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)：14V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：180 µA
- Current - Supply (Max)：80 mA
- PSRR：67dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- 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 LD29150DT33R is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 3.3 V output with a maximum continuous current of 1.5 A. The device operates within an input voltage range of 3 V to 14 V and features a typical dropout voltage of 400 mV at full load, with a maximum specified dropout of 700 mV at 1.5 A. It utilizes a TO-252-3 (DPAK) surface-mount package and supports operation across an extended temperature range from -40 °C to +125 °C.
Feature Summary
- Guarantees high output current capability up to 1.5 A for demanding power loads.
- Features very low dropout voltage characteristics suitable for battery-powered systems.
- Includes internal protection mechanisms against overcurrent conditions and excessive thermal stress.
Applications
- Post-regulation stages in switching power supply architectures
- Series power supplies for monitors and television sets
- Computer system logic and peripheral power distribution
Procurement Notes
Verify the specific suffix DT33R confirms the 3.3 V fixed output and DPAK package configuration. Confirm RoHS compliance status and check for active manufacturing status as some variants may be obsolete. Ensure the supplier provides official datasheets matching the STMicroelectronics LD29150 series specifications before finalizing procurement.
Selection Notes
Select this component when a fixed 3.3 V rail is required with high current capacity. The DPAK package offers a balance between thermal performance and board space. Consider the adjustable LD29150PTR if variable output voltages are needed, or other fixed variants like LD29150DT25R for different voltage levels within the same package family.
Part Context
This part belongs to the LD29150 series of high-current, high-accuracy low-dropout regulators. The series is designed for applications requiring efficient power management with minimal heat dissipation. The DT suffix indicates the DPAK surface-mount packaging, distinguishing it from through-hole or PPAK variants within the same functional family.
Replacement Considerations
LD29150P2T33R is a documented similar alternative offering identical electrical specifications but housed in a P2PAK package. Verify pinout compatibility and thermal pad requirements when substituting packages.
