L6933H1.2

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

The L6933H1.2 is a high-performance ultra-low-dropout (ULDO) linear regulator manufactured by STMicroelectronics, designed to support output currents up to 2A with an input voltage range of 2V to 14V. It features an adjustable output voltage from 1.2V to 5V with 1% regulation accuracy and includes a soft-start function to prevent startup overshoot. The device incorporates short-circuit protection and thermal shutdown for enhanced reliability.

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

• Adjustable output voltage ranging from 1.2V to 5V with 1% regulation accuracy
• Integrated soft-start capability to control output voltage ramp-up and avoid overshoot
• Built-in short-circuit protection and thermal shutdown limiting internal temperature at 150°C

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

• Motherboards and mobile PC systems
• Hand-held instruments
• PCMCIA Cards
• Processors I/O supply
• Chipset and RAM supply

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

Verify the specific package variant required, as the L6933H1.2 is available in tube packaging while the L6933H1.2TR utilizes tape and reel. Confirm that the design accommodates the HSOP8 package dimensions and ensure compliance with RoHS3 standards. Review the datasheet for absolute maximum ratings to validate operating conditions against the specified limits.

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

Select this component when a low-noise, high-current linear regulator is needed for battery-powered or DC-DC converted systems. The ULDO architecture minimizes power dissipation compared to standard LDOs. Ensure the application requires an adjustable output within the 1.2V to 5V range and benefits from the integrated soft-start feature for controlled power sequencing.

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

The L6933H1.2 belongs to the L6933 family of ultra-low-dropout linear regulators from STMicroelectronics. This series is engineered for applications requiring efficient power management with minimal external components. The device integrates an internal N-channel MOSFET to reduce footprint and improve efficiency in space-constrained designs.

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

L6933H1.2TR serves as the tape-and-reel equivalent of the L6933H1.2 tube version.