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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 1.35A SOT89
- Series：-
- Mfr：Diotec Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：13.65V
- Voltage Dropout (Max)：1.25V @ 1A
- Current - Output：1.35A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：Current Limit
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89
- Grade：-
- Qualification：-
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Overview
The Diotec Semiconductor LDI1117-ADU is a low dropout (LDO) linear voltage regulator housed in an SOT-89 package. It provides a positive adjustable output voltage ranging from 1.25V to 13.65V with a maximum continuous output current of 1.35A. The device supports a maximum input voltage of 20V and features a typical quiescent current of 5mA. It includes internal protection mechanisms such as thermal shutdown and current limiting, ensuring reliable operation within the specified temperature range.
Feature Summary
- Provides an adjustable positive output voltage across a wide range using external resistors
- Integrates thermal shutdown and current limiting for enhanced circuit protection
- Designed for low dropout performance to maximize efficiency under varying load conditions
Applications
- Battery-powered systems requiring efficient voltage regulation
- Post-regulators for switching power supplies
- Portable equipment with limited power budgets
Procurement Notes
Verify the specific suffix 'ADU' corresponds to the SOT-89 package and adjustable output variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure handling procedures account for moisture sensitivity levels if storage conditions exceed recommended limits.
Selection Notes
Select this component when an adjustable output voltage is required within the 1.25V to 13.65V range. The SOT-89 package offers a compact solution for applications needing up to 1.35A output current. Consider the thermal performance and heat dissipation requirements associated with the chosen package style for high-current operations.
Part Context
This part belongs to the LDI1117 series of low dropout regulators manufactured by Diotec Semiconductor. The series includes fixed voltage variants alongside adjustable options. The LDI1117-ADU specifically denotes the adjustable version packaged in SOT-89, distinguishing it from other package types like SOT-223 found in related models.
Replacement Considerations
Compatible substitutes include other adjustable LDOs offering similar current ratings and voltage ranges. Verify pinout compatibility and thermal characteristics before substitution. Check for equivalent protection features and regulatory compliance.
