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Product Detailed Parameters
- Description：IC REG LIN 1V 300MA 4-FLIPCHIP
- 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)：-
- Current - Output：300mA
- Current - Quiescent (Iq)：45 µA
- Current - Supply (Max)：-
- PSRR：70dB ~ 65dB (1kHz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Soft Start
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：4-UFBGA, FCBGA
- Supplier Device Package：4-FlipChip (.69x.69)
- Grade：-
- Qualification：-
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Overview
The LD39130SJ10R is a low-dropout linear regulator from STMicroelectronics, providing a fixed 1 V output with a maximum current of 300 mA. It operates within an input voltage range of 1.4 V to 5.5 V and features a typical dropout voltage of 300 mV at full load. The device draws a quiescent current of 45 uA and offers a power supply rejection ratio of 70 dB. It includes internal protections against overcurrent and thermal overload, along with soft-start functionality. The component is housed in a FlipChip-4 package and supports operation temperatures from -40 C to +125 C.
Feature Summary
- Ultra-low dropout voltage design for efficient power management
- Integrated enable logic control for shutdown mode operation
- Built-in short-circuit constant current limiting and thermal protection
- Soft-start feature to minimize inrush current during startup
Applications
- Low-power battery-powered portable devices
- Embedded systems requiring stable 1 V rail
- Noise-sensitive analog circuit power supplies
- Mobile communication modules
Procurement Notes
Verify the specific suffix 'SJ10R' corresponds to the 1 V fixed output variant when sourcing. Confirm the FlipChip-4 package dimensions match your PCB footprint requirements. Ensure compatibility with ceramic output capacitors as specified in the datasheet. Check RoHS compliance status for environmental regulations. Validate that the operating temperature range meets your application's thermal constraints.
Selection Notes
Select this component when a fixed 1 V output is required with minimal voltage drop. Consider its low quiescent current for battery life optimization. Evaluate the FlipChip-4 package for space-constrained designs. Compare PSRR performance against noise requirements of downstream circuits. Verify input voltage stability stays within the 1.4 V to 5.5 V operational window.
Part Context
This part belongs to the LD39130S series of low-dropout regulators from STMicroelectronics. The series is designed for applications demanding high efficiency and low noise. Other variants in the family offer different fixed output voltages while sharing similar electrical characteristics and packaging options. The series targets portable electronics and embedded systems requiring reliable power regulation.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications before considering any alternative components.
