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Product Detailed Parameters
- Description：IC REG LINEAR 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)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：180 µA
- Current - Supply (Max)：35 mA
- PSRR：64dB (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 LD29080DT50R is a fixed-output low-dropout linear voltage regulator from STMicroelectronics, providing a stable 5.0V output with a maximum current capability of 800mA. It operates within an input voltage range of 2.5V to 13V and features a typical dropout voltage of 400mV at full load. The device incorporates internal current limiting and thermal shutdown protection for robust operation. Designed for surface-mount assembly in DPAK packages, it supports an extended operating temperature range from -40°C to +125°C, ensuring reliability in demanding electronic environments.
Feature Summary
- Guarantees up to 800mA output current with high accuracy regulation
- Features very low dropout voltage suitable for battery-powered systems
- Includes logic-controlled electronic shutdown for power management
- Provides internal current and thermal limit protection
Applications
- Post-regulation for switching power supplies
- Series power supply for monitors and TVs
- Battery-powered portable systems
- Computer system power distribution
Procurement Notes
Verify the specific suffix 'DT50R' to confirm the 5.0V fixed output voltage and DPAK package configuration. Ensure compatibility with the required 800mA load current and input voltage range up to 13V. Check for RoHS compliance status and lead-free packaging requirements during sourcing. Confirm availability as this component may have lifecycle variations compared to other outputs in the LD29080 series.
Selection Notes
Select this regulator when a stable 5.0V rail is needed for medium-current loads requiring low noise and minimal voltage drop. It is ideal for applications where input voltage varies close to the output level. Consider the DPAK package for thermal performance if higher currents are sustained. Verify that the application does not require adjustable output or alternative package types like PPAK.
Part Context
This component belongs to the LD29080 series of ultra-low-dropout regulators designed for medium current applications. The series offers both fixed and adjustable output options with high precision. The DT suffix indicates the DPAK surface-mount package variant, while the 50R specifies the 5.0V fixed output voltage. This family is engineered for efficiency in portable and industrial electronics.
Replacement Considerations
Direct substitutes include other LD29080 variants with different fixed voltages (e.g., LD29080DT33R for 3.3V) if voltage levels differ. Cross-reference with LD29080PTxxR series for PPAK package alternatives. Ensure any replacement maintains the 800mA current rating and similar dropout characteristics.
