ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LIN 1.4V 150MA 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)：1.4V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：150mA
- Current - Quiescent (Iq)：50 µA
- Current - Supply (Max)：70 µA
- PSRR：74dB ~ 67dB (1kHz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：4-UFBGA, FCBGA
- Supplier Device Package：4-FlipChip (0.79x0.79)
- Grade：-
- Qualification：-
Download product information
Overview
The LD39115J14R is a low-dropout linear voltage regulator from STMicroelectronics, providing a fixed 1.4 V output with a maximum load current of 150 mA. It operates within an input voltage range of 1.5 V to 5.5 V and features a typical dropout voltage of 80 mV at 100 mA. The device exhibits very low quiescent current (20 μA typ. no-load) and low noise (33 μV RMS). It includes logic-controlled shutdown, short-circuit protection, and thermal limiting, housed in a compact Flip-Chip 4 bumps package.
Feature Summary
- Ultra-low dropout voltage operation for efficient power management
- Logic-controlled electronic shutdown for extended battery life
- Integrated short-circuit constant current limiting and thermal protection
Applications
- Low-power battery-powered portable devices
- RF and sensor supply regulation
- Embedded systems requiring stable low-noise voltage rails
Procurement Notes
Verify the specific suffix '14R' confirms the 1.4 V fixed output voltage and reel packaging configuration. Confirm the NRND status indicates end-of-life or non-recommended-new-designation status before finalizing design-in decisions. Ensure compatibility with the required flip-chip footprint during PCB layout.
Selection Notes
Select this component when a fixed 1.4 V rail is required with minimal board space constraints. The ultra-low noise specification makes it suitable for sensitive analog circuits. Verify that the input voltage remains above the minimum threshold to maintain regulation under all load conditions.
Part Context
This part belongs to the LD39115J family of low-quiescent-current regulators. The base model offers adjustable or fixed outputs, while the '14R' suffix specifically denotes the 1.4 V fixed output variant in reel packaging. It shares the same core architecture and protection features as other members of the series.
Replacement Considerations
Direct substitutes may include other LD39115 variants with different fixed voltages if the system allows voltage adjustment. Cross-reference pinouts and thermal characteristics carefully when considering alternative LDOs from different manufacturers.
