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 POS ADJ 1A TO252-3
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：18.7V
- 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-ADJ is a low dropout positive voltage regulator manufactured by TAEJIN. It provides an adjustable output voltage ranging from 1.25V to 13.8V using external resistors. The device supports a continuous output current of up to 1.0A with a maximum input voltage of 20V. It features a typical dropout voltage of 1.2V at full load and includes internal current limiting and thermal shutdown protection. The component is housed in a TO-252-3L surface mount package.
Feature Summary
- Adjustable output voltage configuration via external resistor network
- Integrated thermal overload and short-circuit current protection
- Low dropout performance under high load conditions
Applications
- Active SCSI bus terminators
- Portable and notebook computer power supplies
- Battery charger circuits
- SMPS post-regulators
Procurement Notes
Verify the manufacturer designation as TAEJIN for this specific part number, distinct from other industry sources listing Texas Instruments or HTC Korea. Confirm the package type matches the TO-252-3L specification provided in the datasheet. Ensure the ordering suffix aligns with the Tape & Reel supply format indicated in the official documentation.
Selection Notes
Select this component when an adjustable linear regulator capable of handling 1A loads is required. The TO-252-3L package offers suitable thermal dissipation characteristics for moderate power applications. Consider the 1.2V dropout voltage requirement relative to the minimum input voltage needed for the desired output level.
Part Context
This device belongs to the LM1117 series of low dropout regulators. The RS suffix specifically identifies the TO-252-3L surface mount package variant within the product family. It shares functional similarities with fixed-voltage versions but allows for flexible output setting through external components.
Replacement Considerations
LM1117S-ADJ (SOT-223 package)
FAQ
What is the maximum input voltage allowed?
The absolute maximum input voltage rating is 20V.
How is the output voltage determined?
The output voltage is set externally using a resistor divider network connected between the output and the adjust pin.
