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LD1085D2T90R

Description
9 V FIXED POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSSO2
CategoryPower/power management    The power supply circuit   
File Size1MB,27 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Environmental Compliance
Download Datasheet Parametric View All

LD1085D2T90R Overview

9 V FIXED POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSSO2

LD1085D2T90R Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerSTMicroelectronics
Parts packaging codeD2PAK
package instructionLEAD FREE, D2PAK-3
Contacts3
Reach Compliance Codenot_compliant
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 11.5 V
Nominal dropback voltage 11.3 V
Maximum absolute input voltage30 V
Maximum input voltage30 V
Minimum input voltage11 V
JESD-30 codeR-PSSO-G2
JESD-609 codee3
length10.2 mm
Maximum grid adjustment rate0.02%
Maximum load regulation0.06%
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals2
Working temperatureTJ-Max125 °C
Working temperature TJ-Min-40 °C
Maximum output current 13 A
Maximum output voltage 19.18 V
Minimum output voltage 18.82 V
Nominal output voltage 19 V
Package body materialPLASTIC/EPOXY
encapsulated codeTO-263
Encapsulate equivalent codeSMSIP3H,.55TB
Package shapeRECTANGULAR
Package formSMALL OUTLINE
method of packingTAPE AND REEL
Peak Reflow Temperature (Celsius)245
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height4.83 mm
surface mountYES
technologyBIPOLAR
Terminal surfaceTin (Sn)
Terminal formGULL WING
Terminal pitch2.54 mm
Terminal locationSINGLE
Maximum time at peak reflow temperature30
Maximum voltage tolerance2%
width9.15 mm
Base Number Matches1
LD1085
3 A low drop positive voltage regulator: adjustable and fixed
Datasheet
-
production data
Unlike PNP regulators, where a part of the output
current is wasted as quiescent current, the
LD1085 quiescent current flows into the load,
thus increase efficiency. Only a 10 µF minimum
capacitor is need for stability.
TO-220FP
TO-220
The device is supplied in TO-220, TO-220FP,
D²PAK and D²PAK/A packages. On-chip trimming
allows the regulator to reach a very tight output
voltage tolerance, within ± 1% at 25 °C.
D²PAK
D²PAK/A
Features
Typical dropout 1.3 V (at 3 A)
Three terminal adjustable or fixed output
voltage 1.8 V, 2.5 V, 3.3 V, 5 V
Guaranteed output current up to 3 A
Output tolerance ± 1% at 25 °C and ± 2% in full
temperature range
Internal power and thermal limit
Wide operating temperature range -40 °C to
125 °C
Package available: TO-220, TO-220FP,
D²PAK, D²PAK/A
Pinout compatibility with standard adjustable
VREG
Description
The LD1085 is a low drop voltage regulator able
to provide up to 3 A of output current. Dropout is
guaranteed at a maximum of 1.2 V at the
maximum output current, decreasing at lower
loads. The LD1085 is pin-to-pin compatible with
the older 3-terminal adjustable regulators, but
offers better performance in terms of drop and
output tolerance.
October 2013
This is information on a product in full production.
DocID6738 Rev 27
1/27
www.st.com
27
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