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 800MA TO252-3
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.2V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：10 mA
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：0°C ~ 125°C
- 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 LM1117DT-1.8 is a fixed positive low-dropout linear regulator manufactured by Texas Instruments, part of the LM1117 series. It provides a fixed 1.8 V output with an 800 mA maximum current capability. The device operates within an input voltage range of 3.2 V to 10 V and features a typical dropout voltage of 1.2 V at full load. It is housed in a TO-252 surface-mount package and supports an operating temperature range from -40 °C to +125 °C.
Feature Summary
- Fixed 1.8 V output voltage configuration
- High current delivery up to 800 mA
- Low dropout voltage for efficient power management
- Integrated thermal overload and current limit protection
Applications
- Battery-powered systems requiring stable low-voltage rails
- Post-regulation for switching power supplies
- Portable equipment power distribution
Procurement Notes
Verify the manufacturer designation carefully, as the LM1117 family was originally developed by National Semiconductor but is now produced by Texas Instruments. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance if required by your assembly specifications. Ensure the TO-252 package matches your PCB footprint design constraints.
Selection Notes
Select this component when a fixed 1.8 V rail is needed with moderate current requirements. Compare against adjustable variants like the LM1117DT-ADJ/NOPB if voltage flexibility is preferred. Consider the dropout characteristics relative to your minimum input voltage to ensure regulation stability under all load conditions.
Part Context
This device belongs to the LM1117 family of low-dropout regulators, which are widely used for their simplicity and reliability. While originally associated with National Semiconductor, current production and datasheets are managed by Texas Instruments. The DT-1.8 variant specifically targets applications needing a precise 1.8 V supply in a compact surface-mount form factor.
Replacement Considerations
Direct substitutes include the LM1117DT-1.8/NOPB for lead-free versions or the NCP1117DT18T5 from ON Semiconductor, which offers similar 1.8 V output and TO-252 packaging.
