AP7340D-15FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7340D-15FS4-7 is a linear voltage regulator IC manufactured by Diodes Incorporated, designed for positive fixed output applications. This Surface Mount device delivers 150mA output current with a fixed 1.5V output and operates across the -40°C to 85°C temperature range. The part is Active in product status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design flexibility, or supply chain considerations.

Key Parameters

Parameter	Value
Manufacturer Part Number	AP7340D-15FS4-7
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.5V
Output Current	150mA
Input Voltage (Max)	5.25V
Voltage Dropout (Max)	0.47V @ 150mA
Package / Case	4-XDFN Exposed Pad
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the AP7340D-15FS4-7 are selected based on the following critical parameters:

Fixed output voltage of 1.5V
Surface Mount packaging with 4-pin configuration
Operating temperature range of -40°C to 85°C
ROHS3 compliance and Active product status
Enable control feature and Over Current protection

The identified substitutes maintain these core electrical and mechanical specifications while allowing for variations in output current capacity, input voltage maximum ratings, and quiescent current characteristics. All substitutes are Active products with equivalent compliance certifications.

Parameter Comparison

Parameter	AP7340D-15FS4-7	AP7340-15FS4-7	BU15TD2WNVX-TL	NCP177BMX150TCG
Manufacturer	Diodes Incorporated	Diodes Incorporated	Rohm Semiconductor	onsemi
Output Voltage (Fixed)	1.5V	1.5V	1.5V	1.5V
Output Current	150mA	150mA	200mA	500mA
Input Voltage (Max)	5.25V	5.25V	6V	5.5V
Voltage Dropout (Max)	0.47V @ 150mA	0.47V @ 150mA	0.7V @ 200mA	0.38V @ 500mA
Current - Quiescent (Iq)	50 µA	50 µA	60 µA	90 µA
PSRR	75dB (1kHz)	75dB (1kHz)	70dB (1kHz)	75dB (1kHz)
Package / Case	4-XDFN Exposed Pad	4-XDFN Exposed Pad	4-UDFN Exposed Pad	4-XDFN Exposed Pad
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Control Features	Enable	Enable	Enable	Enable
Protection Features	Over Current	Over Current	Over Current, Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original AP7340D-15FS4-7.

AP7340-15FS4-7 (Diodes Incorporated) is a parametric equivalent with identical electrical specifications and packaging, providing direct substitution capability.

BU15TD2WNVX-TL (Rohm Semiconductor) offers increased output current capacity of 200mA and extended input voltage rating to 6V, with the trade-off of higher voltage dropout at rated current and slightly elevated quiescent current. Package configuration differs as 4-UDFN versus 4-XDFN.

NCP177BMX150TCG (onsemi) provides the highest output current capacity at 500mA with the lowest voltage dropout of 0.38V @ 500mA and maintains 4-XDFN packaging compatibility. Quiescent current is elevated at 90 µA. This part is suitable for applications requiring higher current delivery or lower dropout performance.

Frequently Asked Questions (FAQ)

Q: Can AP7340-15FS4-7 be used as a direct replacement for AP7340D-15FS4-7?

A: Yes. Both parts are manufactured by Diodes Incorporated with identical electrical specifications, output voltage, current rating, and 4-XDFN packaging. They are parametric equivalents.

Q: What are the key differences between BU15TD2WNVX-TL and the original part?

A: BU15TD2WNVX-TL increases output current to 200mA and input voltage maximum to 6V. However, it uses 4-UDFN packaging instead of 4-XDFN, has higher voltage dropout (0.7V @ 200mA versus 0.47V @ 150mA), and includes Over Temperature protection in addition to Over Current protection.

Q: When should NCP177BMX150TCG be selected?

A: NCP177BMX150TCG is appropriate when applications require output current exceeding 150mA or when lower voltage dropout performance is critical. It delivers 500mA output current with 0.38V dropout and maintains 4-XDFN package compatibility. Quiescent current is higher at 90 µA.

Q: Are all substitutes compatible with the same PCB layout?

A: AP7340-15FS4-7 and NCP177BMX150TCG use identical 4-XDFN packaging and are layout-compatible. BU15TD2WNVX-TL uses 4-UDFN packaging and requires PCB layout verification before substitution.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All identified substitutes are ROHS3 compliant, REACH unaffected, and carry Active product status, matching the original AP7340D-15FS4-7 compliance profile.

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