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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.3V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The LD1117V50C is a positive fixed linear voltage regulator manufactured by STMicroelectronics, delivering a fixed 5V output with an 800mA maximum current capability. It operates within a maximum input voltage of 15V and features a typical dropout voltage of 1.3V at full load. The device incorporates internal overcurrent and thermal overload protection mechanisms to ensure operational safety under fault conditions. Designed for through-hole mounting in TO-220 packages, it supports a wide operating temperature range from -40°C to +125°C, providing stable regulation for various electronic applications.
Feature Summary
- Integrated overcurrent and thermal overload protection circuits
- Fixed 5V output voltage configuration
- Through-hole TO-220 package construction
Applications
- General purpose linear power supplies
- Battery-powered systems requiring stable 5V rails
- Industrial control equipment power management
Procurement Notes
Verify component authenticity against official STMicroelectronics documentation due to the part's end-of-life status. Confirm that the specific TO-220 package variant matches design requirements. Review datasheet specifications for thermal dissipation limits to ensure adequate heat sinking is implemented. Validate compliance with RoHS3 standards as indicated in manufacturer records before final procurement integration.
Selection Notes
Select this component when a robust, high-current 5V linear regulation solution is required for through-hole designs. Consider its 800mA output capacity and wide temperature range suitability for industrial environments. Evaluate thermal performance constraints given the linear topology and potential power dissipation at higher input voltages or loads compared to switching alternatives.
Part Context
This device belongs to the LD1117 series of low-dropout regulators produced by STMicroelectronics. The series offers various fixed voltage outputs and packaging options including SOT-223 and DPAK. The LD1117V50C specifically denotes the 5V fixed output version in a TO-220 through-hole package, distinct from surface-mount variants within the same family.
Replacement Considerations
The LD1117V50C has been officially declared End-of-Life (EOL) by the manufacturer. Designers should consult official replacement guides or contact STMicroelectronics directly for qualified alternative components suitable for legacy system maintenance.
