TLV3601DCKT Equivalent & Substitute Parts

Part Overview

The TLV3601DCKT is a general-purpose CMOS comparator manufactured by Texas Instruments, housed in a 5-pin SC-70 surface-mount package. This single-element comparator features rail-to-rail output capability, push-pull configuration, and operates across a 2.4V to 5.5V supply voltage range. The device is classified as Active product status and is suitable for applications requiring low-power voltage comparison with fast propagation delay characteristics.

Substitute parts are identified when design requirements necessitate alternative packaging formats, enhanced electrical performance specifications, integrated functionality such as latching or voltage reference features, or when primary part availability is constrained. Equivalent parts maintain functional compatibility within specified electrical and thermal operating parameters.

Key Parameters

Parameter	TLV3601DCKT	Unit
Package Type	5-TSSOP, SC-70-5, SOT-353	—
Voltage Supply Range	2.4V ~ 5.5V	V
Input Offset Voltage (Max)	5mV @ 5V	mV
Input Bias Current (Max)	1µA @ 5V	µA
Output Type	CMOS, Push-Pull, Rail-to-Rail	—
Quiescent Current (Max)	7mA	mA
Propagation Delay (Max)	3.5ns	ns
Hysteresis	5mV	mV
Operating Temperature	-40°C ~ 125°C	°C
CMRR / PSRR (Typ)	80dB / 80dB	dB
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the TLV3601DCKT are classified based on the following substitution criteria:

Primary Compatibility Parameters:

Output Type: CMOS, Push-Pull configuration
Supply Voltage Range: Minimum 2.4V support (or lower) with maximum 5.5V
Package Category: Surface-mount technology (5-pin or larger pin-count variants)
Operating Temperature: -40°C minimum to 125°C maximum
Functional Type: General-purpose comparator or comparator with integrated features

Substitution Categories:

Category 1: Direct Functional Equivalents (5-pin packages)

MAX9140EUK+T: General-purpose comparator in SOT-23-5 package with enhanced input offset specification
MCP6561RT-E/OT: General-purpose comparator in SOT-23-5 package with extended supply voltage range (1.8V minimum)

Category 2: Enhanced Functionality Variants (8-pin packages)

MAX941ESA+: Comparator with integrated latch and shutdown functionality in 8-SOIC package
MAX941EUA+T: Comparator with integrated latch and shutdown functionality in 8-TSSOP/8-MSOP package

Category 3: Integrated Reference Variants (6-pin packages)

MCP65R41T-2402E/CHY: Comparator with integrated voltage reference in SOT-23-6 package

All substitute parts maintain CMOS push-pull output architecture and surface-mount configuration. Substitution validity depends on application-specific requirements for package size, pin count, integrated features, and electrical performance thresholds.

Parameter Comparison

Parameter	TLV3601DCKT	MAX9140EUK+T	MAX941ESA+	MAX941EUA+T	MCP6561RT-E/OT	MCP65R41T-2402E/CHY	Unit
Manufacturer	Texas Instruments	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Microchip Technology	Microchip Technology	—
Package Type	SC-70-5	SOT-23-5	8-SOIC	8-TSSOP/8-MSOP	SOT-23-5	SOT-23-6	—
Supply Voltage Range	2.4V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V	V
Input Offset Voltage (Max)	5mV @ 5V	2mV @ 5V	2mV @ 5.5V	3mV @ 5.5V	10mV @ 5.5V	10mV @ 5.5V	mV
Input Bias Current (Max)	1µA @ 5V	0.32µA @ 5V	0.15µA @ 5.5V	0.15µA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V	µA / pA
Output Type	CMOS, Push-Pull, Rail-to-Rail	CMOS, Push-Pull, TTL	CMOS, Push-Pull, TTL	CMOS, Push-Pull, TTL	CMOS, Push-Pull, Rail-to-Rail, TTL	CMOS, Push-Pull, TTL	—
Quiescent Current (Max)	7mA	300µA	700µA	700µA	130µA	4µA	mA / µA
Propagation Delay (Max)	3.5ns	40ns	80ns	80ns	80ns	8µs	ns / µs
Hysteresis	5mV	1.5mV	—	—	5mV	5mV	mV
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	°C
CMRR (Typ)	80dB	81.94dB	81.94dB	81.94dB	66dB	70dB	dB
PSRR (Typ)	80dB	81.94dB	81.94dB	81.94dB	70dB	80dB	dB
Product Status	Active	Active	Active	Active	Active	Active	—
RoHS Compliance	Not applicable	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Substitution Validity Assessment:

All listed substitute parts maintain Active product status and are suitable for general-purpose comparator applications. Selection among substitutes depends on specific application constraints:

MAX9140EUK+T Selection Criteria:

Requires SOT-23-5 package compatibility (larger footprint than SC-70-5)
Minimum supply voltage requirement of 2.7V (not compatible with 2.4V applications)
Superior input offset voltage specification (2mV vs. 5mV)
Reduced quiescent current (300µA vs. 7mA)
Extended propagation delay (40ns vs. 3.5ns)
ROHS3 compliant

MAX941ESA+ and MAX941EUA+T Selection Criteria:

Integrated latch and shutdown functionality for applications requiring state retention
8-pin package configuration (increased board space requirement)
Minimum supply voltage requirement of 2.7V
Superior input offset voltage and bias current specifications
Extended propagation delay (80ns)
ROHS3 compliant
MAX941ESA+ in 8-SOIC tube packaging; MAX941EUA+T in 8-TSSOP tape & reel

MCP6561RT-E/OT Selection Criteria:

Extended supply voltage range (1.8V minimum) for low-voltage applications
SOT-23-5 package compatibility
Rail-to-rail output capability maintained
Reduced quiescent current (130µA)
Extended propagation delay (80ns)
ROHS3 compliant

MCP65R41T-2402E/CHY Selection Criteria:

Integrated voltage reference eliminates external reference component requirement
SOT-23-6 package (6-pin configuration)
Extended supply voltage range (1.8V minimum)
Lowest quiescent current (4µA) for power-constrained applications
Significantly extended propagation delay (8µs) due to integrated reference
ROHS3 compliant

Compatibility Constraints:

Applications requiring 2.4V minimum supply voltage: TLV3601DCKT or MCP6561RT-E/OT only
Applications requiring sub-10ns propagation delay: TLV3601DCKT only
Applications requiring integrated latch functionality: MAX941ESA+ or MAX941EUA+T only
Applications requiring integrated voltage reference: MCP65R41T-2402E/CHY only
Applications requiring extended temperature range (-40°C to 125°C): TLV3601DCKT, MCP6561RT-E/OT, or MCP65R41T-2402E/CHY

Frequently Asked Questions (FAQ)

Q: Can MAX9140EUK+T directly replace TLV3601DCKT in a 2.4V supply application?

A: No. MAX9140EUK+T specifies a minimum supply voltage of 2.7V, making it incompatible with applications operating at 2.4V. TLV3601DCKT or MCP6561RT-E/OT must be used for 2.4V operation.

Q: What is the primary difference between MAX941ESA+ and MAX941EUA+T?

A: Both devices provide identical electrical specifications and integrated latch/shutdown functionality. The primary difference is packaging: MAX941ESA+ is supplied in 8-SOIC tube format, while MAX941EUA+T is supplied in 8-TSSOP tape & reel format. Package selection depends on assembly equipment and handling requirements.

Q: Is MCP65R41T-2402E/CHY suitable as a direct replacement for TLV3601DCKT?

A: MCP65R41T-2402E/CHY is functionally compatible but introduces significant design changes. The integrated voltage reference and 8µs propagation delay make it unsuitable for applications requiring fast comparison speeds. This device is appropriate only when external voltage reference elimination is a design requirement.

Q: Why does TLV3601DCKT have higher quiescent current (7mA) compared to substitute parts?

A: The 7mA specification for TLV3601DCKT represents maximum quiescent current at specified conditions. Substitute parts from Maxim Integrated and Microchip Technology demonstrate lower quiescent current specifications due to different process technology and circuit design approaches. Actual operating current depends on supply voltage, temperature, and load conditions.

Q: Can MCP6561RT-E/OT operate at 2.4V supply voltage?

A: No. MCP6561RT-E/OT specifies a minimum supply voltage of 1.8V and maximum of 5.5V. While 1.8V operation is supported, the device is not specifically rated for 2.4V operation. For 2.4V applications, TLV3601DCKT is the appropriate selection.

Q: What packaging considerations apply when substituting SC-70-5 with SOT-23-5?

A: SC-70-5 and SOT-23-5 are both 5-pin surface-mount packages but differ in physical dimensions and pin spacing. SOT-23-5 is larger than SC-70-5. PCB layout modifications are required, including footprint redesign and potential routing adjustments. Verify mechanical compatibility with existing board design before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (MAX9140EUK+T, MAX941ESA+, MAX941EUA+T, MCP6561RT-E/OT, MCP65R41T-2402E/CHY) are ROHS3 compliant. TLV3601DCKT specifies RoHS status as "Not applicable."

Q: Which substitute part offers the best input offset voltage specification?

A: MAX941ESA+ and MAX941EUA+T both specify 2mV and 3mV input offset voltage respectively at 5.5V, compared to TLV3601DCKT at 5mV. These devices provide superior offset voltage performance for precision comparison applications.

Q: Can substitute parts with TTL output replace rail-to-rail output in all applications?

A: No. TTL output specification indicates reduced output voltage swing compared to rail-to-rail. Applications requiring full supply voltage swing at the output require rail-to-rail capability. TLV3601DCKT and MCP6561RT-E/OT maintain rail-to-rail output; other substitutes provide TTL output only.

Q: What is the significance of hysteresis specification in comparator selection?

A: Hysteresis prevents oscillation when input signals cross the comparison threshold slowly. TLV3601DCKT and MCP6561RT-E/OT specify 5mV hysteresis. MAX9140EUK+T specifies 1.5mV. MAX941 series and MCP65R41T-2402E/CHY do not specify hysteresis. Applications with slow-moving input signals benefit from higher hysteresis values.

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