CS5205-1GT3 Equivalent & Substitute Parts

Part Overview

The CS5205-1GT3 is a linear voltage regulator IC manufactured by onsemi, designed for positive adjustable output applications requiring 5A current capacity in a TO-220-3 package. This device is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

The CS5205-1GT3 functions as a single-output positive adjustable linear regulator with integrated over-current and over-temperature protection. Its adjustable output range spans 1.25V to 13V, supporting input voltages up to 17V with a maximum dropout voltage of 1.3V at 5A load current.

Substiute Parts

CS5205-1GT3

onsemiIn Stock: 9628CS5205-1GT3 Datasheet

Current PartRFQ

LD1084V

STMicroelectronicsIn Stock: 3987LD1084V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5205-1GT3 is determined by the following critical parameters:

• Output Configuration & Type: Must be positive adjustable output
• Current Rating: Minimum 5A output capacity
• Voltage Range: Output adjustable range must encompass or exceed 1.25V to 13V
• Package Type: TO-220-3 through-hole mounting
• Number of Regulators: Single output configuration
• Protection Features: Over-temperature protection required; over-current protection preferred

The LD1084V from STMicroelectronics meets these substitution criteria. Both devices share identical output configuration, adjustable output type, 5A current rating, and TO-220-3 packaging. The LD1084V provides extended voltage input capability (30V maximum) and wider output range (1.25V to 28.5V), making it functionally compatible for applications within the CS5205-1GT3 operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The LD1084V is the qualified substitute for the CS5205-1GT3 based on the following factors:

Product Status: The LD1084V maintains active product status with STMicroelectronics, ensuring continued availability and manufacturing support. The CS5205-1GT3 is obsolete, necessitating substitution for new designs and ongoing procurement.

Compliance & Certifications: The LD1084V is ROHS3 compliant, whereas the CS5205-1GT3 is RoHS non-compliant. Both devices carry REACH Unaffected status and EAR99 ECCN classification.

Electrical Compatibility: The LD1084V operates within the CS5205-1GT3 parameter envelope for all critical specifications. The substitute provides superior input voltage tolerance (30V vs. 17V) and extended output voltage range (28.5V vs. 13V), offering design flexibility without compromising performance in existing applications.

Thermal & Quiescent Performance: The LD1084V supports extended operating temperature range (-40°C to 125°C vs. 0°C to 70°C) and includes short-circuit protection in addition to over-temperature protection. Quiescent current is slightly elevated (10 mA vs. 6 mA), and dropout voltage increases marginally (1.5V vs. 1.3V at 5A).

Frequently Asked Questions (FAQ)

Q: Can the LD1084V directly replace the CS5205-1GT3 in existing designs?

A: Yes. Both devices share identical output configuration (positive adjustable), current rating (5A), and TO-220-3 package. The LD1084V operates within the CS5205-1GT3 voltage envelope and provides equivalent functionality for applications designed around the original part's specifications.

Q: What are the key differences between these devices?

A: The LD1084V provides higher input voltage capability (30V vs. 17V), extended output voltage range (28.5V vs. 13V), wider operating temperature range (-40°C to 125°C vs. 0°C to 70°C), and RoHS3 compliance. Quiescent current is 4 mA higher, and dropout voltage increases by 0.2V at 5A load.

Q: Are there package compatibility concerns?

A: No. Both devices use TO-220-3 through-hole packaging with identical pinout and thermal characteristics, allowing direct PCB substitution without layout modifications.

Q: Which protection features does each device provide?

A: The CS5205-1GT3 includes over-current and over-temperature protection. The LD1084V provides over-temperature and short-circuit protection. Both offer thermal shutdown capability.

Q: What is the impact of the higher quiescent current in the LD1084V?

A: The LD1084V draws 10 mA quiescent current compared to 6 mA in the CS5205-1GT3, representing a 4 mA increase. This affects standby power consumption and is relevant only in applications with strict idle power budgets.

Q: Does the LD1084V support the same output voltage adjustment range?

A: Yes. Both devices support minimum output voltage of 1.25V. The LD1084V extends the maximum adjustable output to 28.5V versus 13V on the CS5205-1GT3, providing backward compatibility for all CS5205-1GT3 applications.