AP7341-15FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7341-15FS4-7 is a linear voltage regulator IC manufactured by Diodes Incorporated, designed for positive fixed 1.5V output applications with 300mA current capacity. This active product operates in the -40°C to 85°C temperature range and is housed in a 4-XDFN exposed pad surface mount package. Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits equivalent electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Part Number	AP7341-15FS4-7
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.5V
Output Current	300mA
Input Voltage (Max)	5.25V
Dropout Voltage (Max)	0.47V @ 150mA
Quiescent Current	50 µA
PSRR	75dB (1kHz)
Package	4-XDFN Exposed Pad (X2-DFN1010-4)
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AP7341-15FS4-7 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or superior electrical specifications across all critical parameters: 1.5V fixed output voltage, 300mA output current, 5.25V maximum input voltage, 4-XDFN package format, -40°C to 85°C operating temperature range, Enable control feature, and Over Current protection. These parts are direct functional replacements with no design modifications required.

Manufacturer Recommended Alternatives provide functional substitution with specified parameter variations. These parts maintain the 1.5V output voltage, surface mount 4-pin package configuration, and core protection features but differ in output current capacity, input voltage rating, dropout voltage, or quiescent current specifications. Selection of these alternatives requires design review to confirm compatibility with application current and voltage requirements.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage (Max)	Quiescent Current	PSRR	Package	Inventory
AP7341-15FS4-7	Diodes Incorporated	1.5V	300mA	5.25V	0.47V @ 150mA	50 µA	75dB (1kHz)	4-XDFN	659 Pcs
AP7341D-15FS4-7	Diodes Incorporated	1.5V	300mA	5.25V	0.47V @ 150mA	50 µA	75dB (1kHz)	4-XDFN	15200 Pcs
AP7343-15FS4-7B	Diodes Incorporated	1.5V	300mA	5.25V	0.44V @ 300mA	60 µA	75dB (1kHz)	4-XDFN	80300 Pcs
AP7343D-15FS4-7B	Diodes Incorporated	1.5V	300mA	5.25V	0.44V @ 300mA	60 µA	75dB (1kHz)	4-XDFN	1505 Pcs
BU15TD2WNVX-TL	Rohm Semiconductor	1.5V	200mA	6V	0.7V @ 200mA	60 µA	70dB (1kHz)	4-UDFN	45050 Pcs
NCP177BMX150TCG	onsemi	1.5V	500mA	5.5V	0.38V @ 500mA	90 µA	75dB (1kHz)	4-XDFN	770 Pcs

Engineering Selection Recommendations

Parametric Equivalent Selection (AP7341D-15FS4-7, AP7343-15FS4-7B, AP7343D-15FS4-7B): These Diodes Incorporated parts maintain full electrical and mechanical compatibility with the AP7341-15FS4-7. All parts are ROHS3 compliant, carry MSL 1 rating, and operate across the identical -40°C to 85°C temperature range. AP7341D-15FS4-7 offers the highest inventory availability at 15200 units. AP7343 variants provide improved dropout voltage performance (0.44V vs 0.47V) with slightly elevated quiescent current (60 µA vs 50 µA).

Manufacturer Recommended Alternative Selection (BU15TD2WNVX-TL, NCP177BMX150TCG): These parts require design verification before implementation. BU15TD2WNVX-TL (Rohm Semiconductor) reduces output current capacity to 200mA and increases dropout voltage to 0.7V but extends input voltage tolerance to 6V. NCP177BMX150TCG (onsemi) increases output current capacity to 500mA and reduces dropout voltage to 0.38V but elevates quiescent current to 90 µA. Both alternatives maintain 1.5V output voltage, surface mount package configuration, Enable control, and Over Current protection. All substitute parts are ROHS3 compliant with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can AP7341D-15FS4-7 directly replace AP7341-15FS4-7 without PCB modifications?

A: Yes. AP7341D-15FS4-7 is a parametric equivalent with identical electrical specifications and 4-XDFN package format. No design changes are required.

Q: What is the primary difference between AP7341 and AP7343 series?

A: Both maintain 1.5V output and 300mA current capacity. AP7343 variants feature improved dropout voltage (0.44V @ 300mA vs 0.47V @ 150mA) and slightly higher quiescent current (60 µA vs 50 µA). Both are pin-compatible in the 4-XDFN package.

Q: Can NCP177BMX150TCG be used in place of AP7341-15FS4-7?

A: NCP177BMX150TCG provides higher output current (500mA vs 300mA) and lower dropout voltage (0.38V vs 0.47V) but increases quiescent current to 90 µA. Electrical compatibility exists for 1.5V output applications. Package compatibility is maintained (4-XDFN). Application current requirements must be verified to confirm suitability.

Q: Is BU15TD2WNVX-TL suitable for 300mA applications?

A: BU15TD2WNVX-TL is rated for 200mA maximum output current, which is below the AP7341-15FS4-7 specification of 300mA. This part is suitable only for applications requiring 200mA or less. Dropout voltage is also higher at 0.7V @ 200mA.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the AP7341-15FS4-7.

Q: What is the package compatibility between AP7341-15FS4-7 and BU15TD2WNVX-TL?

A: AP7341-15FS4-7 uses 4-XDFN package (X2-DFN1010-4). BU15TD2WNVX-TL uses 4-UDFN package (SSON004X1010). Both are 4-pin surface mount packages with similar footprint dimensions but different designations. PCB layout verification is required before substitution.

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