PI5PD2065TAEX Equivalent & Substitute Parts

Part Overview

The PI5PD2065TAEX is a Power Switch/Driver IC manufactured by Diodes Incorporated, classified as a Power Management (PMIC) component. This N-Channel high-side power switch operates at 1.5A maximum output current with a 1:1 input-to-output ratio and is housed in a SOT-23-5 package. The device is currently listed as obsolete, making identification of functionally equivalent substitute parts essential for design continuity and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI5PD2065TAEX
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Switch Type	USB Switch
Output Type	N-Channel
Output Configuration	High Side
Ratio - Input:Output	1:1
Current - Output (Max)	1.5A
Voltage - Load	2.7V ~ 5.5V
Rds On (Typ)	70mOhm
Fault Protection	Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	SC-74A, SOT-753
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the PI5PD2065TAEX are identified based on the following critical parameters that determine functional equivalence:

Switch Type & Output Configuration: USB Switch, High Side output
Voltage Range: 2.7V ~ 5.5V load voltage compatibility
Fault Protection: Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
Package Type: SOT-25 (functionally compatible with SOT-23-5 in high-side switching applications)
RoHS & Compliance: ROHS3 Compliant, REACH Unaffected

The substitute parts are grouped by output current rating and channel type. While the PI5PD2065TAEX is an N-Channel device, the substitute parts listed are P-Channel equivalents from Diodes Incorporated's AP21xx and AP21xx series, which provide equivalent high-side switching functionality with the same voltage range, protection features, and compliance certifications. The primary differentiator among substitutes is the maximum output current rating (500mA, 1A, or 1.5A) and input logic type (Inverting or Non-Inverting).

Parameter Comparison

Part Number	Manufacturer	Output Type	Current - Output (Max)	Rds On (Typ)	Voltage - Load	Operating Temperature	Package	Product Status	Input Type
PI5PD2065TAEX	Diodes Incorporated	N-Channel	1.5A	70mOhm	2.7V ~ 5.5V	-40°C ~ 125°C (TJ)	SOT-23-5	Obsolete	Non-Inverting
AP2141DWG-7	Diodes Incorporated	P-Channel	500mA	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Non-Inverting
AP2141WG-7	Diodes Incorporated	P-Channel	500mA	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Non-Inverting
AP2151DWG-7	Diodes Incorporated	P-Channel	500mA	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Non-Inverting
AP2151WG-7	Diodes Incorporated	P-Channel	500mA	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Non-Inverting
AP2161DWG-7	Diodes Incorporated	P-Channel	1A	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Inverting
AP2161WG-7	Diodes Incorporated	P-Channel	1A	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Inverting
AP2171DWG-7	Diodes Incorporated	P-Channel	1A	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Non-Inverting
AP2171WG-7	Diodes Incorporated	P-Channel	1A	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Non-Inverting
AP2181DWG-7	Diodes Incorporated	P-Channel	1.5A	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Inverting
AP2181WG-7	Diodes Incorporated	P-Channel	1.5A	95mOhm	2.7V ~ 5.5V	-40°C ~ 85°C (TA)	SOT-25	Active	Inverting

Engineering Selection Recommendations

For Direct Current Rating Match (1.5A): AP2181DWG-7 and AP2181WG-7 provide equivalent 1.5A output current capacity. Both are Active status products with full ROHS3 compliance and REACH unaffected certification. The primary design consideration is input logic type: AP2181DWG-7 and AP2181WG-7 feature Inverting input logic, requiring circuit-level adaptation if the original design assumes Non-Inverting logic.

For Lower Current Applications (1A): AP2161DWG-7, AP2161WG-7, AP2171DWG-7, and AP2171WG-7 are suitable for applications requiring 1A maximum output. AP2161 series uses Inverting input logic, while AP2171 series uses Non-Inverting input logic. Selection depends on existing circuit design requirements.

For Minimum Current Applications (500mA): AP2141DWG-7, AP2141WG-7, AP2151DWG-7, and AP2151WG-7 support 500mA output current with Non-Inverting input logic. These are appropriate only for designs with reduced current requirements.

Packaging Consideration: All substitute parts use SOT-25 packaging, which differs from the original SOT-23-5. PCB layout modifications are required for physical compatibility.

Temperature Operating Range: The PI5PD2065TAEX operates to 125°C (TJ), while all substitute parts operate to 85°C (TA). Applications requiring extended temperature operation above 85°C require design review.

Frequently Asked Questions (FAQ)

Q: Can AP2181DWG-7 directly replace PI5PD2065TAEX without circuit modification? A: AP2181DWG-7 matches the 1.5A current rating and voltage range. However, it features Inverting input logic compared to the original Non-Inverting logic, and uses SOT-25 packaging instead of SOT-23-5. Circuit-level verification of input logic compatibility and PCB layout redesign for the new package are required.

Q: What is the difference between AP2141, AP2151, AP2161, AP2171, and AP2181 series? A: These series differ in maximum output current rating and input logic type. AP2141/AP2151 provide 500mA, AP2161/AP2171 provide 1A, and AP2181 provides 1.5A. Within each current rating, the series designation indicates input logic: AP2x6x and AP2x8x use Inverting logic, while AP2x4x and AP2x7x use Non-Inverting logic.

Q: Why do substitute parts have higher Rds On values (95mOhm vs. 70mOhm)? A: The higher on-resistance in substitute parts reflects design differences between N-Channel and P-Channel implementations. Circuit thermal analysis should account for increased power dissipation at maximum current.

Q: Are all substitute parts ROHS3 compliant? A: Yes, all listed substitute parts are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original PI5PD2065TAEX.

Q: What is the difference between DWG-7 and WG-7 packaging variants? A: DWG-7 indicates Cut Tape (CT) & Digi-Reel® packaging, while WG-7 indicates Tape & Reel (TR) or Cut Tape (CT) packaging. Both are surface-mount variants of the same die; selection depends on procurement and assembly requirements.

Q: Can I use a lower current-rated substitute if my application draws less than 1.5A? A: Yes, lower current-rated parts (1A or 500mA) are suitable for applications with reduced current requirements. However, verify that the selected part's input logic type matches circuit design assumptions.

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