CS8361YDWFR16G

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

The CS8361YDWFR16G is a micropower dual linear voltage regulator in an SO-16L package. It provides a fixed 5.0 V standby output capable of 100 mA with ±2% accuracy and a tracking output adjustable from 5.0 V to 20 V at 250 mA. The device features low dropout voltage, active RESET logic, and ENABLE control for the tracking rail. It operates within a supply voltage range of 6.0 V to 26 V and includes comprehensive protection against thermal shutdown, short circuits, overvoltage, reverse battery, and 60 V load dump events.

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

• Dual regulated outputs providing independent standby and tracking power rails
• Active RESET function monitors standby output stability for microprocessor systems
• ENABLE input controls tracking regulator state with hysteresis to prevent spurious activity
• Robust protection suite including thermal shutdown, short circuit, and high-voltage transient tolerance

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

• Automotive microprocessor power supplies
• Battery-powered embedded systems
• Industrial control units requiring stable voltage rails
• Systems needing synchronized power-up sequencing via RESET

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

Verify the complete part number CS8361YDWFR16G matches the required SO-16L package and tape-and-reel quantity. Confirm Pb-free status and RoHS compliance requirements align with project specifications. Ensure the ordering suffix corresponds to the correct shipping configuration before finalizing procurement documentation.

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

Select this component when a dual-output regulator with precise standby accuracy and programmable tracking voltage is required. The SO-16L package offers internal fused leads for enhanced safety. Consider the quiescent current and thermal dissipation capabilities relative to the expected load conditions and ambient temperature range during system design.

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

This device belongs to onsemi's SMART REGULATOR family, designed for robust performance in demanding environments. The CS8361 integrates multiple functions into a single IC, reducing board space and component count compared to discrete solutions. It is engineered for reliability in automotive and industrial applications where voltage stability and protection are critical.

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

Direct substitutes include CS8361YDWF16G (rail pack) and CS8361YDPS7G (D2PAK-7 package). Verify pin compatibility and thermal characteristics when transitioning between package types or shipping formats.

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

How is the tracking output voltage determined?

The tracking output voltage is set using an external resistor divider connected to the Adj lead, allowing adjustment from 5.0 V up to 20 V based on the standby output reference.

What triggers the RESET output signal?

The RESET output goes low whenever the standby output voltage falls out of regulation, ensuring reliable operation of downstream microprocessor-based systems.

Is the ENABLE function active high or low?

The ENABLE function is active LOW; applying a voltage below the threshold turns on the tracking output, while exceeding the threshold turns it off.