MAX1719EUT Equivalent & Substitute Parts

Part Overview

The MAX1719EUT is a charge pump switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring positive or negative fixed output voltage conversion. This component operates as a ratiometric regulator with a single output delivering 25mA, suitable for surface mount assembly in SOT-23-6 packaging.

The MAX1719EUT is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this charge pump topology.

Key Parameters

Parameter	Specification
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Power Management (PMIC)
Topology	Charge Pump
Function	Ratiometric
Output Configuration	Positive or Negative
Output Type	Fixed
Number of Outputs	1
Voltage - Input (Min)	1.5V
Voltage - Input (Max)	5.5V
Voltage - Output	-Vin, 2Vin
Current - Output	25mA
Frequency - Switching	60kHz ~ 200kHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	SOT-23-6
Supplier Device Package	SOT-6
Base Product Number	MAX1719

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1719EUT is determined by strict equivalence across the following critical parameters:

Topology: Charge pump switching regulator architecture
Output Configuration: Positive or negative fixed voltage capability
Electrical Specifications: Input voltage range (1.5V to 5.5V), output current (25mA), switching frequency (60kHz to 200kHz)
Thermal Performance: Operating temperature range (-40°C to 85°C)
Physical Form Factor: SOT-23-6 surface mount package
Functional Classification: Ratiometric output regulation with single output

Parts meeting these criteria are classified as direct substitutes. Variations in product status, packaging format, and compliance certifications do not affect electrical or mechanical compatibility.

Parameter Comparison

Parameter	MAX1719EUT	MAX1719EUT+	MAX1719EUT+T
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active	Active
Voltage - Input (Min)	1.5V	1.5V	1.5V
Voltage - Input (Max)	5.5V	5.5V	5.5V
Voltage - Output	-Vin, 2Vin	-Vin, 2Vin	-Vin, 2Vin
Current - Output	25mA	25mA	25mA
Frequency - Switching	60kHz ~ 200kHz	60kHz ~ 200kHz	60kHz ~ 200kHz
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	SOT-23-6	SOT-23-6	SOT-23-6
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MAX1719EUT+ and MAX1719EUT+T are direct electrical and mechanical substitutes for the obsolete MAX1719EUT. Both substitute parts maintain identical electrical specifications and package form factor, ensuring pin-compatible replacement without circuit modification.

The primary distinction between substitute options relates to product status and regulatory compliance:

MAX1719EUT+: Active product status with ROHS3 compliance. Standard packaging format.
MAX1719EUT+T: Active product status with ROHS3 compliance. Supplied in Cut Tape (CT) and Digi-Reel® packaging format, supporting automated assembly processes.

Selection between MAX1719EUT+ and MAX1719EUT+T depends on procurement requirements and assembly methodology. Both parts satisfy identical electrical and thermal performance criteria. The MAX1719EUT+T variant offers higher inventory availability (6400 pcs) compared to MAX1719EUT+ (824 pcs), supporting volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX1719EUT+ or MAX1719EUT+T be used as direct replacements for MAX1719EUT in existing designs?

A: Yes. Both substitute parts are electrically and mechanically equivalent. Pin configuration, electrical specifications, and thermal performance are identical. No circuit redesign or PCB modification is required.

Q: What is the difference between MAX1719EUT+ and MAX1719EUT+T?

A: The primary difference is packaging format. MAX1719EUT+ uses standard packaging, while MAX1719EUT+T is supplied in Cut Tape (CT) and Digi-Reel® format optimized for automated pick-and-place assembly. Electrical performance and pin compatibility are identical.

Q: Does the RoHS compliance difference between MAX1719EUT and the substitute parts affect compatibility?

A: No. RoHS compliance status does not affect electrical or mechanical compatibility. The substitute parts (MAX1719EUT+ and MAX1719EUT+T) are ROHS3 compliant, which may be advantageous for regulatory requirements in target markets.

Q: Are there inventory considerations when selecting between substitute parts?

A: Yes. MAX1719EUT+T has significantly higher inventory availability (6400 pcs) compared to MAX1719EUT+ (824 pcs). For volume production, MAX1719EUT+T may provide better supply chain continuity.

Q: What parameters must remain identical for substitution to be valid?

A: Input voltage range (1.5V to 5.5V), output voltage configuration (-Vin, 2Vin), output current (25mA), switching frequency (60kHz to 200kHz), operating temperature range (-40°C to 85°C), and SOT-23-6 package form factor must all remain unchanged for direct substitution.

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