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Product Detailed Parameters
- Description：IC REG LINEAR 1.5V 800MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：13V
- Voltage - Output (Min/Fixed)：1.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：800mA
- Current - Quiescent (Iq)：180 µA
- Current - Supply (Max)：35 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：-
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Overview
The LD29080DT15R is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 1.5V output with a maximum current capacity of 800mA. The device operates within an input voltage range of 2.5V to 13V and features a typical dropout voltage of 400mV at full load. It utilizes a DPAK (TO-252-3) surface-mount package. Key electrical specifications include a quiescent current of 180µA, power supply rejection ratio of 75dB at 120Hz, and line/load regulation of 0.5%/1%. The unit supports an operating temperature range from -40°C to +125°C.
Feature Summary
- Integrated electronic shutdown controlled by logic signals for power management
- Built-in protection against overcurrent conditions and thermal overload
- Capable of maintaining stability with standard ceramic output capacitors
Applications
- Post-regulation stages in switching power supplies
- Power supply circuits for computer systems
- Battery-powered electronic devices requiring efficient voltage conversion
Procurement Notes
Verify the specific suffix 'DT' confirms the DPAK package and tape-and-reel packaging configuration before ordering. Confirm that the fixed 1.5V output aligns with system requirements, as other variants exist within the LD29080 family. Check for RoHS compliance status and ensure the component meets environmental regulations for the target market. Validate lead times as availability may vary due to production cycles.
Selection Notes
Select this component when a fixed 1.5V rail is required with up to 800mA load capability. It is suitable for applications prioritizing low dropout performance over ultra-low quiescent current. Consider alternative packages like PPAK if higher thermal dissipation is needed. Ensure input voltage remains above 2.5V and below 13V to maintain proper regulation and safety margins.
Part Context
This part belongs to the LD29080 series of medium-current LDO regulators. The series offers both fixed and adjustable output options with high accuracy. While the LD29080 handles up to 800mA, the related LD29150 series provides higher current capacity up to 1.5A. Both families share similar architectural features including low dropout characteristics and internal protection mechanisms.
Replacement Considerations
Direct substitutes include other LD29080 variants with different fixed output voltages such as LD29080DT25R or LD29080DT33R, provided the voltage requirement changes. For higher current needs, the LD29150 series serves as a functional upgrade. Verify pin compatibility and thermal performance when substituting across package types.
