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Product Detailed Parameters
- Description：IC REG LINEAR 9V 500MA TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk,Tube
- 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：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
Download product information
Overview
The LF90CV is a very low drop voltage regulator with inhibit functionality, manufactured by STMicroelectronics. It provides a fixed positive output of 9V with a maximum output current of 500mA. The device features a line regulation of 45mV and load regulation of 45mV. It operates within an input voltage range up to 16V and supports through-hole installation in a TO-220-3 package. The component has a static current (Iq) of 1.5mA and an input bias current of 700uA. It is designed for applications requiring stable linear voltage regulation with power-down capabilities.
Feature Summary
- Fixed 9V output eliminates need for external resistor networks
- Integrated inhibit function for power management control
- Very low dropout voltage characteristics for efficiency
- Through-hole TO-220-3 package for robust mounting
Applications
- Microcontroller power supply circuits
- Sensor module voltage regulation
- Operational amplifier biasing
- General purpose linear voltage regulation
Procurement Notes
Verify the specific datasheet revision and inhibit pin configuration before integration. Confirm that the TO-220-3 package dimensions match your PCB footprint requirements. Ensure input voltage does not exceed the 16V maximum rating under all operating conditions. Check thermal dissipation needs given the 500mA output capability in the selected package.
Selection Notes
Choose this component when a fixed 9V output is required with inhibit control. Consider the 500mA current limit for load requirements. The TO-220-3 package suits high-power through-hole designs. Evaluate thermal performance if operating near maximum current or temperature limits.
Part Context
The LF90CV belongs to STMicroelectronics' LFxx series of very low drop voltage regulators. This family includes variants with different output voltages and current ratings. The LF90CV specifically offers 9V output at 500mA with inhibit functionality, distinguishing it from standard LDOs without power-down features.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative components.
