsinmil
Min.
173
64
90
35
155
14
17
¾
55
14
Nom.
¾
¾
¾
¾
¾
¾
¾
59
¾
¾
Max.
181
72
102
47
167
19
22
¾
63
17
Rev1.109March7,2006
元器件交易网
HT77XX
5-pinSOT-25OutlineDimensions
Symbol
A
A1
A2
b
C
D
E
e
H
L
q
Dimensionsinmm
Min.
1.00
¾
0.70
0.35
0.10
2.70
1.40
¾
2.60
0.37
1°
Nom.
¾
¾
¾
¾
¾
¾
¾
1.90
¾
¾
¾
Max.
1.30
0.10
0.90
0.50
0.25
3.10
1.80
¾
3
¾
9°
Rev1.1010March7,2006
元器件交易网
HT77XX
ProductTapeandReelSpecifications
TO-92ReelDimensions(Unit:mm)
Rev1.1011March7,2006
元器件交易网
HT77XX
SOT-89&SOT-25ReelDimensions
SOT-89
Symbol
A
B
C
D
T1
T2
SOT-25
Symbol
A
B
C
D
T1
T2
Description
ReelOuterDiameter
ReelInnerDiameter
SpindleHoleDiameter
KeySlitWidth
SpaceBetweenFlange
ReelThickness
Dimensionsinmm
178±1.0
62±1.0
13.0±0.2
2.5±0.25
8.4+1.5
-0.0
11.4+1.5
Description
ReelOuterDiameter
ReelInnerDiameter
SpindleHoleDiameter
KeySlitWidth
SpaceBetweenFlange
ReelThickness
Dimensionsinmm
180±1.0
62±1.5
12.75+0.15
1.9±0.15
12.4+0.2
17-0.4
Rev1.1012March7,2006
元器件交易网
HT77XX
TO-92CarrierTapeDimensions
TO-92
Symbol
I1
P
P
0
P
2
F
1
F
2
Dh
W
W
0
W
1
W
2
H
0
H
1
D
0
t
H
Note:
Description
TapedLeadLength
ComponentPitch
PerforationPitch
ComponenttoPerforation(LengthDirection)
LeadSpread
LeadSpread
ComponentAlignment
CarrierTapeWidth
Hold-downTapeWidth
PerforationPosition
Hold-downTapePosition
LeadClinchHeight
ComponentHeight
PerforationDiameter
TapedLeadThickness
ComponentBaseHeight
Dimensionsinmm
(2.5)
12.7±1.0
12.7±0.3
6.35±0.4
2.5+0.4
-0.1
2.5+0.4
-0.1
0±0.1
18.0+1.0
-0.5
6.0±0.5
9.0±0.5
(0.5)
16.0±0.5
Lessthan24.7
4.0±0.2
0.7±0.2
19.0±0.5
Thicknesslessthan0.38±0.05mm~0.5mm
P0Accumulatedpitchtolerance:±1mm/20pitches.
()Bracketedfiguresareforreferenceonly.
Rev1.1013March7,2006
元器件交易网
HT77XX
SOT-89&SOT-25CarrierTapeDimensions
SOT-89
Symbol
W
P
E
F
D
D1
P0
P1
A0
B0
K0
t
C
SOT-25
Symbol
W
P
E
F
D
D1
P0
P1
A0
B0
K0
t
C
CavityPitch
PerforationPosition
CavitytoPerforation(WidthDirection)
PerforationDiameter
CavityHoleDiameter
PerforationPitch
CavitytoPerforation(LengthDirection)
CavityLength
CavityWidth
CavityDepth
CarrierTapeThickness
CoverTapeWidth
Description
CarrierTapeWidth
Dimensionsinmm
8.0±0.3
4.0
1.75
3.5±0.05
1.5+0.1
1.5+0.1
4.0
2.0
3.15
3.2
1.4
0.20±0.03
5.3
Description
CarrierTapeWidth
CavityPitch
PerforationPosition
CavitytoPerforation(WidthDirection)
PerforationDiameter
CavityHoleDiameter
PerforationPitch
CavitytoPerforation(LengthDirection)
CavityLength
CavityWidth
CavityDepth
CarrierTapeThickness
CoverTapeWidth
Dimensionsinmm
12.0+0.3
-0.1
8.0±0.1
1.75±0.1
5.5±0.05
1.5+0.1
1.5+0.1
4.0±0.1
2.0±0.10
4.8±0.1
4.5±0.1
1.8±0.1
0.30±0.013
9.3
Rev1.1014March7,2006
元器件交易网
HT77XX
HoltekSemiconductorInc.(Headquarters)
No.3,,SciencePark,Hsinchu,Taiwan
Tel:886-3-563-1999
Fax:886-3-563-1189
HoltekSemiconductorInc.(TaipeiSalesOffice)
4F-2,No.3-2,YuanQuSt.,NankangSoftwarePark,Taipei115,Taiwan
Tel:886-2-2655-7070
Fax:886-2-2655-7373
Fax:886-2-2655-7383(Internationalsaleshotline)
HoltekSemiconductorInc.(ShanghaiSalesOffice)
7thFloor,Building2,No.889,YiShanRd.,Shanghai,China200233
Tel:021-6485-5560
Fax:021-6485-0313
HoltekSemiconductorInc.(ShenzhenSalesOffice)
43F,SEGPlaza,ShenNanZhongRoad,Shenzhen,China518031
Tel:0755-8346-5589
Fax:0755-8346-5590
ISDN:0755-8346-5591
HoltekSemiconductorInc.(BeijingSalesOffice)
Suite1721,JinyuTower,A129WestXuanWuMenStreet,XichengDistrict,Beijing,China100031
Tel:010-6641-0030,6641-7751,6641-7752
Fax:010-6641-0125
HolmateSemiconductor,Inc.(NorthAmericaSalesOffice)
46712FremontBlvd.,Fremont,CA94538
Tel:510-252-9880
Fax:510-252-9885
CopyrightÓ2006byHOLTEKSEMICONDUCTORINC.
Theinformationappear,Holtekas-
sumlicationsmentionedhereinareused
solelyforthepurposeofillustrationandHoltekmakesnowarrantyorrepresentationthatsuchapplicationswillbesuitable
withoutfurthermodification,norrecommendstheuseofitsproductsforapplicationthatmaypresentarisktohumanlife
¢sproductsarenotauthorizedforuseascriticalcomponentsinlifesupportdevices
mostup-to-dateinformation,
pleasevisitourwebsiteat.
Rev1.1015March7,2006
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