CAT705VI-GT3 Equivalent & Substitute Parts

Part Overview

The CAT705VI-GT3 is a Power Management IC (PMIC) supervisor with push-pull, totem pole output configuration for single-channel voltage monitoring and reset control. Manufactured by onsemi, this component operates across the -40°C to 85°C temperature range in an 8-SOIC surface mount package. The part is currently obsolete, making equivalent substitute components necessary for ongoing design support, production continuity, and system maintenance. Active alternatives from Analog Devices Inc., Maxim Integrated, and STMicroelectronics provide direct functional replacement while maintaining design compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	CAT705VI-GT3
Manufacturer	onsemi
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.65V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS Code	8542.39.0001

Substitute Part Grouping Explanation

Substitution eligibility for the CAT705VI-GT3 is determined by strict parametric matching across the following critical criteria:

Mandatory Matching Parameters:

Number of Voltages Monitored: 1 channel
Voltage Threshold: 4.65V
Output Configuration: Push-Pull, Totem Pole
Reset Logic: Active Low
Reset Timeout: 140ms Minimum
Operating Temperature Range: -40°C ~ 85°C (TA)
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount

All substitute parts listed below meet these exact electrical and mechanical specifications. Substitution is valid across manufacturers (Analog Devices Inc., Maxim Integrated, STMicroelectronics) provided these parameters remain constant. Packaging format variations (Cut Tape vs. Tape & Reel) do not affect functional equivalence but may impact procurement and handling requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Logic	Reset Timeout	Temp Range	Package	Product Status	RoHS Status
CAT705VI-GT3	onsemi	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Obsolete	Not Specified
ADM709LARZ-REEL	Analog Devices Inc.	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM8699ARNZ-REEL	Analog Devices Inc.	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX705ESA+T	Analog Devices Inc./Maxim Integrated	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MAX709LESA+T	Analog Devices Inc./Maxim Integrated	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM690AM6F	STMicroelectronics	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM703M6F	STMicroelectronics	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM802LM6F	STMicroelectronics	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM817LM6F	STMicroelectronics	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM818LM6F	STMicroelectronics	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
STM819LM6F	STMicroelectronics	4.65V	Push-Pull, Totem Pole	Active Low	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are parametrically equivalent to the CAT705VI-GT3 and provide direct functional replacement. Selection among active alternatives should prioritize the following factors:

Product Status: All substitute parts carry Active product status, ensuring ongoing manufacturer support, availability, and technical documentation. The original CAT705VI-GT3 is obsolete and no longer supported by onsemi.

Regulatory Compliance: All substitute parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The original part's compliance status is not specified.

Inventory Availability: Substitute parts demonstrate varying stock levels. MAX705ESA+T offers the highest inventory (50,300 pcs), followed by STM802LM6F (5,300 pcs) and ADM709LARZ-REEL (2,300 pcs). Selection based on procurement timeline and volume requirements is appropriate.

Packaging Format: Cut Tape (CT) & Digi-Reel® packaging (ADM709LARZ-REEL, MAX705ESA+T, STM802LM6F, STM817LM6F) suits lower-volume or prototype applications. Tape & Reel (TR) packaging (ADM8699ARNZ-REEL, MAX709LESA+T, STM690AM6F, STM703M6F, STM818LM6F, STM819LM6F) is optimized for high-volume production environments.

Manufacturer Selection: Analog Devices Inc./Maxim Integrated and STMicroelectronics are established suppliers with consistent product lifecycle management. Either manufacturer provides equivalent long-term support and availability.

Frequently Asked Questions (FAQ)

Q: Can I directly replace CAT705VI-GT3 with any of the listed substitute parts?

A: Yes. All listed parts meet identical electrical specifications (4.65V threshold, push-pull totem pole output, active low reset, 140ms minimum timeout, -40°C to 85°C operating range) and physical requirements (8-SOIC package, surface mount). No circuit modifications are required for functional substitution.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Both packaging formats contain identical components. Cut Tape (CT) & Digi-Reel® is supplied in smaller quantities suitable for prototyping and low-volume production. Tape & Reel (TR) is supplied in continuous reels optimized for automated assembly and high-volume manufacturing. Electrical and mechanical performance is identical.

Q: Why is the original CAT705VI-GT3 listed as obsolete?

A: onsemi has discontinued this part number. Active alternatives from Analog Devices Inc., Maxim Integrated, and STMicroelectronics provide equivalent functionality and are recommended for new designs and production continuity.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status. The original CAT705VI-GT3 RoHS status is not specified in available documentation.

Q: Which substitute part should I select for high-volume production?

A: STM802LM6F, STM817LM6F, STM818LM6F, or STM819LM6F in Tape & Reel format are optimized for automated assembly. MAX709LESA+T and ADM8699ARNZ-REEL also support high-volume production. Confirm packaging format and lead time with your supplier.

Q: Do substitute parts have the same pinout as CAT705VI-GT3?

A: All substitute parts use the 8-SOIC package with identical physical dimensions (0.154", 3.90mm width). Pinout compatibility is guaranteed for direct board-level substitution.

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

A: All substitute parts, like the original CAT705VI-GT3, have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without special moisture control requirements.

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