AP7340D-36FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7340D-36FS4-7 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed output applications. This Surface Mount device delivers 150mA output current at a fixed 3.6V output voltage with a maximum input voltage of 5.25V. The part is currently Active in production status with 1083 units in stock. Substitute parts are identified when equivalent electrical performance, output configuration, and mechanical compatibility are maintained across the specified parameter range.

Substiute Parts

AP7340D-36FS4-7

Diodes IncorporatedIn Stock: 1118AP7340D-36FS4-7 Datasheet

Current PartRFQ

NCV8170AMX360TCG

onsemiIn Stock: 1132NCV8170AMX360TCG Datasheet

MFR RecommendedRFQ

NCV8170BMX360TCG

onsemiIn Stock: 1107NCV8170BMX360TCG Datasheet

MFR RecommendedRFQ

TLV71736PDQNR

Texas InstrumentsIn Stock: 6851TLV71736PDQNR Datasheet

MFR RecommendedRFQ

TLV71736PDQNT

Texas InstrumentsIn Stock: 1769TLV71736PDQNT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7340D-36FS4-7 are qualified based on the following criteria:

• Fixed output voltage of 3.6V
• Output current capability of 150mA
• Positive output configuration
• Surface Mount packaging with 4-pin configuration
• Active product status
• ROHS3 compliance
• Operating temperature range compatibility (-40°C minimum and 85°C or higher maximum)
• Enable control feature
• Over Current protection

The substitute parts are grouped into two categories based on package type: 4-XDFN (1x1) devices from onsemi and 4-X2SON (1x1) devices from Texas Instruments. Both package types maintain electrical equivalence while offering alternative sourcing options.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original AP7340D-36FS4-7.

The onsemi NCV8170AMX360TCG and NCV8170BMX360TCG devices offer extended operating temperature range (-40°C ~ 125°C) and AEC-Q100 automotive qualification. These parts are packaged in 4-XDFN (1x1) format, matching the original package footprint. Both variants provide identical electrical specifications with lower quiescent current (0.9 µA vs. 50 µA) and improved dropout voltage performance (0.24V @ 150mA).

The Texas Instruments TLV71736PDQNR and TLV71736PDQNT devices are packaged in 4-X2SON (1x1) format and provide enhanced protection features including Short Circuit and Under Voltage Lockout (UVLO) protection. Operating temperature range matches the original specification (-40°C ~ 85°C). These parts feature higher quiescent current (55 µA) and slightly higher dropout voltage (0.35V @ 150mA) compared to onsemi alternatives.

Package type selection between 4-XDFN and 4-X2SON requires PCB layout verification due to different footprint geometries, despite both maintaining 1x1mm dimensions.

Frequently Asked Questions (FAQ)

Q: Can NCV8170AMX360TCG and NCV8170BMX360TCG be used interchangeably with AP7340D-36FS4-7?

A: Yes. Both onsemi parts maintain the same fixed 3.6V output voltage, 150mA output current, positive output configuration, and Surface Mount 4-XDFN package. Electrical performance is equivalent within the specified parameter range. The extended operating temperature range (-40°C ~ 125°C) provides additional margin beyond the original -40°C ~ 85°C specification.

Q: What is the difference between NCV8170AMX360TCG and NCV8170BMX360TCG?

A: Both parts are electrically identical with matching specifications. The difference lies in the device grade designation (A vs. B variant). Both are AEC-Q100 qualified and suitable for automotive applications. Selection between variants depends on specific procurement or qualification requirements.

Q: Can TLV71736PDQNR and TLV71736PDQNT replace the AP7340D-36FS4-7 directly?

A: Electrical substitution is valid for fixed 3.6V output, 150mA current, and positive output configuration. However, the package type differs: TLV71736 uses 4-X2SON (1x1) while AP7340D uses 4-XDFN (1x1). PCB layout and footprint must be verified before implementation. Both parts operate within the -40°C ~ 85°C temperature range matching the original specification.

Q: What are the key differences between TLV71736PDQNR and TLV71736PDQNT?

A: Both parts are electrically identical. The difference is in the packaging designation (R vs. T suffix). Both are supplied in Tape & Reel format and maintain identical electrical specifications. Selection depends on tape configuration or supplier availability requirements.

Q: Why do substitute parts have different quiescent current values?

A: Quiescent current variation reflects different IC design architectures across manufacturers. AP7340D specifies 50 µA, onsemi NCV8170 specifies 0.9 µA, and Texas Instruments TLV71736 specifies 55 µA. These differences are within acceptable ranges for linear regulator applications and do not affect functional equivalence for the specified 150mA output current and 3.6V fixed output voltage.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (NCV8170AMX360TCG, NCV8170BMX360TCG, TLV71736PDQNR, TLV71736PDQNT) are ROHS3 compliant, matching the original AP7340D-36FS4-7 compliance status.

Q: What protection features should I consider when selecting a substitute?

A: The original AP7340D-36FS4-7 provides Over Current protection. onsemi NCV8170 variants add Over Temperature protection. Texas Instruments TLV71736 variants provide Over Current, Over Temperature, Short Circuit, and Under Voltage Lockout (UVLO) protection. Enhanced protection features in substitute parts provide additional design margin without compromising compatibility.