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LTC3858EUFD-1 Datasheet(PDF) 2 Page - Linear Technology

Part # LTC3858EUFD-1
Description  Low IQ, Dual 2-Phase Synchronous Step-Down Controller
Download  38 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3858EUFD-1 Datasheet(HTML) 2 Page - Linear Technology

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LTC3858-1

38581fb
absoluTe MaxiMuM raTings (Note 1)
orDer inForMaTion
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3858EUFD-1#PBF
LTC3858EUFD-1#TRPBF
38581
28-Lead(4mm
×5mm)PlasticQFN
–40°Cto125°C
LTC3858IUFD-1#PBF
LTC3858IUFD-1#TRPBF
38581
28-Lead(4mm
×5mm)PlasticQFN
–40°Cto125°C
LTC3858EGN-1#PBF
LTC3858EGN-1#TRPBF
LTC3858GN-1
28-LeadPlasticSSOP
–40°Cto125°C
LTC3858IGN-1#PBF
LTC3858IGN-1#TRPBF
LTC3858GN-1
28-LeadPlasticSSOP
–40°Cto125°C
ConsultLTCMarketingforpartsspecifiedwithwideroperatingtemperatureranges.*Thetemperaturegradeisidentifiedbyalabelontheshippingcontainer.
ConsultLTCMarketingforinformationonnon-standardleadbasedfinishparts.
Formoreinformationonleadfreepartmarking,goto:http://www.linear.com/leadfree/
Formoreinformationontapeandreelspecifications,goto:http://www.linear.com/tapeandreel/
InputSupplyVoltage(VIN)......................... –0.3Vto40V
TopsideDriverVoltages
BOOST1,BOOST2................................. –0.3Vto46V
SwitchVoltage(SW1,SW2)........................ –5Vto40V
(BOOST1-SW1),(BOOST2-SW2)................ –0.3Vto6V
RUN1,RUN2............................................... –0.3Vto8V
MaximumCurrentSourcedIntoPin
fromSource>8V...............................................100µA
SENSE1+,SENSE2+,SENSE1–
SENSE2–Voltages...................................... –0.3Vto28V
PLLIN/MODE,FREQVoltages.............. –0.3VtoINTVCC
9 10
TOP VIEW
29
SGND
UFD PACKAGE
28-LEAD (4mm 5mm) PLASTIC QFN
11 12 13
28 27 26 25 24
14
23
6
5
4
3
2
1
SENSE1+
SENSE1–
FREQ
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2–
BOOST1
BG1
VIN
PGND
EXTVCC
INTVCC
BG2
BOOST2
7
17
18
19
20
21
22
16
8
15
TJMAX=125°C,θJA=43°C/W
EXPOSEDPAD(PIN29)ISSGND,MUSTBESOLDEREDTOPCB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ITH1
VFB1
SENSE1+
SENSE1–
FREQ
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2–
SENSE2+
VFB2
ITH2
SS2
SS1
PGOOD1
TG1
SW1
BOOST1
BG1
VIN
PGND
EXTVCC
INTVCC
BG2
BOOST2
SW2
TG2
TJMAX=125°C,θJA=90°C/W
pin conFiguraTion
EXTVCC...................................................... –0.3Vto14V
ITH1,ITH2,VFB1,VFB2Voltages...................... –0.3Vto6V
PGOOD1Voltage......................................... –0.3Vto6V
SS1,SS2,INTVCCVoltages......................... –0.3Vto6V
OperatingJunctionTemperatureRange
(Note2).................................................. –40°Cto125°C
MaximumJunctionTemperature(Note3)............ 125°C
StorageTemperatureRange................... –65°Cto150°C
LeadTemperature(Soldering,10sec)
SSOP................................................................ 300°C


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