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Product Detailed Parameters
- Description：IC REG LINEAR 1.5V 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)：1.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1.5A
- Current - Quiescent (Iq)：180 µA
- Current - Supply (Max)：80 mA
- PSRR：75dB (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 LD29150DT15R is a positive fixed linear low-dropout voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 1.5V with a maximum continuous output current of 1.5A. The device operates within an input voltage range up to 14V and features a typical dropout voltage of 400mV at full load. Key electrical specifications include a quiescent current of 180µA, a supply current of 80mA maximum, and a power supply rejection ratio (PSRR) of 75dB at 120Hz. It is housed in a DPAK surface-mount package.
Feature Summary
- Provides high accuracy fixed output voltage regulation suitable for sensitive digital logic circuits.
- Incorporates internal thermal overload protection and current limiting to safeguard against short circuits and overheating.
- Features very low ground current consumption to minimize power loss during operation.
Applications
- Post-regulation stages in switching power supplies
- Series power supplies for monitors and televisions
- Battery-powered electronic systems requiring efficient voltage management
Procurement Notes
Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm that the DPAK package dimensions match the target PCB footprint. Ensure input voltage does not exceed the 14V absolute maximum rating to prevent device damage. Check for RoHS3 compliance if environmental regulations apply to the final assembly.
Selection Notes
Select this component when a stable 1.5V rail is required for loads up to 1.5A. The DPAK package offers adequate thermal dissipation for moderate power applications. Consider the 14V input limit; higher input voltages require alternative regulators from the same series with different suffixes or packages.
Part Context
This device belongs to the LD29150 series of high-current, low-dropout regulators. The series includes adjustable versions and variants with different output voltages and packages, such as the PPAK. The DT15R designation specifically indicates the 1.5V fixed output and DPAK surface-mount packaging configuration.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with any legacy components using similar pinouts or electrical characteristics.
