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LM3460M5-1.2-LM3460M5-1.5-LM3460M5--1.5-LM3460M5X-1.2-LM3460M5X-1.5
Precision Controller for GTLp and GTL Bus Termination
LM3460-1.2, -1.5
Precision Controller for GTLp and GTL Bus T ermination
General DescriptionThe LM3460isa monolithic integrated circuit designedfor
precision controlof GTLplus and GTL Bus termination. This
controlleris availableina tiny SOT23-5 package, andin-
cludesan internally compensatedop amp,a bandgap refer-
ence,an NPN output transistor, and voltage setting resistors. trimmed precision bandgap voltage reference utilizes tem-
perature drift curvature correctionfor excellent voltage stabil-
ity overthe operating range. The precision output control en-
ables the termination voltageto maintain tight regulation,
despite fast switching requirementson the bus.
The LM3460 controlleris designedtobe used witha high
current(> 7A) NPN pass transistorto provide the high cur-
rent neededforthe bus termination. The wide bandwidthof
the feedback loop provides excellent transient response,
and greatly reduces the output capacitance required, thus
reducing cost and board space requirements.
Features Precision output (1%) Output voltage canbe adjusted Extremely fast transient responsein GTLp and GTL bus
termination Tiny SOT23-5 package Output voltage capabilityfor GTLor GTLp Low temperature coefficient
Applications GTL bus termination (1.2V output 7A) GTLp bus termination (1.5V output 7A) Adjustable high-current linear regulator
Connection Diagram and Package Information
Ordering Information
Voltage Order Number Package Marking SuppliedAs1.5 LM3460M5-1.5 D06A 1000 Unit Incrementson Tape and Reel
1.5 LM3460M5X-1.5 D06A 3000 Unit Incrementson Tape and Reel
1.2 LM3460M5-1.2 D09A 1000 Unit Incrementson Tape and Reel
1.2 LM3460M5X-1.5 D09A 3000 Unit Incrementson Tape and Reel
MARKING CODE:Thefirst letter″D″ identifiesthepartasa Driver,andthe nexttwo numbers definethe voltageforthe part.The fourth letter indicatesthe
grade,with″A″ designatingthe prime gradeof product.
AVAILABILITY:The SOT23-5 packageisonly availablein quantityof 1000on tapeandreel (designatedbythe letters ″M5″inthepart number),orin quantity 3000on tapeandreel (indicatedbythe letters ″M5X″inthepart number).
DS012603-1
*This resistorisnot usedonthe LM3460-1.2.
LM3460 Functional Diagram
5-Lead Outline Package (M5)
Actual SizeDS012603-2
DS012603-3
*No internal connection,but shouldbe solderedtoPC boardfor best heattransfer.
Top View
SeeNS package Number MF05AJuly 2000
LM3460-1.2,
Precision
Controller
for
GTLp
and
GTL
Bus
ermination
