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LD39030SJ12R

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LD39030SJ12R

IC REG LIN 1.2V 300MA 4FLIPCHIP

Manufacturer: STMicroelectronics

Categories: Linear, Low Drop Out (LDO) Regulators

Quality Control: Learn More

STMicroelectronics LD39030SJ12R is a linear voltage regulator with a fixed 1.2V output and a 300mA output current capability. This device features a low quiescent current of 50µA and a supply current of 85µA, making it suitable for power-sensitive applications. The regulator offers robust protection mechanisms including overcurrent, overtemperature, and soft start. With a high Power Supply Rejection Ratio (PSRR) of 62dB at 1kHz to 10kHz, it effectively filters noise from the input supply. The LD39030SJ12R operates from an input voltage range up to 5.5V and has a maximum dropout voltage of 0.3V at 300mA. Packaged in a compact 4-Flipchip (0.79x0.79) format for surface mounting, it is supplied on a Tape & Reel (TR). This component finds application in consumer electronics, portable devices, and automotive systems.

Additional Information

Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Datasheet:
Technical Details:
PackagingTape & Reel (TR)
Package / Case4-UFBGA, FCBGA
Output TypeFixed
Mounting TypeSurface Mount
Current - Output300mA
Operating Temperature-40°C ~ 125°C
Output ConfigurationPositive
Current - Quiescent (Iq)50 µA
Voltage - Input (Max)5.5V
Number of Regulators1
Supplier Device Package4-Flipchip (0.79x0.79)
Voltage - Output (Max)-
Voltage - Output (Min/Fixed)1.2V
Control FeaturesEnable
PSRR62dB (1kHz ~ 10kHz)
Voltage Dropout (Max)0.3V @ 300mA
Protection FeaturesOver Current, Over Temperature, Soft Start
Current - Supply (Max)85 µA

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STMicroelectronics FAQs

STMicroelectronics manufactures a broad range of semiconductor components, with a strong focus on microcontrollers, power electronics, and analog technologies.

STMicroelectronics’ core components include:

  • Microcontrollers (MCUs) and microprocessors (MPUs)
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STMicroelectronics specializes in energy-efficient, high-performance solutions for embedded systems and power management applications.

STMicroelectronics serves industries that require energy efficiency, embedded control, and advanced sensing technologies.

STMicroelectronics’ key industries include:

These industries rely on STMicroelectronics for power efficiency, system integration, and reliable semiconductor performance.

STMicroelectronics is known for microcontrollers, power electronics, and sensor technologies.

Key STMicroelectronics product lines include:

  • STM32 series - ARM-based microcontrollers for embedded applications
  • STM8 series - 8-bit microcontrollers for cost-sensitive designs
  • Stellar automotive MCUs - next-generation microcontrollers for vehicle architectures
  • STSPIN series - motor drivers and motion control ICs
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  • Automotive SiC portfolio - silicon carbide devices for EV power systems
  • ST25 series - NFC/RFID solutions for contactless applications
  • STGAP3S - next-generation gate driver for power electronics
Integrated Circuit FAQs

An integrated circuit (IC) is a semiconductor chip that contains transistors, resistors, capacitors, and other electronic components on a single silicon substrate. ICs are the foundation of modern electronics and power devices such as smartphones, computers, automotive systems, and industrial equipment.

Integrated circuits work by routing electrical signals through microscopic semiconductor components fabricated onto a silicon chip. Depending on the design, ICs can process, amplify, store, or control electronic data.

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