L4892CV

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The L4892CV is a very low drop voltage regulator from the L4800 series, manufactured by STMicroelectronics. It provides a fixed 12V output with a maximum output current of 300mA and features comprehensive on-chip protection including reverse polarity protection, overvoltage protection up to ±60V, foldback current limiting, and thermal shutdown. The device operates within an ambient temperature range of -40°C to +125°C and is housed in a TO-220 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Very low dropout voltage typically 0.4V at full rated current
• Integrated protection against load dump, field decay transients, polarity reversal, and overheating
• Foldback current limiter protects against load short circuits
• Low quiescent current suitable for battery backup and standby applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Automotive 5V logic supplies
• Battery backup systems
• Standby power applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific ordering suffix matches the required package type, as the datasheet lists both TO-220 and SOT-82 variants. Confirm that the application environment does not exceed the absolute maximum ratings for input voltage or junction temperature. Ensure appropriate output capacitance is selected to maintain stability across the operating temperature range.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable 12V rail is needed with minimal voltage drop under high load conditions. Consider the TO-220 package for better thermal dissipation compared to smaller packages. Evaluate the need for integrated transient protection features to simplify circuit design in automotive or industrial environments.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The L4892CV belongs to the L4800 series of very low drop voltage regulators. This family includes devices offering various fixed output voltages such as 5V, 8V, 8.5V, 9.2V, 10V, and 12V. All members share common characteristics like low quiescent current and robust protection mechanisms designed for demanding applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Other members of the L4800 series, such as L4805, L4808, L4885, L4810, and L4812, offer different fixed output voltages but share similar functional characteristics and protection features.