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TPS2055P Equivalent & Substitute Parts
Part Overview
The TPS2055P is a Power Management Integrated Circuit (PMIC) functioning as a power switch/driver with 1:1 N-Channel configuration and 250mA output capability. Manufactured by Texas Instruments, this component operates across a 2.7V to 5.5V load voltage range with integrated fault protection including current limiting, over-temperature monitoring, and under-voltage lockout (UVLO). The TPS2055P is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Switch Type | General Purpose |
| Output Configuration | High Side, N-Channel, 1:1 |
| Output Current (Max) | 250mA |
| Voltage - Load | 2.7V ~ 5.5V |
| Rds On (Typical) | 80mOhm |
| Fault Protection | Current Limiting (Fixed), Over Temperature, UVLO |
| Operating Temperature | -40°C ~ 85°C (TA) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the TPS2055P is determined by strict equivalence across the following critical parameters:
- Functional Architecture: 1:1 N-Channel high-side power switch configuration
- Electrical Performance: 250mA maximum output current, 80mOhm typical on-resistance, 2.7V to 5.5V load voltage range
- Protection Features: Current limiting, over-temperature protection, and UVLO functionality
- Thermal Range: -40°C to 85°C operating temperature
- Compliance: ROHS3 compliance and REACH unaffected status
The TPS2055D qualifies as a direct functional substitute, maintaining identical electrical specifications and protection characteristics while differing only in packaging format and mounting technology.
Parameter Comparison
| Parameter | TPS2055P | TPS2055D |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Base Product Number | TPS2055 | TPS2055 |
| Product Status | Obsolete | Active |
| Switch Type | General Purpose | General Purpose |
| Output Configuration | High Side, N-Channel, 1:1 | High Side, N-Channel, 1:1 |
| Output Current (Max) | 250mA | 250mA |
| Voltage - Load | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Rds On (Typical) | 80mOhm | 80mOhm |
| Fault Protection | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The TPS2055D is the manufacturer-recommended substitute for the obsolete TPS2055P. Both components maintain identical electrical specifications, protection mechanisms, and compliance certifications. Selection between these parts depends on design requirements:
TPS2055P (Through-Hole DIP): Suitable for legacy systems, breadboard prototyping, and applications requiring through-hole mounting technology.
TPS2055D (Surface-Mount SOIC): Recommended for new designs, high-density PCB layouts, and modern manufacturing processes. Active product status ensures long-term availability and supply chain continuity.
Both variants satisfy ROHS3 compliance and REACH requirements, with unlimited moisture sensitivity classification appropriate for standard industrial environments.
Frequently Asked Questions (FAQ)
Q: Can TPS2055D directly replace TPS2055P in existing designs?
A: Electrical and functional compatibility is complete. PCB layout modification is required due to package format differences (8-DIP through-hole versus 8-SOIC surface-mount). Pin-to-pin functionality remains identical.
Q: Why is TPS2055P classified as obsolete?
A: The TPS2055P through-hole DIP package represents legacy technology. Texas Instruments transitioned the TPS2055 product line to surface-mount SOIC packaging (TPS2055D) to align with modern manufacturing standards and reduce production costs.
Q: Are there electrical performance differences between TPS2055P and TPS2055D?
A: No. Both variants deliver 250mA maximum output current, 80mOhm on-resistance, and identical fault protection features across the 2.7V to 5.5V load voltage range.
Q: What compliance certifications apply to both parts?
A: Both TPS2055P and TPS2055D are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity).
Q: Which part should be selected for new product development?
A: TPS2055D is the appropriate choice for new designs. Active product status guarantees manufacturer support, ongoing availability, and compatibility with current supply chain infrastructure.
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