AP7115-18WG-7 Equivalent & Substitute Parts

Part Overview

The AP7115-18WG-7 is a linear voltage regulator IC manufactured by Diodes Incorporated, designed to deliver a fixed 1.8V output at 150mA in a compact SOT-25 surface mount package. This device is classified as a Power Management PMIC and maintains Active product status. The regulator features integrated over-current and over-temperature protection, making it suitable for low-power applications requiring stable 1.8V rails. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges.

Substiute Parts

AP7115-18WG-7

Diodes IncorporatedIn Stock: 6344AP7115-18WG-7 Datasheet

Current PartRFQ

TPS73118MDBVREP

Texas InstrumentsIn Stock: 4500TPS73118MDBVREP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP7115-18WG-7 is determined by the following critical parameters:

• Fixed output voltage of 1.8V
• Output current capability of 150mA minimum
• Maximum input voltage of 5.5V or greater
• Surface mount packaging compatible with SOT-25 footprint
• Active product status and current manufacturing availability
• RoHS3 compliance and equivalent regulatory certifications

The TPS73118MDBVREP from Texas Instruments meets these substitution criteria through matching output voltage, output current, input voltage rating, and package footprint compatibility. Both devices maintain Active status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7115-18WG-7 and TPS73118MDBVREP maintain Active product status with current manufacturing and distribution availability. Selection between these devices should be based on application-specific requirements within the provided parameter specifications.

The AP7115-18WG-7 operates within a -40°C to 85°C temperature range with a maximum dropout voltage of 0.3V at 150mA and quiescent current of 80 µA. The TPS73118MDBVREP extends the operating temperature range to -55°C to 125°C, provides lower dropout voltage of 0.1V at 150mA, and includes additional protection features for short circuit and reverse polarity conditions. Both devices are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the TPS73118MDBVREP directly replace the AP7115-18WG-7 in existing designs?

A: Both devices share identical output voltage (1.8V), output current (150mA), and maximum input voltage (5.5V) specifications. The SOT-25 and SOT-23-5 packages are mechanically compatible with the same footprint (SC-74A, SOT-753). Substitution is electrically valid within the specified parameter ranges.

Q: What are the differences in dropout voltage between these regulators?

A: The AP7115-18WG-7 has a maximum dropout voltage of 0.3V at 150mA, while the TPS73118MDBVREP specifies 0.1V at 150mA. Lower dropout voltage in the TPS73118MDBVREP may provide improved performance in applications with limited input voltage headroom.

Q: How do the quiescent current specifications differ?

A: The AP7115-18WG-7 draws 80 µA quiescent current, while the TPS73118MDBVREP draws 550 µA. Applications requiring minimal standby power consumption should consider the lower quiescent current of the AP7115-18WG-7.

Q: Are both devices suitable for the same operating temperature range?

A: The AP7115-18WG-7 operates from -40°C to 85°C, while the TPS73118MDBVREP operates from -55°C to 125°C. The TPS73118MDBVREP provides extended temperature coverage for applications requiring operation beyond the AP7115-18WG-7 range.

Q: What additional protection features does the TPS73118MDBVREP provide?

A: The TPS73118MDBVREP includes short circuit and reverse polarity protection in addition to the over-current and over-temperature protection found in the AP7115-18WG-7.