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Product Detailed Parameters
- Description：IC REG LINEAR 1V 300MA 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)：5.5V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.4V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：120 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 LDK130PU10R is a fixed-output linear low-dropout regulator providing a stable 1V output with a maximum current capacity of 300mA. It operates within an input voltage range of 1.9V to 5.5V and features a typical dropout voltage of 100mV at 100mA load. The device exhibits a quiescent current of 60µA and supports power supply currents up to 120µA. It includes enable logic control, achieving shutdown consumption below 1µA. Protection mechanisms include overcurrent limiting and thermal shutdown. The component is housed in a compact 6-DFN (1.2x1.3mm) package and functions reliably across a temperature range of -40°C to +125°C.
Feature Summary
- Ultra-low noise performance suitable for sensitive analog circuits
- Logic-controlled electronic shutdown for extended battery life
- Internal short-circuit constant current limiting and thermal protection
- Stabilized operation using only small ceramic capacitors
Applications
- Low-power battery-powered portable devices
- Post-regulation stages for microprocessor systems
- Automotive electronics requiring AEC-Q100 qualified components
- RF modules requiring clean power supplies
Procurement Notes
Verify the specific suffix PU10R confirms the 1V fixed output voltage and DFN6 packaging configuration. Ensure compatibility with RoHS3 standards and check moisture sensitivity level requirements during storage. Confirm that the 6-DFN footprint matches the target PCB design constraints before finalizing procurement orders.
Selection Notes
Select this regulator when precise 1V regulation is required with minimal noise interference. It is optimal for applications demanding high efficiency under light loads due to low quiescent current. Consider the 300mA limit for load requirements and ensure input voltage remains within the specified 1.9V to 5.5V window for proper dropout performance.
Part Context
This component belongs to the LDK130 family of low-dropout regulators designed for automotive and industrial applications. The series offers various fixed output voltages and packages, including SOT23-5L and DFN6. The LDK130PU10R specifically addresses needs for compact, low-noise power solutions in space-constrained environments requiring high reliability.
Replacement Considerations
Direct substitutes within the same family include other LDK130 variants with different output voltages or packages, such as LDK130PU30R for 3V output. Verify pinout compatibility and thermal characteristics when cross-referencing with other manufacturers' LDOs offering similar 300mA capabilities.
