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AP2161SG-13 Equivalent & Substitute Parts
Part Overview
The AP2161SG-13 is a Power Management Integrated Circuit (PMIC) manufactured by Diodes Incorporated, functioning as a P-Channel power switch driver with 1:1 input-output ratio and 1A maximum output current. This device is classified as a USB Switch with high-side output configuration, designed for load voltage operation between 2.7V and 5.5V. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Equivalent and substitute parts are identified based on matching electrical characteristics including output channel type, current rating, on-resistance specifications, fault protection features, and operating temperature range. Substitute parts may differ in packaging format, input logic type, or manufacturer while maintaining functional compatibility within specified electrical parameters.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AP2161SG-13 |
| Manufacturer | Diodes Incorporated |
| Category | Power Management (PMIC) |
| Switch Type | USB Switch |
| Output Type | P-Channel |
| Number of Outputs | 1 |
| Ratio - Input:Output | 1:1 |
| Output Configuration | High Side |
| Voltage - Load | 2.7V ~ 5.5V |
| Current - Output (Max) | 1A |
| Rds On (Typ) | 95mOhm |
| Input Type | Inverting |
| Features | Status Flag |
| Fault Protection | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Packaging | Cut Tape (CT) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the AP2161SG-13 are classified into two primary categories based on electrical and functional compatibility:
Parametric Equivalents (Diodes Incorporated AP2171 Series): Parts AP2171AS-13, AP2171DSG-13, and AP2171SG-13 maintain identical electrical specifications including 1A output current, 95mOhm on-resistance, P-Channel output configuration, and 1:1 input-output ratio. The primary distinction is input logic type: these parts feature Non-Inverting input logic compared to the AP2161SG-13's Inverting input. All three parts operate within the same 2.7V to 5.5V load voltage range and include identical fault protection (Current Limiting, Over Temperature, Reverse Current, UVLO). Packaging variations include Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. MSL rating differs for AP2171SG-13 (MSL 3, 168 Hours) versus the others (MSL 1, Unlimited).
Manufacturer Recommended Alternatives (Texas Instruments TPS202x Series): Parts TPS2020D, TPS2020DR, TPS2021D, TPS2021DR, TPS2022D, TPS2022DR, and TPS2022DRQ1 represent functional alternatives with modified electrical characteristics. These N-Channel devices operate within the same 2.7V to 5.5V load voltage range and share identical 1:1 ratio, high-side output configuration, and Inverting input logic. Key electrical differences include reduced on-resistance (33mOhm versus 95mOhm) and varied output current ratings: TPS2020 series at 200mA, TPS2021 series at 600mA, and TPS2022 series at 1A. Operating temperature extends to -40°C to 125°C (TJ) for TI parts. TPS2022DRQ1 includes automotive qualification (AEC-Q100). All TI alternatives maintain identical fault protection features and RoHS3 compliance.
Substitution Criteria: Compatibility is determined by matching load voltage range (2.7V ~ 5.5V), output configuration (High Side), interface type (On/Off), fault protection suite (Current Limiting, Over Temperature, UVLO), and package form factor (8-SOIC). Channel type (P-Channel versus N-Channel) and input logic (Inverting versus Non-Inverting) represent functional differences requiring circuit-level evaluation.
Parameter Comparison
| Parameter | AP2161SG-13 | AP2171AS-13 | AP2171DSG-13 | AP2171SG-13 | TPS2020D | TPS2020DR | TPS2021D | TPS2021DR | TPS2022D | TPS2022DR | TPS2022DRQ1 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Diodes Inc. | Diodes Inc. | Diodes Inc. | Diodes Inc. | TI | TI | TI | TI | TI | TI | TI |
| Output Type | P-Channel | P-Channel | P-Channel | P-Channel | N-Channel | N-Channel | N-Channel | N-Channel | N-Channel | N-Channel | N-Channel |
| Input Type | Inverting | Non-Inverting | Non-Inverting | Non-Inverting | Inverting | Inverting | Inverting | Inverting | Inverting | Inverting | Inverting |
| Current - Output (Max) | 1A | 1A | 1A | 1A | 200mA | 200mA | 600mA | 600mA | 1A | 1A | 1A |
| Rds On (Typ) | 95mOhm | 95mOhm | 95mOhm | 95mOhm | 33mOhm | 33mOhm | 33mOhm | 33mOhm | 33mOhm | 33mOhm | 33mOhm |
| Voltage - Load | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Fault Protection | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO |
| Features | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag | Status Flag |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Diodes Incorporated AP2171 Series (Parametric Equivalents): These parts are direct functional replacements for the AP2161SG-13 with identical electrical performance. Selection between AP2171AS-13, AP2171DSG-13, and AP2171SG-13 depends on packaging requirements and moisture sensitivity specifications. AP2171AS-13 and AP2171DSG-13 maintain MSL 1 (Unlimited) rating identical to the main part, while AP2171SG-13 carries MSL 3 (168 Hours). All three maintain Active product status and full RoHS3 compliance. The primary functional difference is Non-Inverting input logic, requiring circuit-level verification of compatibility with existing control signals.
Texas Instruments TPS202x Series (Manufacturer Recommended Alternatives): These N-Channel alternatives provide functional substitution with extended operating temperature range (-40°C to 125°C junction temperature versus -40°C to 85°C ambient for AP2161SG-13). TPS2022D and TPS2022DR match the 1A output current specification of the main part, while TPS2020 and TPS2021 series provide reduced current ratings (200mA and 600mA respectively). All TI parts feature reduced on-resistance (33mOhm versus 95mOhm), improving thermal performance. TPS2022DRQ1 includes automotive-grade qualification (AEC-Q100) for applications requiring automotive reliability standards. Channel type conversion from P-Channel to N-Channel requires circuit redesign. All alternatives maintain Active product status, RoHS3 compliance, and identical fault protection features.
Packaging Considerations: All substitute parts maintain 8-SOIC package form factor compatible with AP2161SG-13 PCB layouts. Packaging format variations (Cut Tape, Tape & Reel, Tube, Digi-Reel) affect supply chain logistics but do not impact electrical or mechanical compatibility.
Frequently Asked Questions (FAQ)
Q: Can AP2171 series parts directly replace AP2161SG-13 without circuit modification?
A: AP2171 series parts maintain identical electrical specifications (1A output current, 95mOhm on-resistance, 2.7V-5.5V load voltage, high-side output configuration, identical fault protection). The primary difference is input logic type: AP2171 parts feature Non-Inverting input while AP2161SG-13 uses Inverting input. Circuit-level evaluation of control signal polarity is required to determine if direct substitution is feasible.
Q: What are the key differences between P-Channel AP2161SG-13 and N-Channel TPS202x alternatives?
A: Channel type represents a fundamental circuit architecture difference. P-Channel devices (AP2161SG-13, AP2171 series) switch the high side of the load to ground, while N-Channel devices (TPS202x series) require different gate drive circuitry and load configuration. TPS202x parts offer reduced on-resistance (33mOhm versus 95mOhm) and extended operating temperature range (-40°C to 125°C junction temperature). Substitution requires complete circuit redesign and is not a direct pin-compatible replacement.
Q: Are all substitute parts compatible with the 8-SOIC package footprint?
A: Yes. All listed substitute parts utilize 8-SOIC (0.154", 3.90mm Width) package form factor, maintaining mechanical and PCB layout compatibility with AP2161SG-13. Packaging format variations (Cut Tape, Tape & Reel, Tube, Digi-Reel) affect supply chain handling but do not impact physical footprint or pin configuration.
Q: What is the significance of MSL rating differences between AP2171 variants?
A: Moisture Sensitivity Level (MSL) specifies maximum exposure time to ambient humidity before component degradation. AP2171AS-13 and AP2171DSG-13 carry MSL 1 (Unlimited) rating, identical to AP2161SG-13, allowing indefinite storage without moisture control. AP2171SG-13 carries MSL 3 (168 Hours), requiring controlled storage environment and bake-out procedures if moisture exposure exceeds 168 hours. Selection depends on supply chain storage conditions and manufacturing process requirements.
Q: Do TPS202x parts include reverse current protection like AP2161SG-13?
A: No. AP2161SG-13 and AP2171 series include Reverse Current protection in their fault protection suite. TPS202x series (TPS2020, TPS2021, TPS2022) include Current Limiting (Fixed), Over Temperature, and UVLO protection but do not specify Reverse Current protection. This represents a functional difference requiring circuit-level evaluation for applications requiring reverse current blocking.
Q: What is the operating temperature advantage of TPS202x parts?
A: TPS202x series parts operate to -40°C to 125°C junction temperature (TJ), compared to AP2161SG-13 at -40°C to 85°C ambient temperature (TA). Extended upper temperature limit provides thermal margin for high-power applications or elevated ambient environments. TPS2022DRQ1 includes automotive-grade qualification (AEC-Q100) for temperature cycling and reliability requirements in automotive applications.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts (AP2171 series and TPS202x series) maintain ROHS3 Compliant status identical to AP2161SG-13, ensuring compatibility with environmental and regulatory requirements for lead-free manufacturing and restricted substance compliance.
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