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Product Detailed Parameters
- Description：IC REG LINEAR 9V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：9V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1.5 mA
- Current - Supply (Max)：12 mA
- PSRR：71dB ~ 56dB (120Hz ~ 10kHz)
- 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 LF90CDT-TR is a positive fixed voltage linear regulator from the LF90C series, manufactured by STMicroelectronics. It provides a stable 9.0V output with a maximum continuous current of 500mA. The device operates with an input voltage range up to 16V and features a very low dropout voltage characteristic. Designed for surface-mount applications, it utilizes a D-Pak (TO-252) package. Key electrical specifications include a maximum input voltage of 16V, an output current capability of 500mA, and a fixed output voltage of 9.0V.
Feature Summary
- Very low dropout voltage operation for efficient power management
- Integrated inhibit control functionality
- Fixed 9.0V output voltage regulation
- High current capability of 500mA
Applications
- Battery-powered equipment requiring efficient voltage regulation
- Portable consumer electronics devices
- General-purpose power supply circuits
- Embedded systems with strict voltage stability requirements
Procurement Notes
Verify the exact suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm the D-Pak package type matches your PCB footprint requirements. Ensure the 9.0V fixed output aligns with your system design needs. Check for any specific thermal management requirements associated with the TO-252 package in your application environment.
Selection Notes
Select this component when a fixed 9V output at 500mA is required with minimal dropout voltage. Consider the D-Pak package for surface-mount assembly constraints. Evaluate thermal dissipation capabilities based on the input-output voltage differential and load current. Compare against other LDO regulators if variable output or higher current ratings are necessary.
Part Context
This part belongs to the LF90C family of very low drop voltage regulators with inhibit. These regulators are designed for applications where battery life is critical due to their low quiescent current and dropout characteristics. The family offers various fixed output voltages to suit different electronic circuit requirements.
Replacement Considerations
The LF25CDT-TR is a comparable fixed LDO regulator from the same manufacturer, offering similar performance characteristics but with a different fixed output voltage. Verify pin compatibility and thermal requirements before substitution.
