ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1A TO252-3
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.3V @ 1A
- Current - Output：1A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252-3
- Grade：-
- Qualification：-
Download product information
Overview
The LM1117RS-2.5 is a fixed positive low-dropout linear voltage regulator manufactured by HTC, delivering a nominal output of 2.5V with a maximum continuous current of 1A. It operates within an input voltage range up to 12V and features a typical dropout voltage of 1.2V at full load. The device provides line regulation of 0.1% and load regulation of 0.2%. It incorporates internal thermal shutdown and current limiting protection mechanisms.
Feature Summary
- Provides stable 2.5V fixed output with high efficiency under varying loads
- Features integrated over-current and thermal overload protection for system safety
- Designed for surface-mount applications with compact footprint options
Applications
- Active SCSI terminators
- Portable and notebook computer power supplies
- SMPS post-regulators
- Motherboard clock supply circuits
- Battery charger systems
Procurement Notes
Verify the manufacturer marking on the component body matches 'LM1117C 2.5' to confirm authenticity. Ensure the package type corresponds to TO-252 (DPAK) as indicated by the RS suffix in the ordering information. Cross-reference the datasheet revision date against your procurement records to ensure compliance with the latest electrical specifications.
Selection Notes
Select this component when a precise 2.5V rail is required for digital logic or analog reference circuits. The TO-252 package offers superior thermal dissipation compared to SOT-89, making it suitable for higher current demands. Verify that the input voltage remains below the 12V operating limit to prevent excessive power dissipation and potential thermal throttling during operation.
Part Context
This part belongs to the LM1117 family of low-dropout regulators produced by HTC. The RS designation specifically identifies the TO-252 surface-mount package variant. Other variants in the series include the SOT-223 (S suffix) and SOT-89 (F suffix), offering flexibility for different PCB layout constraints while maintaining identical electrical performance characteristics.
Replacement Considerations
Compatible substitutes include LM1117TS-2.5 (SOT-223 package) and LM1117FS-2.5 (SOT-89 package). These alternatives share the same pinout and electrical parameters but differ in physical dimensions and thermal resistance values.
