AP7342D-1828FS6-7 Equivalent & Substitute Parts

Part Overview

The AP7342D-1828FS6-7 is a linear voltage regulator IC from Diodes Incorporated designed for dual-output power management applications. This device provides two fixed output channels at 1.8V and 2.8V with 150mA output current per channel, housed in a 6-pin X2-DFN1212-6 package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this specific dual-output regulation topology.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Output Configuration	Positive, Fixed
Number of Regulators	2
Output Voltages	1.8V, 2.8V
Output Current per Channel	150mA
Input Voltage (Max)	5.25V
Dropout Voltage (Max)	0.39V @ 150mA, 0.3V @ 150mA
Quiescent Current	100 µA
PSRR	75dB (1kHz)
Control Features	Enable
Protection Features	Over Current
Operating Temperature	-40°C ~ 85°C
Package	6-XFDFN Exposed Pad (X2-DFN1212-6)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AP7342D-1828FS6-7 is determined by the following critical parameters:

Dual-output positive fixed voltage regulator topology with 1.8V and 2.8V outputs
Minimum output current capability of 150mA per channel
Maximum input voltage of 5.25V
Surface mount packaging with exposed pad design
Operating temperature range of -40°C to 85°C
RoHS3 compliance and MSL Level 1 rating

The AP7345D-1828RH4-7 qualifies as a substitute part because it maintains the same output voltage configuration (1.8V and 2.8V), exceeds the minimum current requirement (300mA vs. 150mA), operates within the same input voltage and temperature specifications, and meets identical compliance standards. The increased current capability and enhanced protection features make this part suitable for applications where the original part is no longer available.

Parameter Comparison

Parameter	AP7342D-1828FS6-7 (Main Part)	AP7345D-1828RH4-7 (Substitute)
Manufacturer	Diodes Incorporated	Diodes Incorporated
Output Voltages	1.8V, 2.8V	1.8V, 2.8V
Output Current per Channel	150mA	300mA
Input Voltage (Max)	5.25V	5.25V
Dropout Voltage (Max)	0.39V @ 150mA, 0.3V @ 150mA	0.39V @ 300mA, 0.3V @ 300mA
Quiescent Current	100 µA	140 µA
PSRR	75dB (1kHz)	75dB (1kHz)
Control Features	Enable	Current Limit, Enable
Protection Features	Over Current	Short Circuit
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package	6-XFDFN Exposed Pad (X2-DFN1212-6)	8-XFDFN Exposed Pad (X2-DFN1612-8)
Product Status	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The AP7345D-1828RH4-7 is the recommended substitute for the AP7342D-1828FS6-7 based on the following factors:

Both parts are manufactured by Diodes Incorporated and maintain identical output voltage specifications (1.8V and 2.8V)
The substitute part is in Active product status, ensuring continued availability and supply chain stability
Both parts meet ROHS3 compliance and carry MSL Level 1 ratings, maintaining equivalent environmental and reliability standards
The substitute part provides doubled output current capability (300mA vs. 150mA), offering design margin for existing and future applications
Enhanced protection features (Short Circuit in addition to Over Current) provide improved robustness
Package change from 6-pin to 8-pin X2-DFN requires PCB layout modification but maintains the same exposed pad thermal design philosophy

Frequently Asked Questions (FAQ)

Q: Can the AP7345D-1828RH4-7 directly replace the AP7342D-1828FS6-7 without circuit modifications?

A: The substitute part requires PCB layout changes due to package transition from 6-XFDFN to 8-XFDFN. Pin assignments and functional connectivity must be verified against both datasheets. The increased current capability is backward-compatible with designs rated for 150mA operation.

Q: What are the key differences between these two parts?

A: The primary differences are output current rating (150mA vs. 300mA), package size (6-pin vs. 8-pin), quiescent current (100 µA vs. 140 µA), and protection features (Over Current vs. Short Circuit). Output voltages, input specifications, and operating temperature ranges remain identical.

Q: Is the substitute part suitable for applications requiring exactly 150mA output?

A: Yes. The AP7345D-1828RH4-7 is rated for 300mA per channel, which exceeds the 150mA requirement. Applications designed for 150mA operation will function within the substitute part's specifications.

Q: Are there any thermal or reliability concerns with the package change?

A: Both packages feature exposed pad thermal design. The 8-XFDFN package provides equivalent or improved thermal performance due to larger die area. Thermal characteristics should be verified against application-specific requirements.

Q: Do both parts meet the same compliance and certification standards?

A: Yes. Both parts are ROHS3 compliant, carry MSL Level 1 ratings, and share identical REACH and ECCN classifications (EAR99, HTSUS 8542.39.0001).

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