IR2170S Equivalent & Substitute Parts

Part Overview

The IR2170S is a Current Sense Regulator manufactured by Infineon Technologies, designed for power management applications requiring precise current sensing in the 1mA output range. This device operates across an input voltage range of 9.5V to 20V and is housed in an 8-SOIC surface mount package.

The IR2170S has reached obsolete product status, making it necessary to identify functionally compatible alternatives for ongoing design requirements and procurement needs. The substitute part IR2175STRPBF provides equivalent electrical and mechanical compatibility while maintaining active product status.

Substiute Parts

IR2170S

Infineon TechnologiesIn Stock: 974IR2170S Datasheet

Current PartRFQ

IR2175STRPBF

Infineon TechnologiesIn Stock: 4612IR2175STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IR2170S is determined by the following critical parameters:

• Package Compatibility: Both parts use 8-SOIC (0.154", 3.90mm Width) surface mount packaging, ensuring mechanical and electrical pin compatibility
• Input Voltage Range: Both parts operate across 9.5V ~ 20V, maintaining identical supply voltage requirements
• Operating Temperature Range: Both parts support -40°C ~ 125°C, ensuring thermal compatibility across all specified operating conditions
• Functional Category: Both parts serve as Current Sense regulators within the Power Management (PMIC) category
• Mounting Type: Both parts are Surface Mount devices, compatible with identical PCB assembly processes

The IR2175STRPBF qualifies as a direct substitute based on these core electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The IR2175STRPBF is the manufacturer-recommended substitute for the obsolete IR2170S. Selection of the IR2175STRPBF is supported by the following factors:

• Product Status: The IR2175STRPBF maintains active product status with established supply chain availability (4525 Pcs in stock), whereas the IR2170S is obsolete
• Regulatory Compliance: The IR2175STRPBF is ROHS3 compliant, meeting current environmental and regulatory requirements
• Packaging and Pinout: Identical 8-SOIC package ensures direct PCB compatibility without layout modifications
• Electrical Parameters: Matching input voltage range (9.5V ~ 20V) and operating temperature range (-40°C ~ 125°C) ensure functional equivalence in circuit applications
• Certification Status: Both parts carry identical REACH Unaffected and EAR99 ECCN classifications

The higher output current specification (20mA vs. 1mA) and improved accuracy (±0.5%) of the IR2175STRPBF represent enhanced performance characteristics suitable for current sensing applications.

Frequently Asked Questions (FAQ)

Q: Can the IR2175STRPBF be used as a direct replacement for the IR2170S without PCB modifications?

A: Yes. Both parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging with matching pinouts, enabling direct substitution without PCB layout changes.

Q: What are the key differences between these parts?

A: The primary differences are product status (IR2170S is obsolete; IR2175STRPBF is active), output current specification (1mA vs. 20mA), accuracy rating (not specified vs. ±0.5%), and regulatory compliance (RoHS non-compliant vs. ROHS3 compliant).

Q: Are the input voltage and operating temperature ranges identical?

A: Yes. Both parts operate across 9.5V ~ 20V input voltage and -40°C ~ 125°C operating temperature range, ensuring thermal and electrical compatibility.

Q: What is the significance of the higher output current on the IR2175STRPBF?

A: The IR2175STRPBF provides 20mA output current compared to the IR2170S at 1mA. This enhanced specification allows the substitute to support applications requiring higher current sensing output without circuit redesign.

Q: Does the IR2175STRPBF meet current environmental regulations?

A: Yes. The IR2175STRPBF is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory requirements for electronic components.

Q: What is the difference in Moisture Sensitivity Level (MSL) between these parts?

A: The IR2170S has MSL 1 (Unlimited shelf life), while the IR2175STRPBF has MSL 2 (1 Year shelf life). This affects storage and handling requirements, with the substitute requiring more controlled storage conditions.