LT3081IR#TRPBF Analog Devices Integrated Circuit (Other) In Stock
The LT3081IR#TRPBF is a 1.5 A adjustable LDO linear regulator from Analog Devices with a single-resistor programmable output and 1.23 V dropout voltage. It operates up to 125 °C junction temperature in a rugged 7-pin package. From $3.90, in stock, worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- LT3081IR#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5500(MOQ 19)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3081IR#TRPBF?
- 1.5 A output current with single-resistor programmable output voltage for simplified design
- 1.23 V typical dropout voltage enabling low-headroom operation in space-constrained power supplies
- Rugged 7-pin PSSO package rated to 125 °C junction temperature for industrial and harsh-environment use
What is LT3081IR#TRPBF used for?
The LT3081IR#TRPBF is designed for industrial power supplies, test and measurement equipment, and communications hardware requiring a robust, high-current adjustable LDO with low dropout. Its single-resistor programming simplifies output voltage setting compared to traditional two-resistor divider designs, reducing board area and component count. It is also suitable for paralleling multiple units to increase output current capacity in high-load applications.
What are the specifications of LT3081IR#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1462 |
| YTEOL | 10 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Nom | 1.23V |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1.5A |
| Output Voltage1-Max | 34.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LT3081IR#TRPBF datasheet?
LT3081IR#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3081IR#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the single-resistor programming of the LT3081IR#TRPBF simplify power supply design?
The LT3081IR#TRPBF uses a single resistor from the SET pin to ground to program the output voltage, unlike traditional LDOs that require a two-resistor feedback divider. This approach reduces the component count by 1 resistor, simplifies the PCB layout, and allows multiple units to be paralleled for higher current with matched output voltages.
What is the dropout voltage of the LT3081IR#TRPBF and why does it matter for battery-powered designs?
The LT3081IR#TRPBF has a typical dropout voltage of 1.23 V at 1.5 A output, which means the input supply needs to be only 1.23 V above the desired output voltage. This low headroom is critical in battery-powered equipment where the supply rail sags during discharge, ensuring regulation is maintained longer and maximizing usable battery capacity.
Can the LT3081IR#TRPBF be paralleled to deliver currents higher than 1.5 A?
Yes, the LT3081IR#TRPBF is designed to be paralleled with additional units to scale output current beyond 1.5 A; each paralleled device shares current accurately due to its current-source-based reference architecture, unlike traditional voltage-reference LDOs that require ballast resistors and suffer from unequal current sharing.
What operating temperature range does the LT3081IR#TRPBF support for industrial applications?
The LT3081IR#TRPBF supports a maximum junction temperature of 125 °C and is rated for industrial temperature environments, making it suitable for telecom base stations, industrial automation equipment, and outdoor power modules that must operate reliably across wide ambient temperature swings without derating output current significantly.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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|---|---|---|
| 19+ | $6.0300 | $114.57 |
| 1000+ | $4.5500 | $4550.00 |
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