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TPS2550DBVR Equivalent & Substitute Parts
Part Overview
The TPS2550DBVR is a Power Management Integrated Circuit (PMIC) functioning as an N-Channel power switch driver with 1:1 configuration in SOT-23-6 surface mount packaging. This device delivers 1.1A maximum output current with 85mOhm typical on-resistance, designed for high-side switching applications across 2.5V to 6.5V load voltage ranges. The part carries a "Not For New Designs" product status from Texas Instruments, necessitating identification of equivalent and substitute components for ongoing production support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TPS2550DBVR |
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Package / Case | SOT-23-6 |
| Switch Type | General Purpose |
| Output Type | N-Channel |
| Output Configuration | High Side |
| Number of Outputs | 1 |
| Ratio - Input:Output | 1:1 |
| Voltage - Load | 2.5V ~ 6.5V |
| Current - Output (Max) | 1.1A |
| Rds On (Typ) | 85mOhm |
| Interface | On/Off |
| Input Type | Non-Inverting |
| Features | Slew Rate Controlled |
| Fault Protection | Current Limiting (Adjustable), Over Temperature, UVLO |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Not For New Designs |
Substitute Part Grouping Explanation
Substitution eligibility for the TPS2550DBVR is determined by the following critical parameters:
Primary Substitution Criteria (Must Match):
- Package / Case: SOT-23-6
- Output Type: N-Channel (for direct functional replacement)
- Output Configuration: High Side
- Number of Outputs: 1
- Ratio - Input:Output: 1:1
- Interface: On/Off
- Input Type: Non-Inverting
- Mounting Type: Surface Mount
Secondary Compatibility Parameters (Allowable Variance):
- Voltage - Load: 2.5V ~ 6.5V (substitutes must support this range or higher)
- Current - Output (Max): 1.1A minimum (substitutes may exceed this rating)
- Rds On (Typ): 85mOhm (lower values acceptable; higher values require thermal analysis)
- Operating Temperature: -40°C ~ 150°C (substitutes must meet or exceed this range)
- Fault Protection: Must include Current Limiting and Over Temperature protection
Substitute Categories:
Category A - Parametric Equivalents (Texas Instruments N-Channel): TPS2550DBVT, TPS2551DBVR, TPS2551DBVT, TPS2551QDBVRQ1 — These parts maintain identical electrical specifications and packaging, differing only in packaging format (Tape & Reel vs. Cut Tape) or automotive qualification grade.
Category B - Cross-Manufacturer Alternatives (Microchip & onsemi P-Channel): MIC2009A-1YM6-TR, MIC2009A-2YM6-TR, MIC2019A-1YM6-TR, MIC2019A-2YM6-TR, MIC2019YM6-TR, NCP380HSNAJAAT1G — These parts function as substitutes with channel-type differences (P-Channel vs. N-Channel) and require circuit topology adaptation. They maintain SOT-23-6 packaging and comparable current ratings with adjusted on-resistance specifications.
Parameter Comparison
| Part Number | Manufacturer | Output Type | Current (Max) | Rds On (Typ) | Voltage - Load | Operating Temp | Package | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|
| TPS2550DBVR | Texas Instruments | N-Channel | 1.1A | 85mOhm | 2.5V ~ 6.5V | -40°C ~ 150°C | SOT-23-6 | Not For New Designs | 12,681 Pcs |
| TPS2550DBVT | Texas Instruments | N-Channel | 1.1A | 85mOhm | 2.5V ~ 6.5V | -40°C ~ 150°C | SOT-23-6 | Not For New Designs | 3,612 Pcs |
| TPS2551DBVR | Texas Instruments | N-Channel | 1.1A | 85mOhm | 2.5V ~ 6.5V | -40°C ~ 150°C | SOT-23-6 | Not For New Designs | 100,200 Pcs |
| TPS2551DBVT | Texas Instruments | N-Channel | 1.1A | 85mOhm | 2.5V ~ 6.5V | -40°C ~ 150°C | SOT-23-6 | Not For New Designs | 3,292 Pcs |
| TPS2551QDBVRQ1 | Texas Instruments | N-Channel | 1.1A | 85mOhm | 2.5V ~ 6.5V | -40°C ~ 150°C | SOT-23-6 | Not For New Designs | 889,066 Pcs |
| MIC2009A-1YM6-TR | Microchip Technology | P-Channel | 900mA | 170mOhm | 2.5V ~ 5.5V | -40°C ~ 85°C | SOT-23-6 | Active | 26,177 Pcs |
| MIC2009A-2YM6-TR | Microchip Technology | P-Channel | 900mA | 170mOhm | 2.5V ~ 5.5V | -40°C ~ 85°C | SOT-23-6 | Active | 3,400 Pcs |
| MIC2019A-1YM6-TR | Microchip Technology | P-Channel | 900mA | 170mOhm | 2.5V ~ 5.5V | -40°C ~ 85°C | SOT-23-6 | Active | 3,130 Pcs |
| MIC2019A-2YM6-TR | Microchip Technology | P-Channel | 900mA | 170mOhm | 2.5V ~ 5.5V | -40°C ~ 85°C | SOT-23-6 | Active | 2,347 Pcs |
| MIC2019YM6-TR | Microchip Technology | P-Channel | 2A | 70mOhm | 2.5V ~ 5.5V | -40°C ~ 85°C | SOT-23-6 | Active | 6,200 Pcs |
| NCP380HSNAJAAT1G | onsemi | P-Channel | Adjustable | 70mOhm | 2.5V ~ 5.5V | -40°C ~ 85°C | SOT-23-6 Thin, TSOT-23-6 | Active | 437,300 Pcs |
Engineering Selection Recommendations
For Direct N-Channel Replacement (Recommended Primary Path):
Select from the Texas Instruments N-Channel family: TPS2550DBVT, TPS2551DBVR, TPS2551DBVT, or TPS2551QDBVRQ1. These parts maintain identical electrical performance and packaging specifications. TPS2551QDBVRQ1 carries AEC-Q100 automotive qualification and is recommended for applications requiring automotive-grade reliability. TPS2551DBVR offers the highest inventory availability (100,200 units) among N-Channel options.
For Cross-Manufacturer Substitution (Requires Circuit Adaptation):
Microchip Technology MIC2009A and MIC2019A series, or onsemi NCP380HSNAJAAT1G, function as functional alternatives with P-Channel topology. These require circuit redesign to accommodate inverted gate drive logic. MIC2019YM6-TR provides superior on-resistance (70mOhm vs. 85mOhm) and higher current capability (2A), suitable for applications with reduced thermal margin requirements. NCP380HSNAJAAT1G offers the largest inventory (437,300 units) and adjustable current limiting, providing design flexibility.
Product Status Consideration:
All Texas Instruments N-Channel options carry "Not For New Designs" status. For new design implementations, Microchip Technology (Active status) or onsemi (Active status) alternatives provide long-term supply assurance and ongoing manufacturer support.
Compliance & Certification:
All listed parts maintain ROHS3 compliance and REACH unaffected status. TPS2551QDBVRQ1 uniquely qualifies under AEC-Q100 automotive standards, appropriate for automotive and mission-critical applications.
Frequently Asked Questions (FAQ)
Q: Can TPS2551DBVR directly replace TPS2550DBVR without circuit modification?
A: Yes. TPS2551DBVR maintains identical electrical specifications, packaging, and pin configuration. The substitution requires no circuit topology changes. Verify PCB layout compatibility with the specific packaging format (Cut Tape vs. Tape & Reel).
Q: What is the difference between TPS2550DBVR and TPS2550DBVT?
A: Both parts are electrically identical. The difference lies in packaging format: DBVR indicates Cut Tape & Digi-Reel packaging, while DBVT indicates Tape & Reel packaging. Selection depends on assembly equipment compatibility and procurement requirements.
Q: Can Microchip MIC2009A or MIC2019A series replace the TPS2550DBVR?
A: Functional replacement is possible with circuit redesign. These Microchip parts use P-Channel topology versus the N-Channel TPS2550DBVR, requiring inverted gate drive logic. Load voltage range is narrower (2.5V ~ 5.5V vs. 2.5V ~ 6.5V), and maximum current is lower (900mA vs. 1.1A). Operating temperature range is also reduced (-40°C ~ 85°C vs. -40°C ~ 150°C).
Q: Why does NCP380HSNAJAAT1G list "Adjustable" current rating?
A: The NCP380HSNAJAAT1G features programmable current limiting through external resistor configuration, allowing design-specific current threshold adjustment. This differs from the fixed 1.1A rating of the TPS2550DBVR.
Q: Is TPS2551QDBVRQ1 suitable for automotive applications?
A: Yes. TPS2551QDBVRQ1 carries AEC-Q100 qualification, meeting automotive industry reliability and testing standards. This variant is appropriate for automotive, industrial, and mission-critical applications requiring enhanced qualification documentation.
Q: What inventory considerations should guide part selection?
A: TPS2551DBVR offers the highest N-Channel availability (100,200 units), ensuring supply continuity for production. NCP380HSNAJAAT1G provides the largest overall inventory (437,300 units) if cross-manufacturer substitution is acceptable. Microchip MIC2009A-1YM6-TR (26,177 units) offers reasonable availability among active-status alternatives.
Q: Are all listed parts RoHS3 compliant?
A: Yes. All parts listed maintain ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements for commercial and industrial applications.
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