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 1.8V 1A SOT-223-3L
- 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)：1.8V
- 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-261-4, TO-261AA
- Supplier Device Package：SOT-223-3L
- Grade：-
- Qualification：-
Download product information
Overview
The LM1117GS-1.8 is a low dropout positive voltage regulator manufactured by HTC, designed to deliver up to 1A of output current. It provides a fixed 1.8V output with a typical dropout voltage of 1.2V at full load. The device features line regulation of 0.1% and load regulation of 0.2%. It operates within an input voltage range up to 12V and includes internal current limiting and thermal shutdown protection. The component is housed in a surface-mount SOT-223-3L package.
Feature Summary
- Delivers continuous output current up to 1A
- Low dropout voltage performance for efficient power management
- Integrated current limit and thermal shutdown protection
- Surface mount SOT-223-3L package design
Applications
- Active SCSI Terminators
- Portable and notebook computers
- SMPS post regulators
- Motherboard clock supplies
- Battery chargers
Procurement Notes
Verify the manufacturer marking on the component body matches HTC specifications. Confirm the part number suffix indicates the 1.8V fixed output variant. Ensure the package type corresponds to the SOT-223-3L footprint required for your PCB layout. Check datasheet revisions for any updates to electrical characteristics or thermal resistance values before finalizing procurement.
Selection Notes
Select this regulator when a stable 1.8V supply is required for loads drawing up to 1A. Ensure the input voltage remains within the specified operating range to maintain regulation. Consider thermal dissipation requirements based on the voltage drop and load current; a copper plane or heat sink may be necessary if the junction-to-ambient thermal resistance exceeds limits. Verify that the output capacitor meets stability requirements.
Part Context
This component belongs to the LM1117 series of low dropout linear regulators. The 'GS' suffix typically denotes the specific package and temperature grade configuration used by HTC. The '-1.8' suffix identifies the fixed output voltage setting. This series is widely used in portable electronics and industrial applications requiring reliable voltage regulation with minimal heat generation compared to standard linear regulators.
Replacement Considerations
LM1117DT-1.8 (Texas Instruments)
FAQ
What is the maximum input voltage for the LM1117GS-1.8?
The absolute maximum input voltage rating is 20V, but the recommended operating input voltage is up to 12V.
Does the LM1117GS-1.8 require an external capacitor for stability?
Yes, an output capacitor of 10µF or larger is required for output stability.
