CS8391YDPR5

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

The CS8391YDPR5 is a fixed positive dual-output linear low-dropout (LDO) regulator manufactured by onsemi. It features two independent voltage outputs, designated as Output 1 and Output 2, with nominal values of 5.1V and 5V respectively. The device utilizes a D2PAK-5 surface-mount package. Electrical specifications include a maximum absolute input voltage of 45V, with an operating range from 6V to 26V. Output current capabilities are rated at 0.25A for the first output and 0.1A for the second. The unit exhibits a typical dropout voltage of 0.4V and maintains line and load regulation within 0.05%. It operates across a temperature range of -40°C to 125°C.

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

• Dual-output architecture providing independent regulated voltages from a single component
• Low dropout performance ensuring efficient regulation under varying input conditions
• Robust thermal design supporting operation in high-temperature environments up to 125°C

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

• Power supply circuits requiring dual voltage rails
• Embedded systems needing stable 5V logic and auxiliary power
• Industrial control modules with bipolar power requirements

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

Verify the manufacturer designation carefully, as the component data indicates conflicting origin information between onsemi and Cherry Semi. Confirm RoHS compliance status, as documentation lists it as non-compliant. Ensure the specific D2PAK-5 package variant matches the target PCB footprint. Cross-reference the part number suffix YDP to confirm pinout compatibility before integration into new designs.

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

Select this component when a dual-output LDO solution is required for space-constrained applications. The D2PAK-5 package offers a balance between thermal dissipation and board area efficiency. Consider the 0.25A and 0.1A output limits to ensure adequate headroom for the intended load currents. Verify that the input voltage range aligns with the system's power source constraints.

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

This device belongs to the family of linear voltage regulators designed for low-noise, stable power delivery. Unlike switching regulators, it provides clean output without electromagnetic interference, making it suitable for sensitive analog sections. The dual-output configuration simplifies bill-of-materials by replacing two separate single-output regulators.

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

Public confirmed substitute part numbers are not available in the provided documentation.