MAX1853EXT Equivalent & Substitute Parts

Part Overview

The MAX1853EXT is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring positive or negative fixed output voltage generation. This device operates as a ratiometric regulator with a single output capable of delivering 30mA, utilizing charge pump topology with a 200kHz switching frequency.

The MAX1853EXT 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 requirements for applications currently utilizing this component.

Substiute Parts

MAX1853EXT

Analog Devices Inc./Maxim IntegratedIn Stock: 60412MAX1853EXT Datasheet

Current PartRFQ

MAX1853EXT+

Analog Devices Inc./Maxim IntegratedIn Stock: 1187MAX1853EXT+ Datasheet

DirectRFQ

MAX1853EXT+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1749MAX1853EXT+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX1853EXT are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Critical Parameters for Substitution:

• Identical charge pump topology and ratiometric function
• Matching output configuration (positive or negative)
• Identical fixed output voltage capability (-Vin, 2Vin)
• Equivalent input voltage range (2.5V to 5.5V)
• Matching output current rating (30mA)
• Identical switching frequency (200kHz)
• Same package type (6-TSSOP, SC-88, SOT-363 / SC-70-6)
• Equivalent operating temperature range (-40°C to 85°C)
• Surface mount mounting type

All identified substitutes meet these parameters without deviation. Substitutes are grouped by product status and compliance certification to facilitate selection based on availability and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

MAX1853EXT+ (Direct Substitute)

The MAX1853EXT+ is a direct electrical and mechanical equivalent to the MAX1853EXT. This part maintains active product status with Analog Devices Inc./Maxim Integrated and achieves ROHS3 compliance and REACH unaffected certification. Selection of MAX1853EXT+ is appropriate for applications requiring regulatory compliance with modern environmental standards while maintaining identical electrical performance and package compatibility.

MAX1853EXT+T (Manufacturer Recommended Substitute)

The MAX1853EXT+T is the manufacturer-recommended substitute, offering identical electrical specifications and package configuration to the MAX1853EXT. This variant is supplied in Cut Tape (CT) and Digi-Reel® packaging formats and maintains active product status. MAX1853EXT+T achieves ROHS3 compliance and REACH unaffected certification. This part is suitable for high-volume production environments requiring standardized tape and reel packaging.

Both substitute parts provide superior product lifecycle status compared to the obsolete MAX1853EXT, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can MAX1853EXT+ and MAX1853EXT+T be used interchangeably with MAX1853EXT?

A: Yes. Both MAX1853EXT+ and MAX1853EXT+T are electrically and mechanically equivalent to MAX1853EXT. All three parts share identical charge pump topology, output configuration, voltage ratings, current capacity, switching frequency, operating temperature range, and package specifications. The primary differences are product status and compliance certifications.

Q: What is the difference between MAX1853EXT+ and MAX1853EXT+T?

A: Both parts are electrically identical. The distinction is packaging format. MAX1853EXT+T is supplied in Cut Tape (CT) and Digi-Reel® packaging, making it suitable for automated assembly and high-volume production. MAX1853EXT+ does not specify a particular packaging format. Both achieve ROHS3 compliance and REACH unaffected status.

Q: Why is MAX1853EXT classified as obsolete?

A: The MAX1853EXT has reached end-of-life status with Analog Devices Inc./Maxim Integrated. Active substitutes MAX1853EXT+ and MAX1853EXT+T are available to support ongoing design requirements and production needs.

Q: Are there any compliance differences between the three parts?

A: Yes. MAX1853EXT is RoHS non-compliant. Both MAX1853EXT+ and MAX1853EXT+T are ROHS3 compliant and REACH unaffected. Applications subject to environmental or regulatory requirements must use MAX1853EXT+ or MAX1853EXT+T.

Q: Can I use these substitutes in existing designs without circuit modifications?

A: Yes. All three parts maintain identical electrical specifications, output voltage capability, current ratings, and package pinout. No circuit modifications are required for substitution.

Q: What inventory considerations apply to these parts?

A: MAX1853EXT inventory is limited (60,400 pcs). MAX1853EXT+ inventory is 1,150 pcs. MAX1853EXT+T inventory is 1,700 pcs. For new designs or long-term production, MAX1853EXT+ or MAX1853EXT+T are recommended due to active product status and superior availability outlook.