LM1085IS-ADJ/NOPB
Texas InstrumentsUnited States

LM1085IS-ADJ/NOPB

ActiveVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsDDPAK/TO-263

IC REG LIN POS ADJ 3A DDPAK

LM1085IS-ADJ/NOPB is a 3A adjustable positive linear regulator in DDPAK/TO-263 package, with a maximum dropout of 1.5V, operating temperature from -40°C to 125°C, featuring current limiting and thermal protection.Checked against the datasheet

See alternativesAsk AI FAEDatasheet PDF

All alternatives

View full report

Technical parameters

Key specs

Output voltage1.25 ~ 15 V
Output current3 AMax
Input voltage29 ~ 15 V
Dropout voltage1.3 VTyp · 1.5 V (Max) at IOUT=3A，-40°C ≤ TJ ≤ 125°C
Quiescent current5 mATyp

Datasheet-verified parameters

19 items
ParameterValue and test conditionsSource
Output VoltageAdjustable (1.25V to 15V via external resistors); VREF = 1.250 V (Typ) at IOUT=10mA, VIN-VOUT=3V
Output Current3 A
Input Voltage RangeMax Input to Output Voltage Differential: 29 V (Absolute Max); Recommended Operating Conditions imply VIN-VOUT up to 15V for regulation
Dropout Voltage1.3 V (Typ), 1.5 V (Max) at IOUT=3A, -40°C ≤ TJ ≤ 125°C
Quiescent Current5 mA (Typ) for fixed output versions (GND pin); Adjust Pin Current ~57 µA at 25°C
PackageDDPAK/TO-263 (KTT), 3 Pins
Operating Temperature-40°C to 125°C
GradeIndustrial (Inferred from -40 to 125°C range and 'IS' suffix in part number)
RoHSROHS Exempt
Recommended Operating Junction Temperature-40°C to 125°C
Absolute Maximum Junction Temperature150°C
Storage Temperature Range-65°C to 150°C
Line Regulation0.015 % (Typ), 0.2 % (Max) at IOUT=10mA, 1.5V ≤ (VIN-VOUT) ≤ 15V
Load Regulation0.1 % (Typ), 0.3 % (Max) at (VIN-VOUT)=3V, 10mA ≤ IOUT ≤ IFULL LOAD
Reference Voltage1.238 V (Min), 1.250 V (Typ), 1.262 V (Max) at IOUT=10mA, VIN-VOUT=3V
ESD Rating±2000 V (HBM)
Protection FeaturesCurrent Limiting and Thermal Protection
Pin Count3
Package Body Size10.18 mm × 8.41 mm (Nom)
All parameters (21)ExpandCollapse
Power
Current - Output3A
Current - Quiescent (Iq)10 mA
Voltage Dropout (Max)1.5V @ 3A
Voltage - Input (Max)29V
Voltage - Output (Max)15V
Voltage - Output (Min/Fixed)1.25V
AC and DC characteristics
PSRR75dB (120Hz)
Environment and package
Mounting TypeSurface Mount
Operating Temperature-40°C ~ 125°C (TJ)
PackageTube
Package / CaseTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Supplier Device PackageDDPAK/TO-263-3
Other
Base Product NumberLM1085
Control Features-
MfrTexas Instruments
Number of Regulators1
Output ConfigurationPositive
Output TypeAdjustable
Product StatusActive
Protection FeaturesOver Current, Over Temperature
Series-

Pinout and package

PackageDDPAK/TO-263 (KTT), 3 Pins

PinNameFunctionSource
1ADJ/GND: Adjust pin for the adjustable output voltage version. Ground pin for the fixed output voltage versions.
2OUTPUT: Output voltage pin for the regulator.
3INPUT: Input voltage pin for the regulator.

Documents

DatasheetDatasheet · 1.8 MB · 2026-11-02
Open document center

Datasheet-verified content is extracted by AI from the manufacturer datasheet. Click a page number to view the original.