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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 200MA 6-DFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：13.2V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：100 µA
- PSRR：60dB ~ 45dB (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 LDK220PU-R is a low-dropout linear voltage regulator manufactured by STMicroelectronics, designed for battery-powered applications requiring low quiescent current and low noise. It provides a maximum output current of 200 mA with an input voltage range from 2.5 V to 13.2 V. The device features an adjustable output voltage and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a typical dropout voltage of 100 mV at 100 mA load, a typical quiescent current of 55 µA (reducing to less than 1 µA in shutdown mode), and a maximum supply current of 100 µA. It utilizes a 6-DFN package measuring 1.2x1.3 mm.
Feature Summary
- Logic-controlled electronic shutdown function enables total current consumption lower than 1 µA when disabled.
- Compatible with small ceramic output capacitors, specifically stabilizing with a 1 µF capacitor.
- Includes internal protection mechanisms such as short-circuit constant current limiting and thermal protection.
- Features an output discharge function to rapidly reduce output voltage upon shutdown.
Applications
- Battery-powered portable devices
- Low-noise analog circuit power supplies
- Embedded systems requiring efficient standby modes
Procurement Notes
Verify the specific suffix 'PU' confirms the 6-DFN 1.2x1.3mm package and adjustable output configuration. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering quantity matches the available reel or cut-tape options provided by the distributor. Cross-reference the manufacturer part number with official datasheets to avoid confusion with fixed-voltage variants.
Selection Notes
Select this component when an adjustable output voltage is required alongside minimal static power consumption. The wide input voltage range supports various battery chemistries. Ensure the application can accommodate the 6-DFN package footprint. Verify that the load current does not exceed the 200 mA limit under all operating conditions and thermal environments.
Part Context
This component belongs to the LDK220 series of low-dropout regulators. The series offers multiple output configurations, including fixed voltages ranging from 1.2 V to 12 V and adjustable versions. Other packages in the family include SOT23-5L, SOT323-5L, and SOT-89, providing design flexibility for different board space constraints while maintaining similar electrical performance characteristics.
Replacement Considerations
Direct substitutes within the same family include other LDK220 variants with different output voltages or packages, such as LDK220PU27R or LDK220U50R. When replacing, ensure the new part matches the required output voltage type (adjustable vs. fixed) and physical package dimensions to maintain PCB compatibility.
