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Product Detailed Parameters
- Description：IC REG LINEAR 5V 200MA 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)：13.2V
- Voltage - Output (Min/Fixed)：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：6-XFDFN
- Supplier Device Package：6-DFN (1.2x1.3)
- Grade：-
- Qualification：-
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Overview
The LDK220PU50R is a low-dropout linear voltage regulator manufactured by STMicroelectronics, providing a fixed 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 and output discharge functions, supporting ceramic capacitors for stability. It includes internal overcurrent and thermal protection mechanisms and is available in a compact 6-DFN (1.2x1.3mm) surface-mount package.
Feature Summary
- Logic-controlled electronic shutdown with output discharge function
- Compatible with ceramic output capacitors for stability
- Internal overcurrent and thermal limit protection
Applications
- Portable battery-powered equipment
- Handheld devices requiring low quiescent current
- General-purpose power management in industrial applications
Procurement Notes
Verify the specific package variant and output tolerance against the official datasheet before procurement. Confirm that the 6-DFN footprint matches the design layout. Ensure compatibility with ceramic output capacitors as specified in the technical documentation. Check for RoHS compliance status relevant to the target market regulations.
Selection Notes
Select this component when a fixed 5V output is required with high efficiency under light loads due to low quiescent current. The 6-DFN package suits space-constrained designs. Verify that the input voltage remains within the 2.5V to 13.2V range and that the load does not exceed 200mA. Consider the thermal performance if operating near maximum temperature limits.
Part Context
This part belongs to the LDK220 series of low-dropout regulators from STMicroelectronics. The series offers various fixed and adjustable output voltages in multiple packages including SOT23-5L, SOT323-5L, SOT-89, and DFN6. The LDK220PU50R specifically denotes the 5V fixed output version in the 6-DFN package.
Replacement Considerations
Other variants within the LDK220 family may serve as substitutes depending on required output voltage and package type. Verify pinout compatibility and electrical specifications such as dropout voltage and quiescent current before substitution.
