AP65352SP-13 Equivalent & Substitute Parts

Part Overview

The AP65352SP-13 is a buck switching regulator IC manufactured by Diodes Incorporated, designed for positive adjustable output applications. This device delivers 3A output current with an adjustable output voltage range from 0.765V to 6V, operating from a 4.5V to 18V input supply. The part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The RT2858BHGSP from Richtek USA Inc. serves as the manufacturer-recommended substitute, offering compatible electrical and mechanical specifications with active product status.

Key Parameters

Parameter	Value
Function	Step-Down (Buck)
Output Configuration	Positive
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	18V
Voltage - Output (Min/Fixed)	0.765V
Current - Output	3A
Frequency - Switching	650kHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the AP65352SP-13 is determined by strict equivalence across the following critical parameters:

Input voltage range: 4.5V to 18V
Output voltage adjustability: minimum 0.765V
Output current capability: 3A
Switching frequency: 650kHz
Synchronous rectifier topology: Yes
Package type: 8-SOIC with exposed pad
Operating temperature range: -40°C to 85°C
Surface mount configuration

The RT2858BHGSP meets all these criteria with identical electrical specifications and mechanical compatibility. The substitute maintains the same package footprint, pin configuration, and thermal characteristics required for direct board-level replacement.

Parameter Comparison

Parameter	AP65352SP-13	RT2858BHGSP	Match Status
Manufacturer	Diodes Incorporated	Richtek USA Inc.	Different
Product Status	Obsolete	Active	Substitute is Active
Function	Step-Down	Step-Down	Equivalent
Output Configuration	Positive	Positive	Equivalent
Output Type	Adjustable	Adjustable	Equivalent
Number of Outputs	1	1	Equivalent
Voltage - Input (Min)	4.5V	4.5V	Equivalent
Voltage - Input (Max)	18V	18V	Equivalent
Voltage - Output (Min/Fixed)	0.765V	0.765V	Equivalent
Voltage - Output (Max)	6V	8V	Substitute Exceeds
Current - Output	3A	3A	Equivalent
Frequency - Switching	650kHz	650kHz	Equivalent
Synchronous Rectifier	Yes	Yes	Equivalent
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad	8-SOIC (0.154", 3.90mm Width) Exposed Pad	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	Equivalent

Engineering Selection Recommendations

The RT2858BHGSP is the appropriate substitute for the obsolete AP65352SP-13 based on the following factors:

Both devices maintain identical electrical specifications across all critical parameters including input voltage range, output voltage adjustability, output current, and switching frequency.
The RT2858BHGSP holds active product status, ensuring long-term availability and supply chain continuity.
Both parts are ROHS3 compliant and carry identical moisture sensitivity ratings, meeting regulatory and environmental requirements.
Package and mounting specifications are identical, enabling direct PCB-level replacement without layout modifications.
The RT2858BHGSP's maximum output voltage of 8V exceeds the AP65352SP-13's 6V specification, providing additional design margin for adjustable output applications.

Frequently Asked Questions (FAQ)

Q: Can the RT2858BHGSP directly replace the AP65352SP-13 on existing PCBs?

A: Yes. Both devices use the 8-SOIC package with identical pin configuration and exposed pad thermal design. No PCB layout modifications are required for direct substitution.

Q: What is the primary reason for substituting the AP65352SP-13?

A: The AP65352SP-13 is classified as obsolete. The RT2858BHGSP is the manufacturer-recommended substitute with active product status, ensuring continued availability for production and new designs.

Q: Are the electrical specifications identical between these two parts?

A: The devices are electrically equivalent across all critical parameters: input voltage range (4.5V–18V), adjustable output voltage (0.765V minimum), output current (3A), switching frequency (650kHz), and operating temperature range (-40°C to 85°C). The RT2858BHGSP offers a higher maximum output voltage of 8V compared to the AP65352SP-13's 6V.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AP65352SP-13 and RT2858BHGSP are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 hours), meeting the same regulatory and environmental requirements.

Q: What is the package type for both devices?

A: Both devices use the 8-SOIC (0.154", 3.90mm Width) package with exposed pad for thermal management. This is a standard surface mount package suitable for automated assembly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message