LM1086IS-1.8 Texas Instruments Integrated Circuit (Other) In Stock
LM1086IS-1.8 is a 1.5A low dropout positive voltage regulator with fixed 1.8V output, featuring 1.3V typical dropout voltage and up to 18V input. Ideal for battery-powered systems. From $1.00 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- LM1086IS-1.8 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0002(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 1.8V output with ±1.5% accuracy for stable system power
- Low 1.3V typical dropout voltage, supports operation down to 3.3V input
- 1.5A output current capability suitable for medium-load applications
- Wide input voltage range up to 18V (absolute max 27V)
- SOT-223 (IS) package for excellent thermal dissipation
Applications
The LM1086IS-1.8 is well suited for battery-powered portable electronics and low-voltage microcontroller systems requiring a stable 1.8V rail. It is commonly used in DSP and FPGA core voltage regulation, as well as post-regulator stages in point-of-load power supplies. Its low dropout characteristic makes it ideal for single-cell Li-ion or regulated 3.3V bus step-down applications.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.5V |
| Dropout Voltage1-Nom | 1.3V |
| Input Voltage Absolute-Max | 27V |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 3.3V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e0 |
| Line Regulation-Max | 0.006% |
| Load Regulation-Max | 0.02% |
| 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 | 1.836V |
| Output Voltage1-Min | 1.764V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.55TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | RAIL |
| Peak Reflow Temperature (Cel) | 235 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 20 |
| Voltage Tolerance-Max | 2% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM1086IS-1.8:
Frequently Asked Questions
What is the output voltage and dropout voltage of the LM1086IS-1.8?
The LM1086IS-1.8 provides a fixed 1.8V output voltage with a typical dropout voltage of 1.3V and a maximum of 1.5V at full load. This low dropout allows the device to regulate from input voltages as low as 3.3V, making it suitable for battery-powered and tight-headroom designs.
What are the input voltage limits for the LM1086IS-1.8?
The LM1086IS-1.8 supports a minimum input voltage of 3.3V and a maximum operating input voltage of 18V, with an absolute maximum rating of 27V. Exceeding the absolute maximum may permanently damage the device, so adequate input voltage margin should be maintained in design.
What applications is the LM1086IS-1.8 best suited for?
The LM1086IS-1.8 is ideal for powering 1.8V logic rails in FPGAs, DSPs, microcontrollers, and memory devices. It is also used in portable battery-powered equipment, telecom line cards, and post-regulation in distributed power architectures where a stable low-dropout 1.8V supply is required.
What package does the LM1086IS-1.8 come in, and are there pin-compatible alternatives?
The LM1086IS-1.8 is available in a SOT-223 (IS) package, which offers a large thermal pad for improved heat dissipation. Pin-compatible alternatives with the same 1.8V fixed output include the LM1117-1.8 and AMS1117-1.8, though dropout voltage and accuracy specifications may differ.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.6400 | $2.64 |
| 3+ | $1.9800 | $5.94 |
| 45+ | $1.0002 | $45.01 |
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