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 2.8V 300MA SOT23-5
- 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)：2.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.4V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：120 µA
- PSRR：55dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：Automotive
- Qualification：AEC-Q100
Download product information
Overview
The LDK130M28RY is a low-dropout linear voltage regulator manufactured by STMicroelectronics, designed for automotive applications. It provides a fixed output voltage of 2.8 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.9 V to 5.5 V and features a typical dropout voltage of 100 mV at 100 mA load. It exhibits a low quiescent current of 30 μA and consumes less than 1 μA in shutdown mode. The regulator includes logic-controlled electronic shutdown, short-circuit constant current limiting, and thermal protection. It is stabilized with a ceramic capacitor and meets AEC-Q100 qualification standards.
Feature Summary
- Logic-controlled electronic shutdown function enables total current consumption below 1 μA
- Internal short-circuit constant current limiting and thermal protection mechanisms
- Compatible with ceramic output capacitors for stability
Applications
- Low-power battery-powered automotive systems
- Automotive sensor power supplies
- Electronic control unit auxiliary power rails
Procurement Notes
Verify the specific suffix 'R' indicates reel packaging and 'Y' denotes the SOT23-5L package configuration as per manufacturer documentation. Confirm AEC-Q100 Grade 1 qualification status for automotive reliability requirements. Ensure compatibility with 1 μF ceramic output capacitors for stable operation. Check humidity sensitivity levels and storage conditions prior to assembly.
Selection Notes
Select this component when a fixed 2.8 V output is required for automotive-grade low-noise regulation. The SOT23-5L package suits space-constrained designs. Verify that the input voltage remains within the 1.9 V to 5.5 V range. Consider the 300 mA current capability against peak load demands. Evaluate the need for the enable pin functionality for power management strategies.
Part Context
This part belongs to the LDK130 series of low-dropout regulators from STMicroelectronics. The series offers various fixed output voltages ranging from 0.8 V to 3.5 V in 100 mV steps. Other packages in the family include SOT323-5L and DFN6 1.2x1.3. The M28 designation specifies the 2.8 V output variant.
Replacement Considerations
Consult official STMicroelectronics documentation for qualified substitutes within the LDK130 family or equivalent automotive-grade LDOs. Verify pinout compatibility and electrical specifications before substitution.
