TPS76850QDR

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

The TPS76850QDR is a fixed-output low-dropout voltage regulator providing a nominal 5 V output with a maximum continuous current of 1 A. It operates within an input voltage range of 2.7 V to 10 V and maintains a typical dropout voltage of 230 mV at full load. The device features ultralow quiescent current, typically 85 μA, which remains constant across the entire load range due to its PMOS pass element. It includes an open-drain power-good indicator and supports operation from -40 °C to +125 °C in an 8-pin SOIC package.

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

• Utilizes a PMOS pass transistor for voltage-driven control, ensuring low quiescent current that remains independent of the output load.
• Provides fast transient response and maintains stability when used with standard 10 μF output capacitors.
• Integrates an open-drain power-good (PG) signal to monitor regulated output status relative to nominal values.
• Includes internal thermal shutdown and current limiting protection to safeguard against over-temperature and overload conditions.

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

• Battery-powered systems requiring extended operational life through minimal ground current consumption.
• Portable electronics needing stable regulation during rapid load transients.
• Applications utilizing low-battery indicators driven by the power-good output signal.
• Systems requiring shutdown modes to reduce standby current consumption below 1 μA.

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

Verify the specific ordering suffix to confirm the package type and reel quantity, as these define physical compatibility and handling requirements. Ensure the component meets RoHS standards if required by your assembly process. Confirm availability status directly with authorized distributors, as production lifecycles may change. Cross-reference the datasheet revision date to ensure all electrical characteristics align with your design specifications before finalizing procurement orders.

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

Select this regulator when a fixed 5 V output is required with high efficiency under varying loads. The PMOS architecture makes it suitable for battery applications where minimizing quiescent current is critical. Ensure the application utilizes output capacitors with appropriate equivalent series resistance to maintain loop stability. Verify that the input voltage range accommodates the minimum dropout requirements for your specific operating conditions.

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

This component belongs to the TPS768xxQ family of fast transient response low-dropout regulators. The family offers various fixed output voltages ranging from 1.5 V to 5.0 V, along with adjustable options. All members share the same core PMOS architecture, protection features, and packaging options, allowing for consistent design practices across different voltage rails within a single system.

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

TPS76850QD