MAX619ESA Equivalent & Substitute Parts

Part Overview

The MAX619ESA is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed to provide a fixed 5V output from a 2V to 3.6V input with 50mA output current capacity. This device operates at 500kHz switching frequency and is packaged in an 8-SOIC surface mount package. The MAX619ESA is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MAX619ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 4419MAX619ESA Datasheet

Current PartRFQ

MAX619ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2976MAX619ESA+ Datasheet

DirectRFQ

LTC1516CS8#PBF

Analog Devices Inc.In Stock: 2071LTC1516CS8#PBF Datasheet

MFR RecommendedRFQ

LTC1516CS8#TRPBF

Analog Devices Inc.In Stock: 2561LTC1516CS8#TRPBF Datasheet

MFR RecommendedRFQ

LTC1516IS8#PBF

Analog Devices Inc.In Stock: 2558LTC1516IS8#PBF Datasheet

MFR RecommendedRFQ

LTC1516IS8#TRPBF

Analog Devices Inc.In Stock: 3737LTC1516IS8#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX619ESA is determined by the following critical parameters that must remain consistent across equivalent parts:

• Output voltage: 5V fixed
• Output current capacity: 50mA minimum
• Input voltage range: 2V to 3.6V minimum (wider ranges acceptable)
• Package type: 8-SOIC surface mount
• Topology: Charge pump step-up regulator
• Operating temperature range: -40°C to 85°C (or compatible subset)

The substitute parts identified fall into two categories: direct MAX619 variants with updated product status and LTC1516 series alternatives from the same manufacturer. All substitutes maintain identical electrical specifications for output voltage, output current, and package configuration. Differences in switching frequency (500kHz vs. 600kHz) and input voltage maximum (3.6V vs. 5V) represent functional improvements rather than limitations.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the MAX619ESA, the following selection criteria apply based on product status and compliance requirements:

Direct MAX619 Replacement: The MAX619ESA+ is the primary substitute, offering identical electrical and thermal specifications while maintaining active product status and ROHS3 compliance. This part is recommended for designs requiring no functional changes and maximum compatibility with existing layouts and firmware.

LTC1516 Series Alternatives: The LTC1516 family (LTC1516CS8#PBF, LTC1516CS8#TRPBF, LTC1516IS8#PBF, LTC1516IS8#TRPBF) provides functionally equivalent performance with extended input voltage range (2V to 5V) and higher switching frequency (600kHz). These parts are suitable for applications where the wider input range provides system flexibility. Temperature rating selection depends on application requirements: LTC1516CS8 variants operate from 0°C to 70°C, while LTC1516IS8 variants maintain the full -40°C to 85°C range matching the original MAX619ESA.

Packaging Considerations: Tube packaging (MAX619ESA+, LTC1516CS8#PBF, LTC1516IS8#PBF) is appropriate for lower-volume production and prototyping. Tape & Reel packaging (LTC1516CS8#TRPBF, LTC1516IS8#TRPBF) is optimized for high-volume automated assembly.

Compliance Requirements: All active substitutes meet ROHS3 compliance, addressing regulatory requirements that the obsolete MAX619ESA does not satisfy.

Frequently Asked Questions (FAQ)

Q: Can the MAX619ESA+ be used as a direct replacement for MAX619ESA?

A: Yes. The MAX619ESA+ maintains identical electrical specifications, thermal operating range, and package configuration. The primary difference is product status (active vs. obsolete) and RoHS compliance. No design modifications are required.

Q: What are the key differences between MAX619ESA and LTC1516 substitutes?

A: The LTC1516 series accepts input voltages up to 5V compared to 3.6V for the MAX619ESA, and operates at 600kHz switching frequency versus 500kHz. Output voltage, output current, and package remain identical. These differences represent functional improvements for applications requiring wider input voltage tolerance.

Q: Which LTC1516 variant should I select for my application?

A: Temperature rating determines the choice. Select LTC1516IS8 (either #PBF or #TRPBF) if your application requires -40°C to 85°C operation. Select LTC1516CS8 (either #PBF or #TRPBF) if operation is limited to 0°C to 70°C. Packaging format (Tube vs. Tape & Reel) depends on production volume and assembly equipment.

Q: Are all substitutes pin-compatible with the MAX619ESA?

A: Yes. All substitutes use the 8-SOIC package with identical pinout and electrical interface, enabling direct PCB replacement without layout modifications.

Q: What is the inventory status of these substitutes?

A: MAX619ESA+ has 2,900 units in stock. LTC1516CS8#PBF has 2,000 units, LTC1516CS8#TRPBF has 2,506 units, LTC1516IS8#PBF has 2,471 units, and LTC1516IS8#TRPBF has 3,700 units available.

Q: Does the higher switching frequency of LTC1516 (600kHz vs. 500kHz) affect circuit design?

A: The higher switching frequency may reduce output filter component sizes but does not require design changes for functional compatibility. Existing filter designs will continue to operate correctly with the LTC1516 series.