L6932D1.8

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

The L6932D1.8 is a high-performance Ultra Low Drop Output (ULDO) linear regulator manufactured by STMicroelectronics, designed to deliver up to 2A of output current. It features a fixed 1.8V output voltage with a regulation accuracy of 1%. The device operates within an input voltage range of 2V to 14V and incorporates an internal N-channel MOSFET with a maximum drain-source on-resistance of 200mΩ. Key electrical specifications include a quiescent current of 200µA at any load, a short-circuit current limit of 2.5A, and a ripple rejection of 75dB at 120Hz. It provides thermal shutdown protection and includes Enable and Power Good control functions.

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

• Ultra-low dropout architecture utilizing an internal N-channel MOSFET for efficient power conversion in portable applications.
• Integrated safety mechanisms including thermal shutdown and short-circuit current limiting to protect the device under fault conditions.
• Dual control functionality providing both Enable pin management and Power Good status indication for system monitoring.

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

• Motherboards
• Mobile PC systems
• Hand-held instruments
• PCMCIA cards
• Processors I/O supply

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

Verify the specific ordering suffix required for your manufacturing process, as the base part number L6932D1.8 corresponds to the SO-8 package while L6932D1.8TR indicates tape and reel packaging. Confirm that the component meets RoHS3 compliance standards if applicable to your assembly requirements. Ensure compatibility with the specified operating temperature range of -25°C to 125°C for your intended environment.

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

Select this regulator when a fixed 1.8V output is required with high current capability up to 2A. Consider the 200mΩ Rdson for minimizing voltage drop and heat generation compared to P-channel alternatives. Evaluate the thermal impedance characteristics if designing for continuous high-current loads, as the SO-8 package requires adequate PCB copper area for effective heat dissipation during operation.

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

The L6932 series belongs to STMicroelectronics' portfolio of high-performance ULDO linear regulators. This family offers various fixed voltage options (1.5V, 1.8V, 2.5V) and an adjustable version (1.2V to 5V). All variants share the same SO-8 package and core protection features, differing primarily in their internal reference voltages and output settings to suit diverse digital logic and memory supply needs.

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

Direct substitutes within the same family include L6932D1.5 and L6932D2.5 for different fixed voltage outputs. For adjustable applications, the L6932D1.2 variant can be configured using external resistors. Verify pinout compatibility and thermal performance when replacing with other manufacturers' 2A LDOs, as package dimensions and thermal resistance values may vary.