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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 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)：13.2V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：100 µA
- PSRR：55dB ~ 50dB (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：-
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Overview
The LDK220M25R is a fixed-output linear voltage regulator from STMicroelectronics, providing a stable 2.5V output with a maximum current of 200mA. It operates within an input voltage range of 2.5V to 13.2V and features a typical dropout voltage of 100mV at 100mA load. The device incorporates logic-controlled electronic shutdown, reducing quiescent current to below 1µA in off mode. It includes internal protections against short circuits and thermal overload, ensuring reliable operation across a temperature range of -40°C to 125°C.
Feature Summary
- Logic-controlled electronic shutdown for ultra-low power consumption
- Internal short-circuit constant current limiting and thermal protection
- Compatible with ceramic capacitors for stability
Applications
- Battery-powered portable electronics
- Low noise analog circuit power supplies
- Embedded system voltage regulation
Procurement Notes
Verify the specific suffix 'M25R' corresponds to the 2.5V fixed output variant and SOT-23-5 package configuration. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering information matches the exact datasheet revision to avoid discrepancies in electrical characteristics or pinout definitions during procurement.
Selection Notes
Select this component when a fixed 2.5V rail is required with minimal external components. Its low quiescent current makes it suitable for battery-operated devices where standby power is critical. The enable pin allows for system-level power management integration. Verify that the input voltage does not exceed 13.2V and that the load current remains within the 200mA limit to maintain regulation.
Part Context
This part belongs to the LDK220 series of low-dropout regulators designed for high efficiency and low noise applications. The series offers various fixed output voltages and packages, including SOT-23-5L and DFN6. The LDK220M25R specifically targets applications requiring a precise 2.5V reference or supply with tight tolerance and low static current consumption.
Replacement Considerations
Check for LDK220 variants with different output voltages if 2.5V is not required. Verify pin compatibility with other SOT-23-5 LDOs from ST or competitors, noting potential differences in enable logic or capacitor requirements.
