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 LINEAR 3.3V 1.5A DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.4V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：2.5 mA
- Current - Supply (Max)：-
- PSRR：65dB ~ 55dB (120Hz ~ 1kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
Download product information
Overview
The LD39150DT33-R is a positive fixed linear regulator from STMicroelectronics, delivering a stable 3.3V output at up to 1.5A. It operates within an input voltage range of 2.5V to 6V and features a maximum dropout voltage of 0.4V at full load. The device incorporates internal overcurrent and thermal protection mechanisms. It utilizes a DPAK (TO-252-3) surface-mount package and supports operation across a junction temperature range of -40°C to 125°C.
Feature Summary
- Ultra-low dropout voltage performance optimized for low-voltage microprocessor and memory applications
- Logic-controlled electronic shutdown function enabling deep sleep modes with minimal current consumption
- Internal circuitry provides comprehensive protection against short circuits and excessive thermal conditions
Applications
- Low voltage microprocessor power supply systems
- Memory module regulation in portable devices
- Battery-powered consumer electronics requiring efficient power management
Procurement Notes
Verify the specific suffix 'R' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status matches project requirements. Ensure the DPAK footprint aligns with PCB design constraints. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit products. Validate that the fixed 3.3V output meets system voltage specifications before integration.
Selection Notes
Select this component for designs requiring high current capability with minimal voltage drop under heavy loads. The BiCMOS process ensures low quiescent current independent of the output load, enhancing efficiency. Consider the DPAK package for adequate thermal dissipation during continuous 1.5A operation. Verify input voltage stability remains within the 6V maximum limit to prevent device damage.
Part Context
This part belongs to the LD39150 family of ultra-low drop BiCMOS voltage regulators. The series offers various fixed and adjustable output voltages, including 1.8V, 2.5V, and 3.3V options. Other packages in the family include PPAK and DFN6, providing flexibility for different board space and thermal requirements while maintaining consistent electrical performance characteristics.
Replacement Considerations
Direct substitutes within the same family include LD39150DT25-R for 2.5V output or LD39150DTxx-R for other fixed voltages. Ensure any replacement maintains the DPAK package and 1.5A current rating. Verify pinout compatibility if swapping between different output voltage variants in existing designs.
