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Product Detailed Parameters
- Description：IC REG LINEAR 3V 800MA SOT-223
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.2V @ 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：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223
- Grade：-
- Qualification：-
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Overview
The LD1117S30TR is a fixed-output linear voltage regulator manufactured by STMicroelectronics, belonging to the LD1117 series. It provides a fixed output voltage of 3.0V with a maximum input voltage rating of 15V. The device utilizes a surface-mount SOT-223 package featuring four pins and measures 6.5mm in length, 3.5mm in width, and 1.8mm in height. It operates at a maximum junction temperature of 150°C and draws a static current of 5mA.
Feature Summary
- Provides a stable fixed output voltage for power supply regulation
- Designed for surface-mount installation on printed circuit boards
- Operates reliably within an extended high-temperature range up to 150°C
Applications
- General-purpose DC-DC conversion and power management circuits
- Battery-powered equipment requiring efficient voltage regulation
- Embedded systems utilizing low-dropout regulation
Procurement Notes
Verify the specific suffix 'TR' indicates tape-and-reel packaging configuration when sourcing components. Confirm that the 3.0V output variant matches the design requirements, as the LD1117 family offers multiple fixed voltage options. Ensure compatibility with the SOT-223 footprint during PCB layout verification.
Selection Notes
Select this component when a fixed 3.0V output is required from an input source not exceeding 15V. The SOT-223 package is suitable for applications prioritizing compact surface-mount assembly over through-hole mounting. Consider the 5mA static current consumption relative to overall system power budget constraints.
Part Context
This part belongs to the LD1117 series of adjustable and fixed positive voltage regulators known for their low dropout characteristics. The manufacturer, STMicroelectronics, produces this line for general electronic applications requiring reliable linear regulation in a compact form factor.
Replacement Considerations
Compatible substitutes include other LD1117 variants with different fixed output voltages (e.g., LD1117S33TR for 3.3V) or equivalent regulators from other manufacturers offering identical SOT-223 pinouts and 15V input ratings.
