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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 800MA 8-WSON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.2V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：10 mA
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-WSON (4x4)
- Grade：-
- Qualification：-
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Overview
The LM1117LD-2.5/NOPB is a fixed-output low-dropout linear regulator from Texas Instruments, providing a stable 2.5 V output with a maximum load current of 800 mA. It operates within an input voltage range up to 15 V and features a typical dropout voltage of 1.2 V at full load. The device includes internal current limiting and thermal shutdown protection. It requires a minimum 10 µF tantalum output capacitor for stability and offers line regulation of 1 mV and load regulation of 10 mV.
Feature Summary
- Provides a fixed 2.5 V regulated output suitable for powering digital logic and analog circuits requiring precise voltage levels.
- Integrates comprehensive protection mechanisms including adjustable current limiting and thermal shutdown to safeguard against overload conditions.
- Delivers high ripple rejection performance to minimize noise in sensitive power supply applications.
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC converters
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify the specific suffix LD indicates the WSON package configuration when sourcing this part number. Confirm that the NOPB designation ensures compliance with RoHS standards and absence of lead. Ensure the procurement channel provides original manufacturer documentation to validate authenticity and traceability for production integration.
Selection Notes
Select this component when a fixed 2.5 V rail is required with moderate current demands up to 800 mA. Consider the WSON package for space-constrained designs where surface-mount assembly is preferred over through-hole options. Evaluate thermal dissipation requirements based on the input-to-output voltage differential and expected load current to determine if additional heatsinking is necessary.
Part Context
This device belongs to the LM1117 family of low-dropout regulators known for their robustness and wide availability. The LM1117 series is widely used in general-purpose power management applications. The specific LD variant denotes the compact WSON packaging option, offering a smaller footprint compared to traditional TO-220 or SOT-223 packages while maintaining similar electrical performance characteristics.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative with improved temperature range capabilities. For fixed output configurations in SOT-223 packages, the TLV761 is suggested as a replacement offering enhanced functionality.
