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-223-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- 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)：1.4V @ 800mA
- Current - Output：1A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：Current Limit
- Protection Features：Over Current, Over Temperature, Transient Voltage
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223-3
- Grade：-
- Qualification：-
Download product information
Overview
The LB1117AADB180 is a positive fixed-output Low Dropout (LDO) linear regulator manufactured by Diodes Incorporated. It provides a stable 1.8V output with a maximum continuous current of 1A. The device features a typical dropout voltage of 1.4V at full load and maintains a quiescent current of 10mA. It includes internal protection mechanisms such as current limiting and thermal shutdown. The component operates within an ambient temperature range of -40°C to +125°C and is housed in a surface-mount package suitable for automated assembly.
Feature Summary
- Provides a fixed 1.8V output voltage with 1A current capability
- Includes built-in current limit and thermal shutdown protection
- Operates reliably across extended industrial temperature ranges
Applications
- Portable battery-powered equipment requiring efficient voltage regulation
- Consumer electronics utilizing low-noise power supplies
- Embedded systems needing stable logic-level voltage rails
Procurement Notes
Verify the specific suffix and marking code against the manufacturer's latest datasheet to ensure compatibility with your design requirements. Confirm that the package type matches your PCB footprint and that the thermal management strategy accounts for the device's power dissipation characteristics under maximum load conditions.
Selection Notes
Select this component when a fixed 1.8V rail is required with moderate current demands up to 1A. Consider its dropout voltage specifications relative to your minimum input voltage to ensure regulation stability. Evaluate the thermal performance in your enclosure design, as the device dissipates heat proportional to the voltage difference between input and output multiplied by the load current.
Part Context
This part belongs to the LB1117 series of LDO regulators from Diodes Incorporated. The series is designed for applications requiring simple, cost-effective voltage regulation with integrated protection features. It serves as a solution for converting higher unregulated or regulated voltages down to lower stable levels for sensitive digital and analog circuits.
Replacement Considerations
Check for direct pin-compatible alternatives within the same family offering different output voltages or packages. Verify if newer revisions of the LB1117 series offer improved thermal performance or updated packaging options while maintaining electrical equivalence.
