AP7315-28SA-7 Equivalent & Substitute Parts

Part Overview

The AP7315-28SA-7 is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. This positive fixed output regulator delivers 150mA at 2.8V with a maximum dropout voltage of 0.29V at rated current. The device is housed in a SOT-23-3 surface mount package and is actively produced. Substitute parts are identified when electrical performance, output specifications, thermal characteristics, and package compatibility remain identical across the product line.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	2.8V
Current - Output	150mA
Voltage - Input (Max)	5.25V
Voltage Dropout (Max)	0.29V @ 150mA
Operating Temperature	-40°C ~ 85°C
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the AP7315-28SA-7 are identified based on strict electrical and mechanical equivalence. The substitution criteria are:

Identical output voltage: 2.8V fixed
Identical output current rating: 150mA
Identical maximum input voltage: 5.25V
Identical maximum dropout voltage: 0.29V @ 150mA
Identical package type: SOT-23-3 (TO-236-3, SC-59)
Identical mounting configuration: Surface Mount
Identical regulatory compliance: ROHS3 Compliant, REACH Unaffected
Same manufacturer: Diodes Incorporated
Active product status

The AP7315-28SR-7 meets all these criteria and is classified as a parametric equivalent. The difference between these part numbers relates to packaging format (Tape & Reel designation) rather than electrical or mechanical specifications.

Parameter Comparison

Parameter	AP7315-28SA-7	AP7315-28SR-7	Match
Manufacturer	Diodes Incorporated	Diodes Incorporated	✓
Output Configuration	Positive	Positive	✓
Output Type	Fixed	Fixed	✓
Voltage - Output (Min/Fixed)	2.8V	2.8V	✓
Current - Output	150mA	150mA	✓
Voltage - Input (Max)	5.25V	5.25V	✓
Voltage Dropout (Max)	0.29V @ 150mA	0.29V @ 150mA	✓
Current - Quiescent (Iq)	60 µA	60 µA	✓
Current - Supply (Max)	100 µA	100 µA	✓
PSRR	75dB (1kHz)	75dB (1kHz)	✓
Protection Features	Over Current	Over Current	✓
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	✓
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Active	Active	✓

Engineering Selection Recommendations

Both AP7315-28SA-7 and AP7315-28SR-7 are active products from Diodes Incorporated with identical electrical specifications and package configurations. Selection between these parts is based on supply chain availability and packaging format requirements. Both devices maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The choice between SA-7 and SR-7 designations does not affect circuit performance or board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can AP7315-28SR-7 be used as a direct replacement for AP7315-28SA-7?

A: Yes. Both parts are electrically and mechanically identical. All electrical parameters, output specifications, thermal characteristics, and package dimensions are equivalent. The difference in part number suffix relates to packaging format only.

Q: What does the difference between SA-7 and SR-7 designations mean?

A: The suffix designates the packaging format. Both parts use identical SOT-23-3 packages for surface mount assembly. The designation difference does not affect electrical performance or PCB layout compatibility.

Q: Are there any compliance or certification differences between these parts?

A: No. Both AP7315-28SA-7 and AP7315-28SR-7 carry identical ROHS3 compliance and REACH unaffected status. Moisture sensitivity level (MSL) is 1 (Unlimited) for both parts.

Q: What are the critical parameters for substitution in this product category?

A: For linear voltage regulators, substitution requires matching: output voltage (2.8V), output current (150mA), maximum input voltage (5.25V), dropout voltage (0.29V @ 150mA), package type (SOT-23-3), and operating temperature range (-40°C ~ 85°C).

Q: Can these parts be used interchangeably in production?

A: Yes. Both parts meet identical specifications and are suitable for direct substitution in manufacturing environments. Supply chain selection can be based on availability and lead time without affecting circuit design or performance.

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