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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 1.5A D2PAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.5V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：82dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：D2PAK
- Grade：-
- Qualification：-
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Overview
The LD1086D2T18TR is a positive linear low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 1.8V with a maximum continuous output current of 1.5A. The device supports an input voltage range up to 30V and operates within a junction temperature range of -40°C to +125°C. It features internal overcurrent and thermal overload protection mechanisms. The component is housed in a surface-mount D2PAK package, specifically TO-263-3 with a tab.
Feature Summary
- Fixed 1.8V output configuration for stable power supply applications
- Integrated overcurrent and thermal shutdown protection for system safety
- Low dropout performance enabling efficient regulation under varying load conditions
Applications
- Portable equipment power management
- Battery-powered systems requiring regulated voltage rails
- General-purpose linear regulation in consumer electronics
Procurement Notes
Verify the specific manufacturer part number against official STMicroelectronics documentation to confirm availability status. Note that public records indicate this specific variant may be obsolete or no longer manufactured. Ensure compatibility with design-in requirements before procurement attempts.
Selection Notes
Select this component when a fixed 1.8V rail is required with high current capability up to 1.5A. The D2PAK package offers robust thermal dissipation for surface-mount assembly. Consider alternative active LDOs if current production availability is critical for long-term manufacturing.
Part Context
This part belongs to the LD1086 series of adjustable and fixed LDO regulators from STMicroelectronics. The series is designed for applications requiring low noise and high ripple rejection. The D2PAK packaging variant provides enhanced thermal performance compared to smaller SOT packages.
Replacement Considerations
Public data indicates LD1086D2T18TR is obsolete. Potential substitutes include other 1.8V fixed LDOs from the same family or compatible third-party equivalents offering identical pinouts and electrical characteristics.
