AS1352-Z Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The AS1352-Z is a linear voltage regulator IC manufactured by ams-OSRAM USA INC., classified as a Power Management (PMIC) component. This device functions as a positive programmable linear regulator with four independent outputs, each capable of delivering 200mA at output voltages ranging from 1.8V to 3.3V. The AS1352-Z is packaged in a 12-VQFN (4x4mm) surface mount configuration with an exposed pad.

The AS1352-Z carries an Obsolete product status. Locating equivalent substitute parts becomes necessary when the original part is no longer available through standard distribution channels or when design revisions require active product alternatives to ensure long-term supply chain continuity and manufacturing support.

Substiute Parts

AS1352-Z

ams-OSRAM USA INC.In Stock: 1113AS1352-Z Datasheet

Current PartRFQ

AS1352

ams-OSRAM USA INC.In Stock: 4158AS1352 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AS1352-Z are identified based on strict parametric equivalence. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Output Configuration: Positive
• Output Type: Programmable
• Number of Regulators: 4
• Voltage - Input (Max): 5.5V
• Voltage - Output (Min/Fixed): 1.8V
• Voltage - Output (Max): 3.3V
• Current - Output: 200mA
• Current - Quiescent (Iq): 350 µA
• PSRR: 70dB ~ 40dB (1KHz ~ 100kHz)
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Soft Start
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 12-VQFN Exposed Pad
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts must match these parameters without exception to ensure functional and mechanical compatibility in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The AS1352 serves as the direct parametric equivalent to the AS1352-Z. Both parts are manufactured by ams-OSRAM USA INC. and share identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration: The AS1352-Z is classified as Obsolete, while the AS1352 maintains Active product status. This distinction is significant for supply chain planning. The AS1352 is the recommended selection for new designs and ongoing production requirements where long-term availability and manufacturer support are necessary.

Compliance and Certification: Both parts carry identical compliance certifications: RoHS Compliant, REACH Unaffected, and Moisture Sensitivity Level 1 (Unlimited). No compliance barriers exist between the two parts.

Packaging Distinction: The AS1352 is supplied in Cut Tape (CT) packaging, which is standard for high-volume manufacturing and automated assembly processes. The main part packaging type is not specified in the provided data.

For applications currently using the AS1352-Z, direct substitution with the AS1352 is supported by complete parametric equivalence. No circuit modifications, layout adjustments, or design changes are required.

Frequently Asked Questions (FAQ)

Q: Can the AS1352 be used as a direct replacement for the AS1352-Z in existing designs?

A: Yes. The AS1352 is a parametric equivalent with identical electrical specifications, output configuration, current ratings, voltage ranges, protection features, and package type. Direct substitution is supported without design modifications.

Q: What is the significance of the product status difference between AS1352-Z (Obsolete) and AS1352 (Active)?

A: Product status indicates manufacturer support and availability. The Obsolete status of AS1352-Z means the part is no longer in active production. The Active status of AS1352 indicates ongoing manufacturing and distribution support. For new designs and long-term production, the AS1352 is the appropriate selection.

Q: Are there any differences in the 12-VQFN package between these parts?

A: Both parts use the 12-VQFN Exposed Pad package with identical 4x4mm dimensions. Package compatibility is complete, and PCB layouts designed for the AS1352-Z will accommodate the AS1352 without modification.

Q: Do both parts meet the same regulatory and compliance requirements?

A: Yes. Both the AS1352-Z and AS1352 are RoHS Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Compliance certifications are identical.

Q: What is the difference between the packaging types listed for these parts?

A: The AS1352 is specified with Cut Tape (CT) packaging, which is standard for automated assembly and high-volume manufacturing. The packaging type for the AS1352-Z is not specified in the provided data. Both parts are surface mount components suitable for standard PCB assembly processes.

Q: Are the quiescent current and PSRR specifications identical?

A: Yes. Both parts specify a quiescent current (Iq) of 350 µA and identical PSRR performance of 70dB ~ 40dB across the 1KHz ~ 100kHz frequency range. Power consumption and noise rejection characteristics are equivalent.

Q: Can the AS1352 be used in applications requiring the full -40°C ~ 85°C operating temperature range?

A: Yes. Both parts are rated for the identical operating temperature range of -40°C ~ 85°C, supporting applications across industrial, commercial, and extended temperature environments.