CAT150089SWI-G Equivalent & Substitute Parts

Part Overview

The CAT150089SWI-G is a Power Management Integrated Circuit (PMIC) supervisor with push-pull, totem pole output configuration. This device monitors a single voltage supply and provides active-low reset signaling with a 140ms minimum timeout. The part is classified as obsolete, making equivalent substitute components necessary for new designs and ongoing production support. Substitute parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Type	Simple Reset/Power-On Reset Supervisor
Number of Voltages Monitored	1
Voltage Threshold	2.93V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	140ms Minimum
Operating Temperature Range	-40°C to 85°C (TA)
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CAT150089SWI-G are selected based on strict parametric equivalence across the following criteria:

Single voltage monitoring channel with 2.93V threshold
Push-pull, totem pole output configuration
Active-low reset with 140ms minimum timeout
Operating temperature range of -40°C to 85°C
8-SOIC surface mount package (0.154", 3.90mm width)
Moisture sensitivity level 1 (unlimited)

All substitute parts listed maintain these specifications without deviation. Substitution is valid only when all parameters match exactly. The primary distinction among substitutes is product status (active vs. discontinued) and manufacturer compliance certifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Logic	Reset Timeout	Operating Temp	Package	Product Status	RoHS Status
CAT150089SWI-G	onsemi	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Obsolete	Not Specified
ADM709SARZ	Analog Devices Inc.	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706ASESA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Active	ROHS3 Compliant
MAX706SESA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Active	ROHS3 Compliant
MAX709SESA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Active	ROHS3 Compliant
TPS3705-33D	Texas Instruments	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Active	ROHS3 Compliant
TPS3705-33DG4	Texas Instruments	2.93V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C to 85°C	8-SOIC	Discontinued at DiGi Electronics	ROHS3 Compliant

Engineering Selection Recommendations

For new designs and production applications, ADM709SARZ, MAX706ASESA+, MAX706SESA+, MAX709SESA+, and TPS3705-33D are preferred substitutes due to active product status and ROHS3 compliance certification. These parts are manufactured by established suppliers (Analog Devices Inc./Maxim Integrated and Texas Instruments) with confirmed inventory availability.

TPS3705-33DG4 is classified as discontinued at DiGi Electronics and should not be selected for new production unless alternative supply channels are established.

All active substitute parts carry REACH Unaffected status and EAR99 ECCN classification, consistent with the original part's regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can I substitute the CAT150089SWI-G with any of the listed parts in existing designs?

A: Yes. All listed substitute parts maintain identical electrical specifications (2.93V threshold, 140ms reset timeout, active-low output, -40°C to 85°C operating range) and mechanical compatibility (8-SOIC package). Direct substitution is valid without circuit modification.

Q: What is the difference between MAX706ASESA+ and MAX706SESA+?

A: Both parts are manufactured by Analog Devices Inc./Maxim Integrated with identical electrical and mechanical specifications. The difference is in the part number designation only. Both are active products with ROHS3 compliance.

Q: Why is the CAT150089SWI-G marked as obsolete?

A: The original part is no longer manufactured by onsemi. Substitute parts from active manufacturers provide equivalent functionality with ongoing production support and improved supply chain availability.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts (ADM709SARZ, MAX706ASESA+, MAX706SESA+, MAX709SESA+, TPS3705-33D) are ROHS3 compliant. TPS3705-33DG4 is also ROHS3 compliant but is discontinued at DiGi Electronics.

Q: What is the moisture sensitivity level for these parts?

A: All parts, including the original CAT150089SWI-G and all substitutes, have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can I use TPS3705-33DG4 as a substitute?

A: TPS3705-33DG4 meets all electrical and mechanical specifications but is discontinued at DiGi Electronics. Use only if alternative supply sources are confirmed and inventory is secured.

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