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Product Detailed Parameters
- Description：IC REG LINEAR 2.8V 200MA 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)：0.3V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：100 µA
- PSRR：55dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
Download product information
Overview
The LDK120M28R is a low-dropout linear voltage regulator from STMicroelectronics, delivering a maximum output current of 200 mA. It features a fixed 2.8 V output and operates within an input voltage range of 1.9 V to 5.5 V. The device exhibits ultra-low dropout characteristics with a typical value of 100 mV at a 100 mA load. Quiescent current is maintained at a maximum of 100 μA, dropping below 1 μA in shutdown mode. It ensures stability using ceramic capacitors and includes internal overload and thermal protection mechanisms.
Feature Summary
- Ultra-low dropout performance for efficient power management
- Low quiescent current suitable for battery-powered applications
- Logic-controlled electronic shutdown for extended standby life
- Internal current limiting and thermal protection safeguards
Applications
- Always-on automotive body and interior functions
- Low-power battery-operated consumer electronics
- Portable devices requiring stable voltage regulation
Procurement Notes
Verify the specific suffix 'R' against the manufacturer's official documentation to confirm packaging details such as reel or cut tape specifications. Ensure the component meets AEC-Q100 qualification requirements if intended for automotive deployment. Cross-reference the exact part number with authorized distributors to validate authenticity and supply chain integrity before procurement.
Selection Notes
Select this regulator when a fixed 2.8 V output is required with a maximum load of 200 mA. It is appropriate for designs prioritizing low noise and minimal static current consumption. Verify that the application environment stays within the -40 °C to +125 °C operating temperature range. Confirm compatibility with ceramic output capacitors to ensure circuit stability.
Part Context
This component belongs to the LDK120 series of ultra-low dropout voltage regulators. The series provides high-precision regulation with wide fixed output options ranging from 0.8 V to 3.5 V. It is designed for harsh environments, offering robust protection features and compatibility with small form-factor packages like SOT23-5L and DFN6.
FAQ
What type of output capacitor is required for stability?
The LDK120M28R is designed to remain stable with a ceramic capacitor on the output.
Does the device include protection against short circuits?
Yes, it features internal current overload protection and thermal protection functions.
