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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)：5.5V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：5.2V
- 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：6-XFDFN
- Supplier Device Package：6-DFN (1.2x1.3)
- Grade：-
- Qualification：-
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Overview
The STMicroelectronics LDK120PU-R is a low dropout linear regulator delivering up to 200 mA output current. It operates within an input voltage range of 1.9 V to 5.5 V and features ultra-low quiescent current, typically 60 µA, with shutdown consumption below 1 µA. The device provides fixed output voltages including 2.9 V, 3.0 V, and 3.3 V, housed in a compact 6-DFN (1.2 x 1.3 mm) surface-mount package. It includes logic-controlled enable functionality, short-circuit protection, and thermal overload protection.
Feature Summary
- Ultra-low quiescent current for extended battery life
- Logic-controlled electronic shutdown mode
- Internal overcurrent and thermal protection mechanisms
Applications
- Low-power battery-operated portable devices
- Always-on automotive body functions
- Industrial applications requiring stable regulation from unregulated DC rails
Procurement Notes
Verify the specific suffix code (e.g., PU30R, PU33R) against the datasheet to confirm the exact fixed output voltage required for the design. Ensure the ordering part number matches the intended voltage option, as the base series designation covers multiple variants. Confirm package type compatibility during procurement.
Selection Notes
Select this component when a small footprint and low standby current are critical. It is suitable for applications where the input voltage varies significantly but remains within the 5.5 V maximum limit. Verify that the load requirements do not exceed the 200 mA continuous output capability.
Part Context
This component belongs to the LDK120 family of ultra-low dropout regulators designed for harsh environments. It complements other ST power management solutions by offering high precision and stability with ceramic capacitors, fitting into systems requiring efficient power conversion in minimal space.
Replacement Considerations
Check for direct pin-compatible alternatives within the same LDK series or comparable LDOs from other manufacturers if supply constraints exist. Ensure replacement parts match the 6-DFN package dimensions and electrical specifications.
