LM317HVH ,3-Terminal Adjustable RegulatorGeneral Descriptionregulator, a programmable output regulator, or by connectingThe LM117HV/LM317HV ..
LM317HVT ,3-Terminal Adjustable RegulatorFeaturesNormally, no capacitors are needed unless the device is situ-n Adjustable output down to 1. ..
LM317HVT/NOPB ,3-Terminal 60V 1.5A Adjustable Regulator 3-TO-220 0 to 125Features 3 DescriptionThe LMx17HV is an adjustable 3-terminal positive1• Up to 60 V Input to Output ..
LM317K ,1.5A Adjustable Positive Voltage RegulatorLM117/217LM3171.2V TO 37V VOLTAGE REGULATOR■ OUTPUT VOLTAGE RANGE: 1.2 TO 37V■ OUTPUT CURRENT IN EX ..
LM317K STEEL ,3-Terminal Adjustable Regulatorapplications requiring greater output current, see LM150LM117 series offers full overload protectio ..
LM317KC ,3-Terminal Adjustable RegulatorMaximum Ratings(1)over virtual junction temperature range (unless otherwise noted)MIN MAX UNITV – V ..
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LMC1608TP-16NG , CERAMIC CHIP INDUCTORS
LMC1608TP-16NG , CERAMIC CHIP INDUCTORS
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LMC1608TP-16NJ , CERAMIC CHIP INDUCTORS
LM117HVH/883-LM117HVK/883-LM317HVH-LM317HVT
3-Terminal Adjustable Regulator
LM117HV/LM317HV
3-Terminal Adjustable Regulator
General DescriptionThe LM117HV/LM317HV are adjustable 3-terminal positive
voltage regulators capableof supplyingin excessof 1.5A
overa 1.2Vto 57V output range. They are exceptionally
easyto use and require only two external resistorstosetthe
output voltage. Further, both line and load regulationare bet-
ter than standard fixed regulators. Also, the LM117HVis
packagedin standard transistor packages which are easily
mounted and handled. additionto higher performance than fixed regulators, the
LM117HV series offersfull overload protection available only IC’s. Includedonthe chip are current limit, thermal over-
load protection and safe area protection.All overload protec-
tion circuitry remains fully functional evenif the adjustment
terminalis disconnected.
Normally,no capacitorsare needed unlessthe deviceis situ-
ated more than6 inches from the input filter capacitorsin
which casean input bypassis needed.An optional output
capacitor canbe addedto improve transient response. The
adjustment terminal canbe bypassedto achieve very high
ripple rejections ratios which are difficultto achieve with
standard 3-terminal regulators.
Besides replacing fixed regulators,the LM117HVis usefulin wide varietyof other applications. Since the regulatoris
“floating” and sees only the input-to-output differential volt-
age, suppliesof several hundred volts canbe regulatedas
longas the maximum inputto output differentialis not ex-
ceeded,i.e.donot shortthe outputto ground.
Also,it makesan especially simple adjustable switching
regulator,a programmable output regulator,orby connecting fixed resistor between the adjustment and output, the
LM117HV canbe usedasa precision current regulator. Sup-
plies with electronic shutdown canbe achievedby clamping
the adjustment terminalto ground which programsthe out-
putto 1.2V where most loads draw little current.
The LM117HVK STEEL and LM317HVK STEEL are pack-
agedin standard TO-3 transistor packages, while the
LM117HVH and LM317HVH are packagedina solid Kovar
base TO-39 transistor package. The LM317HVT usesa TO-
220 plastic package. The LM117HVis ratedfor operation
from −55˚Cto +150˚C, and the LM317HV from 0˚Cto
+125˚C.
Features Adjustable output downto 1.2V Guaranteed 1.5A output current Line regulation typically 0.01%/V Load regulation typically 0.1% Current limit constant with temperature 100% electrical burn-in Eliminatesthe needto stock many voltages Standard 3-lead transistor package80dB ripple rejection Outputis short-circuit protectedP+ Product Enhancement tested
Typical Applications
1.2V-45V Adjustable RegulatorDS009062-1
Full output currentnot availableat high input-output voltages
†Optional—improves transient response. Output capacitorsinthe rangeof1μFto 1000μFof aluminumor tantalum electrolytic
are commonly usedto provide improved output impedanceand rejectionof transients.
*Neededif deviceis more than6 inches fromfilter capacitors.
April 2000
LM1
17HV/LM317HV
3-T
erminal
Adjustable
Regulator
