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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 1.2A 6-DFN
- 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)：1.2V
- 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：6-WFDFN Exposed Pad
- Supplier Device Package：6-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LDL112PU12R is a low-dropout linear regulator from STMicroelectronics, providing 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 features a low quiescent current of 35 μA typical at no-load. The device includes reverse current protection, logic-controlled electronic shutdown consuming less than 1 μA, and internal current and thermal limits. It is stabilized by a ceramic capacitor and available in DFN6 packages.
Feature Summary
- Reverse current protection prevents backflow when the output voltage exceeds the input voltage.
- Logic-controlled enable function allows for efficient power management via electronic shutdown.
- Compatible with small ceramic output capacitors, simplifying circuit design.
Applications
- Low power battery-powered applications
- Portable consumer electronics
- Embedded systems requiring stable voltage regulation
Procurement Notes
Verify the specific suffix PU12R against the official datasheet to confirm the fixed 1.2 V output voltage and DFN6 package configuration. Ensure compatibility with required PCB footprint dimensions and thermal relief requirements for the selected package variant during procurement planning.
Selection Notes
Select this component for designs requiring high efficiency under light loads due to its low quiescent current. The inclusion of reverse current protection makes it suitable for systems where output sources may exceed input levels. Verify that the application environment stays within the -40 °C to +125 °C operating temperature range.
Part Context
This part belongs to the LDL112 series of low-dropout regulators designed for battery-operated devices. The series emphasizes low static current consumption and robust protection features to extend battery life and ensure reliability in portable applications.
Replacement Considerations
Consult the manufacturer's cross-reference documentation for verified substitutes. Generic LDO replacements may lack the specific reverse current protection or low quiescent current characteristics of the original component.
