AP2008SG-13 Equivalent & Substitute Parts

Part Overview

The AP2008SG-13 is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Diodes Incorporated in an 8-SOIC package. This device functions as a transistor driver for step-down voltage conversion with a single output phase. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	AP2008SG-13
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Function	Step-Down Buck Regulator Controller
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Output Phases	1
Voltage Supply Range (Vcc/Vdd)	3.6V ~ 20V
Switching Frequency	10kHz ~ 300kHz
Synchronous Rectifier	No
Control Features	Soft Start
Operating Temperature Range	-20°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the AP2008SG-13 is determined by functional equivalence across the following critical parameters:

Output topology: Buck (step-down) configuration
Output type: Transistor driver for external power stage
Output configuration: Positive output
Single output phase architecture
Soft start control feature
Supply voltage compatibility within operational range
Switching frequency capability
Surface mount packaging with compatible pinout

The SP6132HEU-L/TR from MaxLinear, Inc. qualifies as a manufacturer-recommended substitute based on matching functional topology, output type, and control architecture. While package and electrical specifications differ, the device maintains functional equivalence for buck regulator controller applications.

Parameter Comparison

Parameter	AP2008SG-13 (Diodes Inc.)	SP6132HEU-L/TR (MaxLinear)
Category	Power Management (PMIC)	Power Management (PMIC)
Function	Step-Down Buck Regulator Controller	Step-Down Buck Regulator Controller
Output Type	Transistor Driver	Transistor Driver
Output Configuration	Positive	Positive
Topology	Buck	Buck
Number of Outputs	1	1
Output Phases	1	1
Voltage Supply Range (Vcc/Vdd)	3.6V ~ 20V	3V ~ 28V
Switching Frequency	10kHz ~ 300kHz	300kHz
Synchronous Rectifier	No	Yes
Control Features	Soft Start	Soft Start
Operating Temperature Range	-20°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	1 (Unlimited)

Engineering Selection Recommendations

The AP2008SG-13 is obsolete and no longer in active production. The SP6132HEU-L/TR is designated as the manufacturer-recommended substitute and is currently in active production status with full availability.

Key considerations for selection:

The SP6132HEU-L/TR maintains functional equivalence as a buck regulator controller with transistor driver output
The substitute device offers extended supply voltage range (3V ~ 28V versus 3.6V ~ 20V), providing broader application flexibility
The SP6132HEU-L/TR includes integrated synchronous rectification, improving efficiency compared to the non-synchronous AP2008SG-13
Operating temperature range is extended on the substitute (-40°C ~ 85°C versus -20°C ~ 85°C)
Package change from 8-SOIC to 10-MSOP requires PCB layout modification and pinout verification
Both devices maintain RoHS compliance and soft start control features
The substitute offers superior moisture sensitivity rating (MSL 1 versus MSL 3)

Frequently Asked Questions (FAQ)

Q: Can the SP6132HEU-L/TR directly replace the AP2008SG-13 without design changes?

A: Functional replacement is possible, but package and pinout differences require PCB layout modification. The 8-SOIC to 10-MSOP package change necessitates new footprint design and pin mapping verification before implementation.

Q: What are the key functional differences between these devices?

A: Both devices function as buck regulator controllers with transistor driver outputs. The SP6132HEU-L/TR includes synchronous rectification capability, which the AP2008SG-13 lacks. The substitute also offers wider supply voltage range and extended temperature operating range.

Q: Why is the AP2008SG-13 classified as obsolete?

A: The AP2008SG-13 has been discontinued by Diodes Incorporated and is no longer in active production. The SP6132HEU-L/TR represents the current technology alternative for equivalent buck regulator controller applications.

Q: Are there any compliance or certification concerns with substitution?

A: Both devices maintain RoHS compliance. The SP6132HEU-L/TR carries RoHS Compliant status while the AP2008SG-13 is ROHS3 Compliant. Both are suitable for applications requiring regulatory compliance in their respective compliance frameworks.

Q: What impact does the package change have on thermal management?

A: The 10-MSOP package (0.118" width) is narrower than the 8-SOIC package (0.154" width). Thermal performance characteristics are not provided in the specification data; thermal analysis specific to your application requirements is necessary.

Q: Is the SP6132HEU-L/TR available in the same tape and reel packaging?

A: Yes, the SP6132HEU-L/TR is supplied in Tape & Reel (TR) packaging format, compatible with automated assembly processes.

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