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Datasheet> All Categories > Power/power management> The power supply circuit> LD1117D50CTR
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LD1117D50CTR

Description
1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3
CategoryPower/power management    The power supply circuit   
File Size439KB，38 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
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LD1117D50CTR Overview

1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3

LD1117D50CTR Parametric

Parameter NameAttribute value
MakerSTMicroelectronics
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Reach Compliance Codeunknow
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 11.2 V
Nominal dropback voltage 11.1 V
Maximum absolute input voltage15 V
Maximum input voltage15 V
Minimum input voltage6.5 V
JESD-30 codeR-PDSO-G8
length4.9 mm
Maximum grid adjustment rate0.05%
Maximum load regulation0.05%
Number of functions1
Output times1
Number of terminals8
Working temperatureTJ-Max125 °C
Operating temperatureTJ-Mi-40 °C
Maximum output current 11.3 A
Maximum output voltage 15.1 V
Minimum output voltage 14.9 V
Nominal output voltage 15 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
method of packingTAPE AND REEL
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1.75 mm
surface mountYES
technologyBIPOLAR
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum voltage tolerance4%
width3.9 mm

Preview

Download Datasheet
LD1117 series
Low drop fixed and adjustable positive voltage regulators
Feature summary
■
■
■
■
■
■
■
■
Low dropout voltage (1V TYP.)
2.85V Device performances are suitable for
SCSI-2 active termination
Output current up to 800 mA
Fixed output voltage of: 1.2V, 1.8V, 2.5V,
2.85V, 3.0V, 3.3V, 5.0V
Adjustable version availability (V
rel
=1.25V)
Internal current and thermal limit
Available in ± 1% (at 25°C) and 2% in full
temperature range
Supply voltage rejection: 75dB (typ.)
SOT-223
SO-8
DPAK
TO-220
Description
The LD1117 is a LOW DROP Voltage Regulator
able to provide up to 800mA of Output Current,
available even in adjustable version (Vref=1.25V).
Concerning fixed versions, are offered the
following Output Voltages: 1.2V,1.8V,2.5V,2.85V,
3.0V 3.3V and 5.0V. The 2.85V type is ideal for
SCSI-2 lines active termination. The device is
supplied in: SOT-223, DPAK, SO-8 and TO-220.
The SOT-223 and DPAK surface mount packages
optimize the thermal characteristics even offering
a relevant space saving effect. High efficiency is
assured by NPN pass transistor. In fact in this
case, unlike than PNP one, the Quiescent Current
flows mostly into the load. Only a very common
10µF minimum capacitor is needed for stability.
On chip trimming allows the regulator to reach a
very tight output voltage tolerance, within ± 1% at
25°C. The ADJUSTABLE LD1117 is pin to pin
compatible with the other standard. Adjustable
voltage regulators maintaining the better
performances in terms of Drop and Tolerance.
Block diagram
December 2006
Rev. 20
1/38
www.st.com
38

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Description 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3 1.25 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3
Maker STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Parts packaging code SOIC SOIC SOIC SOIC SOIC SOIC SOIC SOIC SOIC SOIC
package instruction SOP, SOP8,.25 SO-8 SOP, SOP8,.25 SO-8 SOP, SOP8,.25 SOP, SOP8,.25 SOP, SOP8,.25 SOP, SOP8,.25 SOP, SOP8,.25 SOP, SOP8,.25
Contacts 8 8 8 8 8 8 8 8 8 8
Reach Compliance Code unknow compli compli compli _compli _compli _compli _compli _compli _compli
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Adjustability FIXED ADJUSTABLE FIXED FIXED FIXED FIXED FIXED FIXED FIXED FIXED
Maximum drop-back voltage 1 1.2 V 1.2 V 1.2 V 1.2 V 1.3 V 1.2 V 1.2 V 1.3 V 1.2 V 1.3 V
Nominal dropback voltage 1 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V
JESD-30 code R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8
length 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm
Number of functions 1 1 1 1 1 1 1 1 1 1
Output times 1 1 1 1 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8 8 8 8 8
Working temperatureTJ-Max 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C
Maximum output current 1 1.3 A 0.8 A 1.3 A 1.3 A 0.8 A 0.8 A 0.8 A 0.8 A 0.8 A 0.8 A
Maximum output voltage 1 5.1 V 15 V 3.06 V 2.91 V 2.6 V 2.55 V 1.212 V 1.87 V 1.84 V 1.224 V
Minimum output voltage 1 4.9 V 1.25 V 2.94 V 2.79 V 2.4 V 2.45 V 1.188 V 1.73 V 1.76 V 1.176 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP SOP SOP SOP SOP SOP SOP SOP
Encapsulate equivalent code SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
method of packing TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Regulator type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm
surface mount YES YES YES YES YES YES YES YES YES YES
technology BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
width 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm
Maximum absolute input voltage 15 V - 15 V 15 V 15 V 15 V 15 V 15 V 15 V 15 V
Maximum input voltage 15 V - 12 V 10 V 10 V 10 V 13.75 V 8 V 8 V 13.75 V
Minimum input voltage 6.5 V - 4.5 V 4.25 V 3.9 V 3.9 V 1.5 V 3.3 V 3.3 V 1.5 V
Maximum grid adjustment rate 0.05% - 0.006% 0.006% 0.03% 0.006% 0.0024% 0.03% 0.006% 0.012%
Maximum load regulation 0.05% - 0.01% 0.01% 0.03% 0.01% 0.0048% 0.03% 0.01% 0.012%
Nominal output voltage 1 5 V - 3 V 2.85 V 2.5 V 2.5 V 1.2 V 1.8 V 1.8 V 1.2 V
Maximum voltage tolerance 4% - 2% 2.1% 4% 2% 5% 3.89% 2.2% 6.7%
Is it Rohs certified? - conform to - - conform to conform to conform to conform to conform to conform to
JESD-609 code - e4 - - e3 e3 e3 e3 e3 e3
Humidity sensitivity level - 1 - - 1 1 1 1 1 1
Peak Reflow Temperature (Celsius) - 260 - - 260 260 260 260 260 260
Terminal surface - Nickel/Palladium/Gold (Ni/Pd/Au) - - Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed
Maximum time at peak reflow temperature - 40 - - 30 30 30 40 40 30

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