LM1085IS-3.3 Texas Instruments In Stock
LM1085IS-3.3 is a 3A low-dropout linear voltage regulator with a fixed 3.3V output by Texas Instruments. Key specs: 3A output current, 1.5V dropout voltage, TO-263-3 package. From $0.91, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.9141(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3A high output current capability for demanding loads
- Low 1.5V dropout voltage minimizes power dissipation
- Fixed 3.3V output eliminates external resistor divider
- Built-in thermal shutdown and current limiting protection
- TO-263-3 surface-mount package for compact PCB designs
Applications
The LM1085IS-3.3 is widely used in post-regulation of switching supplies and battery-powered systems requiring a stable 3.3V rail. It suits applications such as microcontroller power supplies, FPGA core voltage regulation, and industrial control boards where a high-current, low-noise linear regulator is essential. Its robust protection features also make it suitable for automotive and telecommunications equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output current of the LM1085IS-3.3?
The LM1085IS-3.3 supports a maximum output current of 3A, making it suitable for powering high-current loads such as FPGAs, microcontrollers, and other digital logic circuits that require a stable 3.3V supply.
What is the dropout voltage of the LM1085IS-3.3?
The LM1085IS-3.3 has a typical dropout voltage of 1.5V at full 3A load. This means the input voltage must be at least 4.8V to maintain a regulated 3.3V output, which is important when selecting the upstream power source.
What package does the LM1085IS-3.3 come in?
The LM1085IS-3.3 is available in the TO-263-3 (D2PAK) surface-mount package, which offers excellent thermal performance due to its large exposed pad. This makes it ideal for high-current applications where heat dissipation on the PCB is critical.
What protection features does the LM1085IS-3.3 include?
The LM1085IS-3.3 includes built-in thermal shutdown, which disables the output when the junction temperature exceeds safe limits, and current limiting to protect against short-circuit conditions. These features enhance system reliability and simplify board-level protection design.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.1500 | $2.15 |
| 3+ | $1.9780 | $5.93 |
| 22+ | $1.8948 | $41.69 |
| 24+ | $1.8750 | $45.00 |
| 81+ | $1.1250 | $91.13 |
| 220+ | $0.9141 | $201.10 |
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