CS9201YDFR8G

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

The CS9201YDFR8G is a micropower 5.0 V, 100 mA low dropout linear regulator featuring ON Semiconductor's proprietary NOCAP technology, which ensures stability without external output capacitors. It provides an output accuracy of ±2% and supports a maximum dropout voltage of 600 mV at full load. The device withstands 74 V peak transients and -15 V reverse voltage, making it suitable for automotive environments. Quiescent current is typically 450 μA at a 100 μA load. It includes fault protection against short circuits, overvoltage, and thermal shutdown.

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

• Proprietary NOCAP technology eliminates the need for external output capacitors while maintaining stability under steady or slow-switching loads.
• Robust fault protection mechanisms include thermal shutdown, overvoltage shutdown, and short-circuit protection to safeguard internal circuitry.
• High transient voltage tolerance up to 74 V and reverse voltage capability of -15 V ensure reliability in harsh automotive electrical environments.

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

• Automotive electronic systems requiring stable 5.0 V power supply
• Micropower applications with steady or slow-switching loads
• Embedded systems needing compact design without external compensation capacitors

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

Verify that the specific ordering suffix matches the required packaging configuration, as standard variants may differ in reel or rail quantities. Confirm that the application environment remains within the specified junction temperature range of -40°C to +150°C. Ensure input voltage conditions do not exceed the maximum DC rating of 36 V or the peak transient limit of 74 V. Validate that load characteristics align with the NOCAP stability requirements for steady-state operation.

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

Select this component when a fixed 5.0 V output is required with minimal external component count. It is ideal for designs prioritizing board space reduction by avoiding output capacitors. Consider its high transient immunity for automotive or industrial applications with noisy power lines. Evaluate thermal dissipation capabilities if operating near maximum current limits, as power dissipation is internally limited.

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

The CS9201 belongs to ON Semiconductor's micropower linear regulator family, specifically designed for low quiescent current applications. It utilizes a lateral PNP output stage compensated internally via NOCAP technology. This series targets cost-sensitive designs where external capacitor elimination reduces bill of materials and assembly complexity. The SO-8 package offers a balance of thermal performance and footprint efficiency for surface-mount applications.

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

Public confirmed substitute part numbers: CS9202 (3.3 V version), CS8221 (traditional LDO with external capacitor requirement).