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Product Detailed Parameters
- Description：IC REG LINEAR 1V 1.2A 8-SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.6V @ 1.2A
- Current - Output：1.2A
- Current - Quiescent (Iq)：70 µA
- Current - Supply (Max)：400 µA
- PSRR：57dB (1kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Reverse Current
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LDL112D10R is a low-dropout linear regulator manufactured by STMicroelectronics, designed to provide a maximum output current of 1.2 A with a typical dropout voltage of 300 mV at 1 A load. It operates within an input voltage range of 1.6 V to 5.5 V and delivers a fixed 1.0 V output. The device features a low quiescent current of 35 μA typical at no-load and includes reverse current protection, internal current limit, and thermal shutdown. It is stabilized by a ceramic capacitor and offers logic-controlled electronic shutdown with total current consumption lower than 1 μA in off mode.
Feature Summary
- Reverse current protection prevents backflow from output to input
- Logic-controlled enable pin allows for deep shutdown mode
- Compatible with small ceramic output capacitors
- Integrated thermal and current limiting protections
Applications
- Low power battery-powered applications
- Portable devices requiring efficient voltage regulation
- Systems needing reverse current isolation
Procurement Notes
Verify the specific suffix 'D10' confirms the 1.0 V fixed output voltage variant. Confirm the package type matches the design requirements, as the LDL112 series utilizes DFN6 or similar packages. Ensure the ordering code aligns with the required tape and reel specifications for automated assembly processes.
Selection Notes
Select this component when a fixed 1.0 V rail is required with high efficiency under heavy loads. The low dropout characteristic makes it suitable for batteries nearing depletion. Consider the 1.2 A current capability and the need for reverse current protection in systems where the output might be powered externally.
Part Context
This part belongs to the LDL112 family of low-dropout regulators known for low quiescent current and robust protection features. The family supports various fixed voltages and adjustable options, packaged in compact forms like DFN6 to suit space-constrained portable electronics designs.
Replacement Considerations
Check for other LDL112 variants with different output voltages if the 1.0 V specification is flexible. Verify pin compatibility with alternative LDOs offering similar 1.2 A current ratings and reverse current protection capabilities.
